FCS Jewelry – Lab grown diamonds & fine jewelry

IGI-certified lab grown diamonds

Brilliance, grown to your specification.

Round and fancy shapes, melee and colored stones — graded, inscribed and shipped from Shenzhen.

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Independent certification

An IGI report with every certified stone.

Individually graded and laser inscribed, so every carat you sell can be traced to its certificate.

See the reports Lab diamonds

Fine jewelry

10K, 14K, 18K gold & PT950 platinum.

Rings, earrings and necklaces finished by hand, ready for your counter or your brand.

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Factory direct

Made in our workshop, priced without the middleman.

3–7 day dispatch on in-stock items, and an onsite-verified factory behind every order.

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OEM / ODM

Your design, our craftsmanship.

From sketch and CAD to casting, setting and private-label packing — for brands of every size.

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Since 2000 · Shenzhen

We grow, cut, certify and set lab diamonds — then finish them in 10K–18K gold and PT950 platinum for wholesalers, retailers and brands on five continents.

2000: Designing, producing and exporting jewelry
3: Fairs: Hong Kong, Las Vegas, Thailand
1:1: An IGI report for every certified stone
3–7: Days dispatch for in-stock items

Our story Talk to us

Company film — inside FCS Jewelry02:30

The signature edit

Eight pieces our atelier is proudest of.

From a pink cushion stone to an 18K split-shank solitaire — a short edit of the stones and settings buyers ask for first.

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Why FCS

Nine reasons buyers reorder.

Factory pricing, certified stones and dependable timelines — the basics, done properly, order after order.

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01

Factory Direct

Our own Shenzhen workshop, no middlemen.
02

3–7 Day Dispatch

In-stock pieces ship in 3–7 days.
03

IGI Certified

An IGI report with every certified stone.
04

Verified Supplier

Onsite-verified by Alibaba and Intertek.
05

On-time Shipping

Reliable lead times, tracked worldwide.
06

Global Buyers

Wholesalers and brands on five continents.
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Every Shape

Round, fancy shapes and calibrated melee.
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Fancy Colors

Pink, blue, yellow, green and white.
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Made Custom

OEM / ODM from sketch to finished piece.

Lab diamond shapes

Ten shapes. One standard of brilliance.

Choose a cut and we’ll show you what’s in stock — every IGI-certified stone ships with its own report.

All lab diamonds

Fancy color

A spectrum, grown in the lab.

Pinks, blues, yellows, greens and more — across shapes and sizes, ready for statement pieces and limited collections.

Browse colored diamonds

Jewelry collections

Jewelry, finished to order.

14K and 18K gold and S925 sterling silver — set with lab grown diamonds or moissanite, for your counter or your own label.

Rings01 / 06

From the catalog

Fresh from the bench.

Stones and finished pieces — loose stones graded and ready to set, and jewelry finished in gold and sterling silver.

Featured pieces View full catalog

Yellow Lab Grown Diamonds Yellow Radiant Lab Grown Diamond

Yellow Lab Grown Diamonds Yellow Marquise Lab Grown Diamond

Yellow Lab Grown Diamonds Yellow Square Brilliant Cut Lab Grown Diamond

Yellow Lab Grown Diamonds Yellow Cushion Lab Grown Diamond

Yellow Lab Grown Diamonds Yellow Pear Lab Grown Diamond

Yellow Lab Grown Diamonds Yellow Oval Lab Grown Diamond

White Moissanite White Heart Loose Moissanite – Style B

White Moissanite White Heart Loose Moissanite – Style A

OEM / ODM

Your design, our craftsmanship.

Bring a sketch, a reference photo or a finished sample. We model it in CAD, cast it in gold or platinum, set IGI-certified stones and laser-inscribe the report number.

Start a custom project Send a sketch

01

Brief

Send a sketch, a photo or a Pinterest board — or pick from our catalog and tell us what to change.
02

CAD & 3D proof

Our designers model the piece, tune stone seats and approve weight and metal before anything is cast.
03

Sample

A finished sample in your chosen metal — 10K, 14K, 18K gold or PT950 platinum — with real stones set.
04

Production

Casting, setting, polishing and plating in our Shenzhen workshop under in-process inspection.
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IGI & inscription

Certified stones ship with their individual IGI report; laser inscription links stone and certificate.
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Pack & ship

Private-label packaging if required, then tracked international dispatch.