manufactured · input

Lab-Grown Diamonds (CVD/HPHT)

Synthetic gem diamonds grown by CVD or HPHT, production led by China (~40-50% capacity) and India. Rapidly substituting natural stones at a ~90% price discount.

3

Source countries

5

Companies

1

Goods affected

0

Claims on record

What depends on it

Goods that need this input

1 essential American goods rely on lab-grown diamonds (cvd/hpht) somewhere upstream in their supply chain.

Where it comes from

Source countries

Share of global supply, by country.

CountryShare of supply
INIndia91%
THThailand5%
AEUnited Arab Emirates1%

Who makes it

Supplier companies

5 companies produce lab-grown diamonds (cvd/hpht).

De Beers Group

HQ LU8% share

Historic dominant rough-diamond miner/marketer; also runs Lightbox lab-grown line. With Russia's Alrosa, anchors global rough-diamond supply.

Diamond Foundry Inc.

HQ US

US CVD lab-grown gem-diamond and single-crystal-diamond-wafer maker.

Element Six (De Beers Group)

HQ GB

De Beers' synthetic-diamond division; industrial + CVD optical/electronic-grade diamond.

Greenlab Diamonds

HQ IN

Indian CVD lab-grown diamond manufacturer.

Henan Huanghe Whirlwind(600172.SS)

HQ CN

Major Chinese synthetic-diamond maker (HPHT); industrial grit + gem-grade.