A buyer in Dubai sent us a warranty claim on a custom moissanite tennis bracelet: after three weeks the bracelet had twisted so the stones faced inward, the box clasp had opened once, and two links had stretched. The stones were perfect; the link gauge and the clasp were undersized for a 7-inch wrist wearing a 3 mm stone across 21 links. A tennis bracelet is a chain, not a row of rings, and it has to flex without losing its line.
Below are the numbers we spec on a custom moissanite tennis bracelet, from stone spacing to clasp type, so the piece lies flat on the wrist and stays there.
Stone size and link count: the drape equation
A standard 7-inch (17.8 cm) tennis bracelet built with 3 mm round moissanite across the front face uses 21 to 23 stones, set in individual four-prong heads. We spec the link between heads at 1.2 mm wide and 0.6 mm thick, so the bracelet flexes with the wrist. A 4 mm stone uses 17 to 19 stones on the same length and a 1.4 mm link. Buyers who stretch the link width to save on metal get a bracelet that gapes on the wrist; buyers who over-build the link get a rigid band that does not drape. Our tennis link overview lists the same stone-to-link ratios.
The twisting problem and the stone seat
A tennis bracelet twists when the stone head sits above the link centre of gravity. We set the stone seat flush with the link top and add a small lower rail under each head, so the weight of the stone pulls the bracelet face-up on the wrist. On bracelets above 4 mm stone size we widen the link to 1.6 mm to resist the torque. Buyers who skip the lower rail report the twist within the first fitting.
Clasp: box with figure-8, or lobster with safety
A tennis bracelet must not come off unclasped. We build two clasp options: a box clasp with a figure-8 safety (the default, rated for daily wear) and a lobster claw with an extra safety latch (for bracelets above 8 g). A simple spring ring is not used on tennis bracelets; it opens on impact. The clasp sits on the underside of the wrist, so it should be low-profile (we hold the clasp under 3 mm thick). We reference the tennis bracelet construction note on Wikipedia only for background; the clasp ratings above are ours.
Metal and karat: why 14K outlasts 10K on a chain
A bracelet flexes thousands of times a day, so the metal work-hardens. 10K gold is harder but more brittle; 14K flexes better and resists link cracking over time. We spec 14K as standard on tennis bracelets and reserve 10K for buyer-led cost-down. Sterling silver bracelets are quoted for fashion lines but will tarnish and need regular polish. Our silver versus 10K guide compares the two on a wear-time basis.
Sizing and the extender chain
Wrist sizes range from 15 cm (petite) to 20 cm (large). We build to the measured wrist plus 1 cm of drape, so the bracelet slides one finger under. For fashion lines where the buyer does not know the end customer's wrist size, we add a 2 cm extender chain with a small moissanite drop at the end. The extender adds about USD 2.80 per bracelet and reduces size returns by roughly 40 percent on our accounts.
Stone quality on a 21-stone line
A tennis bracelet uses 21 to 23 stones in one row, so the buyer cannot hide a mismatched stone. We spec all stones in a bracelet to the same colour grade (near-colourless D to F) and the same clarity, because one off-colour stone stands out in a row. Melee above 2 mm ships with a report; stones below 2 mm are sorted by eye under 10x loupe. Our QC checklist logs the colour-grade match across every stone in the row before the clasp is closed.
How many 3 mm stones fit on a 7-inch bracelet?
21 to 23 stones across the front face, depending on prong width. We confirm the exact count on the render, because each buyer wants a different prong-to-gap ratio.
What clasp do you recommend for a 10 g bracelet?
A box clasp with figure-8 safety, plus an extra safety latch. A lobster claw on a 10 g bracelet can pop open on impact; the box clasp carries the weight on the tongue, not the spring.
Can I build a two-tone tennis bracelet?
Yes. We build the links in one alloy and set the stones in another (white gold links with yellow gold heads, for example). We spec the solder compatibility before casting; dissimilar alloys need a transition link.
Do you offer a rhodium polish on white gold tennis bracelets?
Yes. White gold ships rhodium plated. Re-plating is an after-sales service; we note the expected re-plating interval (12 to 18 months) on the QC pack.
Send us the wrist range, stone size and target retail price band. We return a stone count, link gauge and clasp recommendation on the signed brief. Ask us to quote your custom moissanite tennis bracelet.
Frequently Asked Questions
Is moissanite a good diamond alternative for retail buyers?
Yes for price-sensitive customers who want brilliance and hardness. Moissanite ranks 9.25 on the Mohs scale, holds up to daily wear and costs a fraction of a natural diamond of the same size, so it resells fast in bridal and fashion lines.
What is the minimum order for wholesale moissanite?
MOQ starts at 50 pieces per design for stock items. Custom cuts and private-label settings usually start at 100–300 pieces depending on the mold.
Do you provide certificates with moissanite stones?
Yes. Every parcel ships with GRA or IGI documentation listing carat weight, color grade and cut. We recommend passing the certificate to your end customer for trust.
How long does sample and bulk production take?
Samples ship in 3–5 days. Bulk runs take 15–20 days under 500 pieces, and 25–30 days for custom work.
