Read more about the article Identifying isotropic vs anisotropic gemstones
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Identifying isotropic vs anisotropic gemstones

When the Great Imperial Crown was made for the coronation of Catherine the Great in 1762 the court jewelers believed they were topping over 5,000 diamonds and pearls with an enormous 398 carat ruby. But it was never so. They had been fooled by a charming imposter.

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Read more about the article The ‘Secret’ of black diamonds
Photo credit: People.com

The ‘Secret’ of black diamonds

History’s most famous black-diamonds may be those included in the Fantasy Bra worn by Adriana Lima at the 2008 Victoria’s Secret fashion show.. That's perfectly fitting, since black-diamonds have a “Secret” of their own, as we will reveal below...

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