A tennis necklace may look simple at first glance, but producing a well-balanced custom design requires careful coordination between diamond selection, setting structure, metal weight, necklace length and manufacturing details.
For brands developing a custom tennis necklace, working with a manufacturer that can manage these elements together can make the development process more predictable—from the initial design and CAD development to sampling and final production.
1. Diamond Size Has a Major Impact on the Final Design
One of the first decisions in a custom tennis necklace project is the diamond size.
Common design directions may use diamonds around 1.5 mm, 2 mm, 2.5 mm or 3 mm, depending on the desired appearance and budget. A larger diamond does not simply increase the visual size of the necklace. It can also affect the number of stones required, the setting structure and the overall metal weight.
For jewelry brands developing a new collection, it is important to consider the relationship between diamond size, total carat weight and finished necklace length rather than selecting the stone size independently.
With lab-grown diamonds, brands can also explore different size and specification combinations while maintaining a more flexible development budget.
2. Setting Structure Affects Both Appearance and Durability
The setting is another important part of tennis necklace manufacturing.
Depending on the design, manufacturers may use different prong, shared-prong, bezel or other custom setting structures. The setting needs to securely hold each stone while maintaining a consistent visual rhythm along the entire necklace.
Small differences in spacing or setting proportions can become noticeable when repeated across dozens of stones.
This is particularly important for custom designs where the brand wants a specific look rather than a standard production style.
3. Necklace Length and Gold Weight Need to Be Considered Together
Finished length is another factor that directly affects the construction of a tennis necklace.
A longer necklace normally requires more diamond units and additional metal components. However, the final gold weight also depends on diamond size, setting structure, link construction and the thickness of the individual components.
For this reason, a reference image alone is usually not enough to provide a precise production quotation.
For a more accurate estimate, manufacturers normally need information such as:
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Finished necklace length
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Diamond size or total carat weight
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Number of diamonds
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Metal type and karat
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Setting style
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Clasp structure
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Any specific thickness or width requirements
These details allow the manufacturer to evaluate the design more accurately before production begins.
4. CAD Development Helps Confirm the Design Before Production
Custom tennis necklaces often require CAD development before manufacturing.
A jewelry brand may provide a sketch, reference image, existing product or general design concept. The manufacturer can then translate the concept into a production-ready CAD model.
CAD allows both sides to review important details such as:
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Diamond spacing
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Setting proportions
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Necklace length
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Link construction
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Clasp design
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Metal thickness
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Overall appearance
This process can identify potential production issues before a sample is made.
For brands developing a new tennis necklace design, this can also make it easier to compare different diamond sizes or construction options before committing to production.
5. Lab-Grown Diamond Sourcing Can Be Part of the Manufacturing Process
For brands using lab-grown diamonds, sourcing is another important part of the project.
Diamond specifications can be selected according to the design, target market and budget. For melee diamonds, consistent color, clarity and size are particularly important because many stones are used together in one piece.
At BRRIN Jewelry, we primarily work with lab-grown diamonds and can support diamond sourcing together with custom jewelry manufacturing.
For larger center or feature stones, brands may also require specific grading documentation and stone specifications before production.
6. Small-Batch Production Can Be Useful for Independent Jewelry Brands
Not every jewelry brand needs hundreds of pieces for a new design.
Independent designers and emerging brands may want to test a new tennis necklace design with a small initial order before deciding whether to scale production.
A manufacturing partner that supports small-batch production can make this process more flexible.
The development process may include:
Reference design → CAD development → Sample → Approval → Small-batch production
This approach allows brands to evaluate the finished proportions, setting quality and overall appearance before committing to larger quantities.
7. Custom Tennis Necklace Manufacturing Is More Than Stone Setting
A successful tennis necklace requires coordination across multiple manufacturing stages.
Depending on the project, these may include:
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Lab-grown diamond sourcing
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CAD design and development
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Metal preparation
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Casting and mounting
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Stone setting
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Polishing and finishing
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Quality inspection
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Final packaging and shipment
Managing these steps through one manufacturing partner can simplify communication and reduce the need to coordinate multiple suppliers.
What Should You Prepare Before Requesting a Quote?
If you are a jewelry brand or designer looking for a custom tennis necklace manufacturer, providing as much information as possible will help the manufacturer prepare a more useful quotation.
Ideally, provide:
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Reference images or sketches
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Desired necklace length
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Diamond size or total carat weight
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Preferred metal, such as 14K or 18K gold
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Setting preference
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Target quantity
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Target price range, if available
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Any specific clasp or construction requirements
If some specifications are not finalized, that is also fine. A manufacturer can help evaluate the available options and explain how different specifications may affect the final cost.
Developing a Custom Tennis Necklace with BRRIN Jewelry
BRRIN Jewelry supports custom lab-grown diamond jewelry development for jewelry brands, designers and wholesalers.
For custom tennis necklace projects, we can assist with lab-grown diamond sourcing, CAD development, custom setting, sampling and small-batch production.
If you already have a design, reference image or target specifications, you can send them to us for evaluation.