Even GIA doesn’t have the answer of Mystery Diamond Color. There are around 500 diamonds with uncommon color which is marked as Mystery Diamond by GIA.
The Gemological Institute of America reported that “as many as 500 diamonds may have been subjected to a new mystery color treatment that temporarily improved the stones’ color as much as three grades.”
GIA believes that the treatment temporarily masks diamond’s body color, resulting in a color grade that can be up to three grades higher than it would be normally.
According to spokesperson Stephen Morisseau, GIA first became aware of the tricky treatment after grading some 500 stones submitted by Israeli manufacturers over a series of month.
Mr. Morisseau says that “We reasonably believe these stones were treated in some way” and he also added that “We don’t know what the treatment is, we are actively researching it?”
GIA said in lab alert “We ask anyone who has purchased or holds these diamonds to please resubmit them to any GIA location for review. GIA will expedite the service, and no fee will be assessed.”
L.Y.E Diamonds, E.G.S.D. Diamonds, Romok Abramov, and Yair Matatov these four companies are banned by GIA. After this action by GIA only one company replied which was Romok Abramov? Abramov says ““All the stones mentioned in the GIA report are not mine, I Never saw any of those stones and don’t have any idea if they were treated.”
The World Federation of Diamond Bourses involved and sent statement expressing concern about the incident. The president of WFDB Mr Ernie Blom said that “This is clearly unlawful behavior, we will have no tolerance whatsoever for this type of alleged illegal activity. We are pleased that the GIA publicized this development so that diamantaires can be on their guard.”
A Russian laboratory-grown diamond manufacturer, New Diamond Technology, is claiming it has produced a 5.11-ct diamond, the largest man-made, polished, near-colorless stone ever produced.
According to the manufacturer, the unenhanced radiant-cut type ‘IIa’ diamond, produced by the high-pressure, high temperature method (HPHT) bears a K SI grade but hasn’t yet been sent to a lab.
This process is called Microwave Plasma Chemical Vapor Deposition, where carbon atoms are layered on top of an initial diamond ‘seed,’ fast-tracking a natural process lasting many millennia to a matter of months. And because these stones are lab-made, they’re good for the environment and are free of the ‘blood diamonds’ stigma that’s so tainted their traditionally-mined counterparts.
Diamond Experts familiar with diamond growing, say that it is an impressive achievement, but wondered whether it could be repeatable and also questioned what the stone would fetch commercially.
New Diamond Technology says it has a “new approach” that allows it to produce lab-grown gems with higher colors and clarity from its factories in Russia and Hong Kong. It said that it can produce gems ranging from 4 to 11 carats.
Company President Tamazi Khikhinashvili says that their diamonds are “more affordable” as compared to natural diamonds. He says the company has sold lab-grown gems to customers in Europe, Asia, and the United States.
Crater of Diamond State Park is 911 acre Arkansas State Park in Pike County, Arkansas. Out of this 37.5 acre which is world’s only diamond bearing site open to public. More than 75,000 diamonds have been discovered in the field since 1906 which includes worlds only perfect diamond discovered, the Strawn-Wagner Diamond.
Dean Filppula holding his two-carat diamond (Photo: Crater of Diamonds State Park)
It was a lucky day for Mr. Dean Filppula, an offshore steward from Shreveport, LA who visited the park during vacation after a rainstorm. He found “wedge-shaped light yellow stone about the size of an English pea” in the West Drain area of the park. He is calling this 2.01 Ct diamond after his mother’s initials as “Merf Diamond”.
Park interpreter Wayman Cox says Mr. Filppula was at right place at right time. It rained heavily before his visit, which washed loose soil from surface uncovering the large yellow gem. His store is very familiar to many visitors in past who have found diamonds.
Mr. Filppula found his 20th diamond, but it is largest one found so far in 2015. He is planning to sell the diamond.