The rarest gemstones in the world are extraordinary treasures formed under rare geological conditions, making them highly sought after for t...

Discover the world of gemstones and fine jewellery with Diamond Buzz® – your expert guide since 2018.

By Erika Winters 122.52-carat blue diamond recovered at the Cullinan mine Petra Diamonds announced the recovery of a 122.52-carat blue diamond at the Cullinan mine in South Africa. The diamond […]

The 102.34 carat rock, cut from a stone mined in Botswana, has been hailed as the 'rarest white diamond' ever to come to market. It is on display at Sotheby's Diamonds in London.

Blue diamonds are among the most coveted and rare gemstones in the world. Their captivating hues and exceptional brilliance make them a favourite for collectors and jewellery enthusiasts alike. This article delves into the historical roots, characteristics, and value of blue diamonds, providing an in-depth understanding of these magnificent gems.

View auction details, art exhibitions and online catalogues; bid, buy and collect contemporary, impressionist or modern art, old masters, jewellery, wine, watches, prints, rugs and books at sotheby's auction house

Spinel is a rare gemstone that often appears flawless and comes in a range of beautiful colours. It is also the fourth most durable gemstone, with a rating of 8 on the Mohs scale, ranking just behind sapphire, ruby, and diamond.

Diamonds which have not yet been cut are referred to as 'rough' or 'raw' diamonds. To identify whether the stone you have is a diamond, you can do a quick visual evaluation to rule out other gemstones. From there, you'll want to perform a...

Marvellous selection of exquisite and rare green and blue diamonds with variations in their tone, hue and saturation from Novel’s…