PANYU, GUANGZHOU, CHINA · MADE FOR YOUCustom orders from 1 piece
Gemformia jewelry factory in Panyu, Guangzhou, with craftspeople setting gemstones at microscope workbenches

OEM & ODM GEMSTONE JEWELRY MANUFACTURER

Custom gemstone jewelry manufacturer in Guangzhou, China.

Start with One Custom Piece.
Scale to Bulk Orders.

Work with our gemstone jewelry factory in Panyu, Guangzhou, China. We develop OEM, ODM and private label 18K gold jewelry for brands, jewelry stores, online sellers and designers. Start with one custom sample to review the design, materials and craftsmanship. Once you approve the sample, we can arrange bulk production to the agreed specifications. Start with an STL or STEP file, a CAD drawing, a sketch, a design image or a screenshot.

Custom jewelry from one pieceNatural & lab-grown gemstones
Inside our Panyu workshopGuangzhou, China · Our team at work

YOUR PROJECT, PERSONALLY SUPPORTED

Clear steps. One-to-one support.

Share a photo, an idea or a hand-drawn sketch. We will help you develop it into a finished piece, with a reply to your inquiry within 24 hours.

US$50–2,000 budgets

We work with budgets ranging from US$50 to US$2,000. Tell us your budget so we can discuss suitable options. Each quotation depends on the design, materials, dimensions and quantity.

Personal design support

Work one-to-one with our team. We can provide CAD design with up to two rounds of minor revisions to refine your piece.

Confidentiality agreement

A non-disclosure agreement (NDA) is available for your project. Ask us to arrange it before sharing confidential designs or project details.

Bank transfer via SWIFT

We accept international bank transfers via SWIFT. Our team will provide payment instructions for your confirmed order.

From your idea to delivery

  1. Share your requirements.
    Send pictures, an idea or a sketch, together with your budget and intended quantity.
  2. Develop the design / CAD.
    Review the proposed design with us, with up to two minor CAD revision rounds.
  3. Confirm materials and dimensions.
    We proceed to the next stage only after you confirm the materials, sizes and agreed specifications. We also agree the quotation and production timeline before production.
  4. Make your piece.
    Our team coordinates production according to the confirmed design and specifications.
  5. Complete and inspect.
    The finished jewelry is checked against the agreed project details.
  6. Confirm delivery details.
    We confirm the actual completion timeline, delivery arrangements and final quantity with you. Shipping time is additional.

Get a Free Quote   One-to-one support · Reply within 24 hours

YOUR FILE. YOUR SKETCH. YOUR STARTING POINT.

Custom jewelry from
STL, STEP, sketches & images.

Send the reference you already have. Our Panyu, Guangzhou team can start with a 3D file, a design image, a hand-drawn sketch, a photograph or a screenshot, then review the details for your finished gemstone jewelry.

STL · STEP

3D design files

Share your STL or STEP file, the intended dimensions and material requirements. We review the model, stone fit and construction before production.

DESIGN

Design images

Send a digital design or concept image. Tell us which proportions, gemstone details and finishes you want to develop.

SKETCH

Hand-drawn sketches

A clear hand sketch is enough to begin. We help develop the drawing and CAD details for you to review.

PHOTO

Photos & screenshots

Start with a reference photograph or screenshot. Mark the details to keep or change and share the finished size you have in mind.

No CAD file yet? A clear image or sketch is enough for the first discussion. We confirm the design, dimensions, materials and manufacturing requirements with you before production.

Since 2018Gemformia Jewelry
1 pieceCustom orders welcome
Natural + lab-grownTwo gemstone options
Panyu, GuangzhouChina · Design, cutting & setting

A CLOSER LOOK AT OUR WORK

Custom ring & bracelet manufacturing.

Explore our custom gemstone rings and bracelet designs.
Use these samples as a starting point for your own design.

CUSTOMIZATION EXAMPLES

Pink sapphire · Custom ring

Pink sapphire ring

A pink sapphire ring with a rectangular center stone and surrounding accents. Share your preferred stone dimensions, ring size, metal and setting details for a custom quotation.

View Sample Details

Aquamarine · Custom rings

Aquamarine rings

Aquamarine ring designs with pale blue center stones. Discuss the stone shape, dimensions, ring size, metal and setting you would like to develop.

View Sample Details

Royal blue gemstone · 18K gold

18K royal blue three-stone ring

An 18K gold ring with a royal blue center stone and side accents. Stone material, dimensions, ring size and setting details are confirmed for your individual project.

