Gemesis Diamond

Gemesis Diamond Company’s lab-created diamonds are certified by an independent third-party institute. IGI Laboratory.

What are Synthetic Diamonds?

Synthetic diamonds are sometimes referred to as laboratory-created diamonds, laboratory-grown diamonds, or cultured diamonds, and are manufactured diamond crystals produced by man, not nature.

Synthetic diamond can be optically and chemically identical to natural diamond.
Gem-quality synthetic diamonds are predominantly cubic and octahedral in the rough form. Impurities are common, but as the technology has progressed so the rough diamond crystals have improved. A diamond's hardness can vary depending on its impurities and crystalline structure.

Although synthetic diamonds have similar structure and chemical properties to a natural diamond, they can be conclusively identified by differences in atomic structure and trace impurities due to their different growth environment.

Colour zoning, inclusions, fluorescence and other properties of synthetic diamonds provide practical visual indicators using standard gemmological techniques and equipment, but conclusive identification requires advanced equipment and trained technicians in a laboratory.

Synthetic diamonds can sell at a fraction of the cost of natural diamonds, because they are made for less than it costs to mine a natural diamond. For this reason they are a viable alternative to natural diamond or less durable simulants.

DCLA does not certify synthetic diamonds, but laboratories that do opt to certify synthetic diamonds must clearly state on the certificate that the diamond is a laboratory-created, synthetic diamond.

There are currently two known processes for growing synthetic gem-quality diamonds: the High Pressure High Temperature (HPHT) method, and the Chemical Vapour Deposition (CVD) method.

The DCLA laboratory certificate is the only certificate guaranteed to have never certified or graded a synthetic diamond in Australia.

Source: DCLA