FAQ

What is the difference between CVD and HPHT for US buyers?

Both are ways to grow a diamond. CVD uses a gas atmosphere. HPHT uses high pressure and high temperature. Neither replaces the 4Cs.

The short version

Both are ways to grow a diamond. CVD uses a gas atmosphere. HPHT uses high pressure and high temperature. Neither replaces the 4Cs.

What to do next

The report should still say laboratory-grown. Carat Mate ships the certified loose diamond and its lab report to United States addresses. Prices on the site are in USD. Wrong-item returns may be considered within 3 days of delivery, subject to review.

Questions

What is the difference between CVD and HPHT for US buyers?: Both are ways to grow a diamond. CVD uses a gas atmosphere. HPHT uses high pressure and high temperature. Neither replaces the 4Cs.