Remain vigilant on undisclosed diamond!
It is impossible for even the most experienced
Gemmologist to be able to detect LGDs
definitively by eye, or with standard desktop
equipment!
AnchorCert
Gem Lab encourages the jewellery trade to remain vigilant, as they report an
increase in the number of Lab-grown diamonds (LGD) being identified. In the context Birmingham
Assay Office said to remain vigilant.
Lab-grown
diamonds are growing in popularity with consumers, for a range of motivating
factors including ethical considerations and price. Lab-grown diamonds are
being produced world-wide not just by small private companies but also larger
dealers such as De Beers’ Lightbox, Swarovski and Cred Jewellery; all focused
on leveraging the commercial benefits of lab-grown diamonds for their customers
and businesses as an alternative.
It
is impossible for even the most experienced Gemmologist to be able to detect
Lab-grown diamonds definitively by eye, or with standard desktop equipment
because the chemical and optical properties are the same as natural diamonds. Definitive
identification requires specialist testing equipment as used at the Birmingham
Assay office, by their experienced team at their in-house grading facility,
AnchorCert Gem Lab.
Commenting
on Lab-grown diamonds, Operations Director, Carla Good fellow, said: “There
have been instances of undisclosed coloured lab-grown diamonds submitted as
natural stones. A specific example was a
0.71 carat uninscribed pink diamond submitted and found to be lab-grown
following testing. The customer had secured the stone, believing that the stone
was 100% natural.”
She
added “It’s critical that retailers and buyers are diligent and aware of
services which are available to them to help make selling of both kinds of
stones clear, safe and consumer friendly.
Our trusted Gem Lab can support suppliers, wholesalers, retailers and
consumers alike. If ever you are unsure, or your customer demands it, we can be
on hand to help.”
Senior
Gemmologist, Krishna Powar said: “One of our experienced jewellery valuers in
SafeGuard had suspicions about a large multi-stone item and wanted a second,
technical confirmation so referred the item through our Gem Lab, the item
turned out to be lab-grown.”
She
added “AnchorCert Gem Lab is a great benefit to SafeGuard; shared knowledge and
experience means we can provide customers with definitive outcomes on items
which are being valued. If detected the difference of the valuation can be
significant, based on the gemmological report specifying if a stone is
synthetic, natural, treated etc.”
In
September 2018, De Beers released a screening device called SYNTHdetect. It is specially designed for testing stones
in mounted jewellery but can also be used to test loose stones. The Birmingham Assay Office will be launching
their SYNTHdetect service later this month.
They
will also be hosting the Synthetic Diamond Detection Course during March to
support De Beers’ continued efforts to underpin consumer confidence throughout
the trade.
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