GIA Identifies CVD Lab-Grown Diamond Subjected to Post-Growth HPHT Treatment

The 2020 Winter Editioin of GIA’s Quarterly Journal, “Gems & Gemology” reports of the submissiion of a round brilliant-cut, VS2 clarity, M-color diamond weighing 7.01 carats for grading, which on examination turned out to be a CVD lab-grown diamiond, the largest such diamond submitted to the Carlsbad Laboratory for identification and grading. The diamond was […]

15.81-Carat Pink Sakura Diamond May Fetch US$ 38 Million at Christie’s Hong Kong

Christie’s Auction House announced recently the holding of its live Hong Kong Magnificient Jewels Sale bearing No. 19860, on Sunday, 23 rd May, 2021, featuring an outstanding selection of exquisite gemstones, jadeite and stunning iconic signed pieces from famous jewellery houses, showcasing the very best of luxury. Top Lot of the Sale, according to the […]

Petra’s Cullinan Mine Recovers High-Quality 39.34-carat Blue Diamond

London-listed Petra Diamonds Ltd. Owners of the historic Cullinan Diamond Mine in South Africa, announced on April 1st, 2021, the recovery of a 39.34-carat, Type IIb blue diamond of exceptional quality, both in terms of its color and clarity, at the high-value extension of the old deposit, known as the Cullinan’s C-Cut Area. The Company […]

SRK Grading System for Diamonds, Approved by Manchester based Certification Agency “Alcumus ISOQAR”

Buddha Bhatta’s “Ratna Pariksha” an ancient treatise on the science of testing gemstones, as mentioned in Kautilya’s “Arthashastra” published between 323 and 299 BC, was used in ancient times to control the trade on pearls, diamonds and colored gemstones. Hence, the first grading system for diamonds, pearls and colored gemstones was developed by ancient Indians […]

GIA Issues New LGD Diamond Reports Including Information on Post-Growth Treatments if Any

In keeping with their October 13, 2020, Press Release, the Gemological Institute of America has started issuing new Lab Grown Diamond Reports (LGDR) with 4Cs color and clarity specifications instead of the descriptive terms and grade ranges, previously used for laboratory-grown diamonds. This is in keeping wiith GIA’s policy of protecting consumers as consumer interest […]

Gem Diamonds Ltd. Announces Full Year Results for Year Ending 31ST December, 2020

Gem Diamonds Ltd. (LSE : GEMD), owners of the Letseng Diamond Mine in Lesotho and the Ghaghoo Mine in Botswana, announcing its full year results for the year ending 31st December, 2020, on 11th March, 2021, said the Company realised a total revenue of US$ 189.6 million as opposed to US$ 182.0 million for the […]

Petra Diamonds Sell Recently Recovered 299-carat White Rough Diamond for USD 12.18 Million

London-listed Petra Diamonds Ltd, owners of the historic Cullinan Diamond Mine in South Africa, announced on 5th March, 2021, the sale at their Antwerp Tender, of a top-quality, 299.3-carat, white rough diamond recovered at their Cullinan mine in January, 2021, for a staggering US$12.18 million, to Stargems DMCC, Dubai-based arm of the Antwerp diamond supplier. […]

GIA REPORTS OF MORE IMPOSTOR DIAMONDS WITH FAKE INSCRIPTIONS

Following the discovery of a diamond simulant Moissanite with a fraudulent GIA inscription, at GIA’s Johannesburg Laboratory, South Africa, as reported in the 2020 Falls Edition of GIA’s Quarterly Journal, Gems & Gemology, released in mid-January, the Gemological Institute of America has reported more detections of “Impostor” diamonds with fake inscriptions. These diamonds were either […]

Lil Uzi Vert Mounts a 11-Carat Pink Diamond on His Forehead

Philadelphia-based, 26-year old, two-time Grammy nominee, US rapper Lil Uzi Vert, whose real name is Symere Bysil Woods and who has a special love for blings to boost his image, shocked millions of his followers on Instagram early February, when he displayed his latest fashion stunt, by posting images and video of him with a […]

GIA Detects for the First Time a Diamond Simulant with Fradulent Inscription

The 2020 Falls Edition of GIA’s Quarterly Journal, Gems & Gemology released in mid-January reported a sensational news of the discovery for the first time of a fradulent GIA inscription on a diamond simulant Moissanite, at their Johannesburg Laboratory in South Africa. The diamond simulant was presented to the GIA Johannesburg Laboratory as a 1.02-carat, […]

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