Does HPHT look different from CVD in a US solitaire?

Not if the cut, color, and clarity match. Origin tests can tell them apart. Your eye at a dinner table in the US generally cannot.

US guides

CVD and HPHT lab-grown diamonds, explained for US shoppers

The growth method is a line on the report, not a substitute for cut.

The US decision

CVD grows diamond from a gas in a chamber. HPHT grows it under high pressure and high temperature. US jewelers set both.

What to verify

Ask whether the report discloses laboratory-grown, then read cut, color, and clarity. A weak cut CVD stone will look dull next to a well-cut HPHT stone.

What to do next

Filter lab-grown inventory and open the certificate instead of shopping by the three-letter method alone. 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

Does HPHT look different from CVD in a US solitaire?: Not if the cut, color, and clarity match. Origin tests can tell them apart. Your eye at a dinner table in the US generally cannot.