View Sample Details

Textured metalwork · Made to order

Textured bracelet collection

Bracelet designs with textured surfaces and decorative details. Discuss your preferred pattern, wrist size, dimensions and metal before we confirm the proposed customization.

View Sample Details

Yellow jadeite · Custom rings

Yellow jadeite rings

Yellow jadeite ring designs with warm-colored center stones. Share your preferred stone dimensions, ring size, metal and surrounding details for an individual review.

View Sample Details

Royal blue gemstone · Custom ring

Royal blue halo ring

A royal blue gemstone ring with a surrounding halo. Discuss the center stone material and dimensions, accent details, metal and ring size with our team.

View Sample Details

Our photographs show sample work. Stone specifications, metal, size, price and availability are confirmed for each custom project.

THE GEMFORMIA JOURNAL

Jewelry Manufacturing Blog

Practical guides from our jewelry factory in Panyu, Guangzhou, to help you plan your next custom piece.

View All Articles

FIND THE RIGHT STARTING POINT

Jewelry manufacturing & gemstone supply services.

From a first custom piece to a dimensioned cutting brief, choose the service that matches what you want to develop.

YOUR FIRST PIECE. YOUR NEXT COLLECTION.

One-piece & small-batch
jewelry manufacturing.

Finished custom gemstone jewelry starts from one piece. Develop a personal commission, review the first piece for your store, or begin a small-batch collection for your brand.

1 pieceFinished custom jewelry · Made to your brief
Plan Your First Piece
  1. 01

    Define the first design

    Share your reference, stone, metal, size, quantity and working budget. We review the project and prepare an individual quotation.

  2. 02

    Review the finished piece

    Check the agreed dimensions, gemstone appearance, setting and finish before deciding on further quantities or variations.

  3. 03

    Discuss your next order

    Plan additional sizes, designs or a small production run. Materials, pricing and schedules are confirmed for the next order.

The one-piece starting quantity applies to finished custom jewelry. Loose gemstone cutting and supply quantities are assessed separately.

YOUR DESIGN OR AN IDEA TO DEVELOP

OEM, ODM & private label jewelry manufacturing.

Work with the Gemformia team in Daluotang, Panyu, Guangzhou, China. Choose the starting point that matches your design and business.

01 / OEM MANUFACTURING

OEM jewelry manufacturing

Send your CAD drawing, STL file or established design reference. We review the gemstone, metal, dimensions, setting and finish before agreeing the manufacturing specifications.

Prepare an OEM design brief

02 / ODM DEVELOPMENT

ODM jewelry design & manufacturing

Start with a sketch, reference photograph or brief and budget. Our team works through design development, drawing or 3D modeling and the proposal for your finished gemstone piece.

Explore ODM development

03 / START WITH ONE PIECE

Private label jewelry development

Finished custom jewelry starts from one piece. We’ll work to complete your custom piece as soon as possible and confirm the timeline with you before production. Shipping and loose-stone processing are assessed separately.

Plan a small-batch project
A MANUFACTURING PARTNER FOR YOUR BUSINESS

Custom jewelry for
stores, brands & designers.

We work with jewelry stores, boutiques, online shops, marketplace sellers, independent brands and design studios. Bring us a customer order, a first sample or a collection brief.

01 / JEWELRY STORES & BOUTIQUES

Serve your customers

Send your customer's design reference, ring size and material preferences. Develop a custom piece or discuss a focused collection for your store.

02 / ONLINE SHOPS & SELLERS

Review before you list

Develop a physical sample for your online shop. Confirm the stone, metal, fit and finish before planning your product listing or next order.

03 / NEW & ESTABLISHED BRANDS

Build your collection

Discuss OEM, ODM or private label jewelry, including your design direction, brand logo and packaging requirements.

04 / DESIGNERS & STUDIOS

Develop your original design

Bring an STL or STEP file, a sketch or an image. Work with our design, gemstone processing and setting team on the finished piece.

PANYU, GUANGZHOU · WORKING WITH BUYERS WORLDWIDE

Made in Guangzhou.
For customers worldwide.

We welcome custom jewelry projects from Asia, Europe, the Americas, Africa and Oceania. Tell us your destination so we can review your design, production and delivery requirements together.

YOUR DESIGN, REVIEWED REMOTELY

Work with us from abroad

Send your STL or STEP file, design image, sketch or screenshot by email or WhatsApp. We confirm the materials, measurements, design and quotation with you before manufacturing.

