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India · Certified stones, loose stones & melee

Lab Grown Diamonds Manufacturer & Wholesaler

CVD Diamond Inc — lab-grown diamond manufacturer in India, wholesale from Los Angeles.

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Live inventory — stones · 0.003 to 10 ct
IGI certified·GIA certified·Type IIa·D to K colour·FL to SI·Since 2012·
Loose lab-grown diamonds of mixed shapes beside tweezers
Grown and cut in India

Who we are

CVD diamond manufacturer with fifty years in diamonds.

We are a family-run manufacturer. Our reactors and cutting floor are in India, with a sales office in Los Angeles and operations in New York. After five decades with mined goods, we moved to lab-grown early, in 2012, and never looked back. The stones are genuine diamonds, chemically and optically identical to mined, grown in weeks instead of ages.

Our story
Downtown Los Angeles skyline
Los Angeles, 550 South Hill

How a CVD diamond is grown

How lab grown CVD diamonds are made.

See how a diamond is grown

01

Seed

A thin slice of diamond plate, polished flat, seeds every crystal we grow.

02

Reactor

Carbon plasma builds the crystal layer by layer, three to six weeks per run.

03

Rough

Each grown plate is scanned and planned to find the largest, cleanest stone inside it.

04

Cut & polish

The planned centre stone is laser-cut, then polished to fifty-seven facets in India.

05

Graded

Every certified stone leaves with an IGI or GIA report and a laser inscription.

What we sell

Wholesale lab grown diamonds and melee.

A round diamond in front of IGI and GIA grading reports Certified stones IGI and GIA graded, D to K, FL to SI, 0.30 to 10.00 ct. Shop certified stones Round melee from 1 to 3.25 mm above rows of emerald, radiant, oval, princess and marquise layouts Melee rounds & pointers Every size from 1 to 3.25 mm, plus small fancy-shape layouts. Shop melee Tweezers above a spread of loose lab-grown diamonds Matched pairs Stones sold in twos, matched for size and colour. Shop matched pairs Yellow, pink and blue diamonds Fancy color Certified lab-grown diamonds in fancy colors. Shop fancy color

Lab grown diamonds wholesale, direct from the manufacturer

CVD Diamond Inc is the largest manufacturer and wholesaler of lab grown diamonds serving Los Angeles and NYC. As CVD diamond manufacturers, we grow every stone in our own reactors in India, cut and polish it on our own floor, and sell it at trade prices through our Los Angeles office and our operations in New York.

Certified and non certified lab grown diamonds

Our lab grown diamond wholesale stock runs from 0.003 ct melee to 10 ct stones. Certified lab grown diamonds come with IGI or GIA reports, D to K colour and FL to SI clarity. Non certified lab grown diamonds and lab grown melee diamonds suit jewelers who set in volume.

What is a lab grown CVD diamond?

A lab grown CVD diamond is made by chemical vapor deposition: carbon from a gas settles, layer by layer, on a thin diamond seed until it becomes a rough crystal. The result is a real Type IIa diamond, chemically and optically identical to a mined one. We have grown them since 2012. See how a diamond is grown.

Lab grown diamond wholesaler in Los Angeles.

550 South Hill St, Suite 1550, Los Angeles, CA 90013