WE ARE DIAMOND COLOR ENHANCEMENT TURNKEY SOLUTION VETERAN:

High Pressure High Temperature (HPHT) annealing is the core technology that makes diamond color possibly permanently changed. Guilin Guide Superhard Material Co., Ltd. is the world leader in HPHT processing for diamond color enhancement including natural diamond and lab grown CVD diamond. Nothing is added and nothing is removed from diamond, just making diamond the best it could be.

What we provide: HPHT annealing turnkey solution; HPHT annealing core materials; HPHT annealing services.

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