A CLEAR PLAN FOR YOUR DESTINATION

Confirm production & delivery

Tell us your country, postal code and target date. We confirm the production schedule, supported shipping options and costs separately, including the agreed handling of destination duties and taxes.

AsiaEuropeAmericasAfricaOceania

BEFORE THE SETTING, THE STONE

Custom gemstone cutting & supply for jewelry brands.

The character of a piece begins with its gemstone. Our cutting team works with natural and lab-grown colored stones, shaping them to suit your design.

  • Natural & lab-grown colored gemstones
  • Precision shaping and polishing
  • Standard and specialty cuts
  • Dimensions reviewed for your setting
Discuss your gemstone Prepare your cutting brief
Oval cuts
Faceted specialty cuts
Step cuts & mixed outlines
Green & pink specialty cuts

PEOPLE BEHIND THE PIECES

Inside our jewelry factory in Panyu, Guangzhou.

Meet the people behind the finished jewelry.
Real teams. Our own photographs.

Jewelry design & CAD development

From a sketch to a considered design.

Gemstone cutting & polishing

Shaping color, proportion and light.

Gemstone jewelry setting

Each stone, carefully placed.

Custom order coordination

Keeping the details connected.

Design, gemstone processing and jewelry setting, connected by one team.
English-speaking staff available for factory visits by appointment.

Plan a factory visit
FROM YOUR REFERENCE TO A FINISHED PIECE

Our custom jewelry
manufacturing process.

Start with the information you have. We work through the design, materials and manufacturing requirements together before making your piece.

01 / SHARE

Send your reference

An STL or STEP file, design image, hand sketch, photograph or screenshot. Include your intended size, quantity and budget where known.

02 / DEVELOP

Review the design

Discuss CAD or design development, gemstone dimensions, metal and construction. Confirm the proposal and quotation before production.

03 / MAKE

Manufacture & set

Our team coordinates the agreed modeling, casting, gemstone processing, setting and finishing stages for your design.

04 / FINISH

Inspect & arrange delivery

The finished piece is checked against the agreed project details. We confirm delivery arrangements and provide a contact for after-sales support.

Production timing depends on the design, materials and quantity and is confirmed before work begins. Shipping time is additional.

Gemformia reception and meeting room in Panyu, GuangzhouDALUOTANG · PANYU · GUANGZHOU

GEMFORMIA · PANYU, GUANGZHOU

Your custom jewelry factory in Guangzhou, China.

Our company was established in 2018 and is based in Daluotang, Panyu District, Guangzhou, Guangdong 511400, China, within the Guangdong-Hong Kong-Macao Greater Bay Area. We work on custom colored gemstone jewelry and precision gemstone processing for jewelry and watchmaking.

Our work spans natural gemstones and lab-grown colored gemstones, connecting material selection, creative design, precision shaping, polishing and stone setting. Craftspeople with more than ten years of experience bring specialist skills to this work.

We connect product development, sales coordination, production and after-sales support. Whether you need one personal piece or are developing a collection, our team works with you from the first design discussion through production and delivery.

Guangzhou address
Rooms 401–402, 4/F, Building 2
No. 2 Yinjian Road, Daluo Industrial Zone
Panyu District, Guangzhou, Guangdong 511400, China中国广东省广州市番禺区大罗工业区银建路2号2栋4楼401—402室,邮编:511400

Let's discuss your design

Visit our Panyu jewelry factory

Discuss your design, materials and project details with our team. An English-speaking host can be arranged by appointment.

MEETING OUR CUSTOMERS · GUANGZHOU 2020

Exhibiting at the
Canton Fair Complex.

From December 25–27, 2020, our team exhibited at the Guangzhou International Live Streaming Industry Expo, held in Area B of the Canton Fair Complex in Guangzhou.

At booth 11.3F47, we shared our jewelry with visitors and introduced our work in person. We took part as Guangzhou Only You Jewelry Co., Ltd., the company behind Gemformia.

Exhibition
Guangzhou International Live Streaming Industry Expo
Dates
–
Booth
11.3F47 · Area B

About the exhibition

Read the official venue’s English event listing for the exhibition dates, halls and organizer.

Explore the exhibition details

THE PEOPLE, MATERIALS & PROCESS BEHIND YOUR PIECE

Why choose Gemformia as your jewelry manufacturer?

Gemstone expertise, a connected production process
and a team in Guangzhou's jewelry manufacturing hub.

