Guide to Growing Diamonds: Techniques & Benefits

HPHT in brief

High Pressure High Temperature (HPHT) recreates conditions in the earth’s mantle so carbon can crystallize on a diamond seed over weeks to months. Color and timeline depend on chemistry, equipment, and the target size.

Why it matters for memorial diamonds

Growth is only one chapter—purification, custody, cutting, and certification matter just as much for a memorial piece. Ask providers how each stage is documented.

Explore RisenGem

See The Process and Gallery for examples of cuts and colors.