Gemesis Synthetic Diamonds
Gemesis Adds White to Their Diamond Production
As one of the early producers of synthetic diamonds, Gemesis has worked to build their brand primarily in fancy yellow diamonds produced by a HPHT (high pressure, high temperature) process at their laboratory in Sarasota, Florida.
In November of 2011, Gemesis Corp. announced their attention to produce and sell lab-grown white stones directly to consumers starting in early 2012.
In a recent interview, Gemesis President and Chief Executive Officer Stephen Lux indicated the second quarter or early third quarter for the launch of large-scale public distribution of the Gemesis lab-grown whites. The line of diamonds will be sold via a new web site
“Yes, there’s been a shift in the timeline. It’s taken us longer to get the right consumer experience that we want to create in terms of bringing it to the public. This just isn’t about rushing to market and getting something out there.”
Lux claimed that Gemesis has been selling lab-grown white diamonds as large as 1.11 carats directly to consumers who telephone Gemesis headquarters. Lux was a bit vague on how many synthetic whites the company has sold via telephone orders.
“It’s not one or two, and it’s not 5,000,”
Gemesis has also created a collection of manufactured white & yellow diamond jewelry that is currently being photographed for their new web site.
A recently released report from GIA confirmed that the lab had recently graded a variety of Gemesis manufactured white diamonds.
The May issue of Gems & Gemology published a report by Wuyi Wang and Tom Moses about examining 16 CDV (chemical vapor deposition) diamonds marketed by Gemesis. Some of the diamonds graded colorless or near colorless.
Most (15) of the diamonds submitted for grading were round brilliants from 0.24 carats to 0.90 carat. The diamonds were all "Type lla" and graded from "IF" to "VVS".
The report added
- A “strong suggestion” that the lab diamonds heat been treated after growth. Probably to improve color and transparency
- a notable feature of the lab-grown diamonds was their weak to moderate green fluorescence in short-wave UV radiation and their characteristic growth striations.
“Although the quality of CVD synthetics continues to improve, these new products can be clearly separated from natural diamonds,”