01 / CRAFT

Craftspeople with 10+ years of experience

Our experienced craftspeople shape gemstones to the required dimensions and polish them to a mirror finish, with attention to how each stone will fit the jewelry design.

02 / MATERIALS

Natural & lab-grown colored gemstones

Discuss both material routes with one team. We review the stone type, color, shape and setting requirements around the piece you want to make.

03 / SERVICE

Development through after-sales support

Product development, sales coordination, manufacturing and after-sales support stay connected. Design reviews, production follow-up and final inspection support consistent workmanship and the agreed schedule.

04 / LOCATION

The Daluotang jewelry supply chain

Our location in Panyu brings us into a concentrated jewelry manufacturing community. Guangzhou's transport and port connections support the coordination of import, export and overseas customer orders.

GEMSTONE SUPPLY EXPERIENCE

Jewelry, luxury & watchmaking

Our gemstone supply experience spans international luxury and jewelry brands, Chinese watchmakers and leading U.S. TV shopping platforms.

  • Swarovski
  • Prada
  • Fiyta
  • Seagull

DOCUMENTATION FOR YOUR GEMSTONE PROJECT

Gemstone Reports
& Certificates.

Review example reports for natural colored gemstones and laboratory-grown diamonds. Tell us which reports and documents you need when discussing your custom project.

AIGS

Asian Institute of Gemological Sciences

Natural ruby identification report

Example report showing gemstone identification, origin and treatment information.

Open full-size report

GIA

Gemological Institute of America

Ruby report

Example ruby report showing gemstone identification and treatment results.

Open full-size report

GUILD

GUILD Gemological Laboratory

Natural emerald report

Example report with origin and clarity-enhancement information for a natural emerald.

Open full-size report

IGI

International Gemological Institute

Laboratory-grown diamond report

Example report showing laboratory-grown origin and diamond grading details.

Open full-size report

Each report applies to the stone identified in that report. Confirm your gemstone details and reporting requirements with our team before ordering.

BEFORE WE BEGIN

Custom jewelry manufacturing FAQ.

Questions about your own project?

Talk to our team

Before You Order

Design, materials, samples, pricing and delivery.

Do you accept small orders from independent jewelry brands and designers?

Yes. Gemformia accepts finished custom gemstone jewelry projects starting from one piece, including initial samples and small-batch orders. Send your design, gemstone requirements, metal, size and quantity so we can assess the project and prepare a quotation. Loose gemstone cutting is quoted separately.

Can you manufacture custom 18K gold gemstone rings and earrings?

Yes. Gemformia manufactures custom 18K gold gemstone rings and earrings in Panyu, Guangzhou, China. Share your reference design, preferred gemstone, dimensions and quantity. We review the materials and construction requirements before confirming the quotation and production timeline.

Can you make custom lab-grown emerald jewelry?

Yes. Gemformia develops custom lab-grown emerald jewelry. Send your preferred design, stone shape and dimensions, preferred metal, finished size and quantity. We confirm stone availability, suitability and manufacturing requirements for each project before quoting.

Can you make jewelry from STL, STEP, CAD files, sketches or images?

Yes. You can start with an STL or STEP file, a CAD drawing, a design image, a hand-drawn sketch, a photograph or a screenshot. Tell us which details you want to keep or change, along with the gemstone, metal, size and quantity. We review the design and discuss any construction changes needed before production. CAD design is available with up to two rounds of minor revisions.

What should I send to get a custom jewelry quotation?

Send a reference image, sketch or CAD file if available, together with the gemstone type, whether you prefer natural or lab-grown material, preferred metal, finished size, quantity and delivery destination. Include your target budget and required delivery date if known. If some details are undecided, describe your idea so we can identify what needs to be confirmed. Quotations are free, and we reply to inquiries within 24 hours.

Can I choose natural or lab-grown gemstones for my custom jewelry?

Yes. Specify the gemstone type and whether you require natural or lab-grown material. Include the shape, dimensions and preferred appearance. We confirm material information, availability and suitability for your design before proceeding.

How long does custom gemstone jewelry production take?

The timeline depends on design complexity, gemstone availability, materials and manufacturing requirements. Share your design, quantity and required delivery date so we can review the schedule. We confirm the production timeline before work begins; shipping time is additional.

Can I visit your workshop and meet an English-speaking team member?

Yes. Contact us in advance to arrange a workshop visit and an English-speaking host. Our address is Rooms 401–402, 4/F, Building 2, No. 2 Yinjian Road, Daluo Industrial Zone, Panyu District, Guangzhou, Guangdong 511400, China. Share your preferred visit date and project details when booking.

