Custom 18K gold gemstone rings

OEM and ODM ring development for brands and designers

For OEM gemstone rings, send your established design and identify the dimensions and details to follow. For ODM ring development, send a sketch or reference photo and explain the gemstone, 18K gold, ring size and budget you have in mind. We review the design and manufacturing proposal with you before production.

Our supplied three-stone ring, pink sapphire ring and halo ring guides show design references for a new custom brief. They do not establish the gemstone material, stock or price for your order.

What determines your custom ring quotation?

The gemstone, 18K gold requirements, ring dimensions, design development, setting, finish and quantity determine the quotation. Tell us which specifications are fixed and which need our input. Confirm the agreed materials and manufacturing stages before production; later designs or quantities are reviewed separately.

Custom 18K gold gemstone rings, from one piece

Develop a colored gemstone ring around your design, your customer’s brief or the first piece in a new collection. Gemformia brings together jewelry design, gemstone processing and stone setting in Daluotang, Panyu, Guangzhou, China. Finished custom jewelry starts from one piece.

This service focuses on rings. For earrings and other projects within our current range, visit our 18K gold jewelry customization page.

Choose the gemstone, shape and setting

Tell us whether you require a natural or lab-grown gemstone, together with the preferred color, shape and dimensions. These are different material choices and should be specified in your brief. Our lab-grown emerald jewelry service is a starting point if you are considering that material.

Our supplied ring samples include a three-stone design, a halo design and rectangular center stones. Use them to explain the proportions and details you prefer. We review the stone, setting, ring size and 18K gold requirements together before confirming a proposal. Sample photographs show design references; stone availability, material and final specifications are confirmed for each project.

What should you send for a custom ring quotation?

• A reference photo, sketch, CAD drawing or STL file. Start with a photo or sketch if you do not have a technical drawing.
• Gemstone details: natural or lab-grown material, stone type, color, shape and length, width and depth where known.
• Ring specifications: ring size and sizing system, preferred band dimensions, setting details and 18K gold requirements.
• Order details: quantity, budget, destination and any preferred completion date.

You do not need every detail to make a first inquiry. Share what you know, and we will identify the information needed to review your ring. Send drawings and reference images by email or WhatsApp; the website form is a simple way to start the conversation.

From your ring design to the finished piece

1. Review the brief. Discuss the design, gemstone, ring size, metal, budget and quantity.
2. Confirm the proposal. Review the design and modeling requirements before production.
3. Make and set the ring. The process includes model making, casting, finishing the metalwork and stone setting, according to the agreed design.
4. Finish and inspect. Complete polishing, any agreed surface treatment and final quality inspection.

We’ll work to complete your custom piece as soon as possible and confirm the timeline with you before production. Timing depends on the design, materials and manufacturing requirements. Complex designs may take longer; shipping time is additional.

A starting point for shops, designers and new brands

A jewelry store can send a customer’s ring brief. A designer can share a sketch or CAD drawing. A new brand or online seller can begin with one finished custom piece to review before discussing a wider collection. Repeat orders and additional designs are reviewed against the agreed specifications, quantities and material availability.

If your project concerns loose stones rather than a finished ring, use our gemstone cutting and polishing service. Loose-stone quantities and processing schedules are assessed and quoted separately.

Discuss your ring project with our team in Guangzhou

We are based in Daluotang, Panyu District, Guangzhou, Guangdong, China. Workshop visits can be arranged in advance, with an English-speaking host available by appointment. Contact us with your design reference and preferred visit date so we can confirm the arrangements.

Tell us about your custom 18K gold gemstone ring, or send your drawings to service@onlyyouhk.com.