When we think about gemstone jewellery making, there are always precious stones like sapphires, diamonds, emeralds, and ...

On Wednesday, the pink star diamond, all 59.6 carats, sold for more than $83-million at auction at Sotheby’s. German gemstone dealer Paul-Otto Caesar’s collection of loose gemstones contain ...

Precious is part history, part travel memoir, and part declaration of love towards gems. Like an overflowing jewellery box, its pages are bursting with stories of the sumptuous and luxurious, as ...

German gemstone dealer Paul-Otto Caesar’s collection of loose gemstones contain similarly pretty pink specimens — like twinkling blush and deep rose kunzite — at least as unusual.