Can I approve a sample before placing a batch order?

Yes. You can start with a sample and review it before proceeding with a batch order. Sample fees depend on the specific design. We confirm the approved materials, dimensions, workmanship, quantity, quotation and production schedule before batch production.

Can you add my brand logo and provide branded packaging?

Yes. We can add your brand logo and provide branded packaging. Send your logo artwork, preferred placement and packaging requirements. We confirm feasibility, specifications, pricing and any quantity requirements for your project before production.

Can you work with gemstones supplied by the customer?

Yes. We accept customer-supplied gemstones. Share the stone type, dimensions, quantity and clear photographs before shipping the stones. We review suitability for the design and confirm handling and shipping arrangements with you in advance.

Can you provide gemstone reports and metal purity testing?

Yes. Gemstone reports and metal purity testing can be arranged for your project. Tell us which stones, metals and documents you require. We confirm the available laboratory or testing provider, scope, fees and timing before ordering. Each report applies only to the item identified in that report.

Where do you ship, and how are shipping costs and taxes handled?

We serve international customers, mainly in Europe and North America, and can arrange DHL delivery to supported destinations worldwide. Share your delivery country and postal code so we can confirm shipping availability and costs. Import duties and taxes depend on the destination country; applicable charges and arrangements are confirmed for your order.

What are your sample fees, payment methods and CAD revision terms?

Sample fees depend on the specific style, materials and manufacturing requirements. We accept bank transfers, including international transfers via SWIFT. CAD design can include up to two rounds of minor revisions. We confirm the sample quotation, payment arrangements and revision scope before starting.

How is the price of custom gemstone jewelry calculated?

Pricing depends on the gemstones, metal, dimensions, design complexity, workmanship and quantity. We work with budgets ranging from US$50 to US$2,000 and discuss options that suit your requirements. Each project is quoted individually; sample photographs do not establish a fixed price or stock availability.

Do you offer custom gemstone cutting and polishing?

Yes. Gemformia offers custom gemstone cutting and polishing. Send the gemstone material, required shape, dimensions and quantity for review. Minimum quantities, pricing and processing schedules are assessed separately from finished jewelry orders.

Does your jewelry factory offer OEM, ODM and private label manufacturing?

Yes. OEM projects start from your existing design and agreed specifications. ODM projects develop your idea, sketch or reference image into a proposed design. We provide one-to-one project support, and a non-disclosure agreement (NDA) is available. Ask us to arrange it before sharing confidential designs or project information. For private label projects, share your brand requirements, gemstone and metal choices, dimensions and quantity. Our Guangzhou team reviews the design, manufacturing and any branding requirements before confirming a quotation.

After-Sales Support

Get help with your delivered piece and discuss the next steps.

How do I contact Gemformia for after-sales support?

Contact your project representative, email service@onlyyouhk.com or message our WhatsApp at +86 173 2403 7112. Include your order reference, a description of your request and relevant photographs so our team can review the details with you.

What should I do if there is a problem with my delivered jewelry?

Contact our team with your order reference, clear photographs or a video of the item, and a description of the issue. For delivery damage, also keep the packaging and share photographs of it. We will review the information and discuss the next steps with you. Contact us before sending any item back so the return arrangements can be confirmed.

Who should I contact about repairs or resizing after delivery?

Please contact our team with your order reference, photographs and the change or repair you need. Available options depend on the design, materials and condition of the piece. Ask us to confirm feasibility, any charges, timing and shipping arrangements before sending the item or authorizing work.

LET'S CREATE SOMETHING PERSONAL

Start your
custom jewelry project.

Send us your idea. Tell us what matters to you, and we'll help define the next step.

TELEPHONE / 电话+86 137 5182 9289
OUR LOCATION IN CHINA
Rooms 401–402, 4/F, Building 2
No. 2 Yinjian Road, Daluo Industrial Zone
Panyu District, Guangzhou, Guangdong 511400, China中国广东省广州市番禺区大罗工业区银建路2号2栋4楼401—402室,邮编:511400

Have drawings or reference images?
You can send them directly by email.

GEMFORMIA · PROJECT INQUIRY

Talk to our jewelry manufacturing team.

A few details are all we need to start.

Sample work · Made to order
Final specifications and pricing confirmed per project.

Workshop video

Open video in a new tab

LET’S TALK