Black is the colour that inverts every rule this library has taught. Everywhere else, inclusions are the enemy…
Our purple memo drew the line the trade most often blurs: purple and violet are separate GIA hues,…
Every coloured diamond category has a rarity story. Only one category has a rarity story with no footnotes:…
Why Natural Gray Diamonds Are the Quiet Colour With a Growing Following Gray sits apart from every other…
Orange is the colour the trade underestimates because it so rarely sees the real thing. GIA counts orange…
Purple is the aristocrat of a family we have already introduced. Brown, pink and purple diamonds all owe…
If you buy diamonds for a jewellery business, brown deserves a hard look this year — not as…
The rose cut is the antique that breaks every modern rule, and that is exactly why it has…
The Old Mine cut is the oldest of the antique cuts still in active demand, and right now…
.png){kind=small}
.png){kind=small}
.png){kind=small}
.png){kind=small}
.png){kind=small}