Monday, 30 November 2020

Spinel of Mahenge, Tanzania

In 2007 farmers in Mahenge, Tanzania found a giant spinel crystal weighing 52 kg. The spinel displayed a vibrant pink color now famous from Mahenge Spinel. The crystal was highly included, but large chunks of top quality stone were able to be cobbed off. Thousands of carats of gem quality gems were cut in Thailand and distributed. From this point on Mahenge Spinel was in the spotlight as one of the world's most vibrant gemstones.
Spinel is sought after by gem connoisseurs, and well-formed spinel crystals are in high demand. Red spinel range from orange-red to purplish red, with pure red considered the finest.

A top-quality 5 carat red spinel might sell for a tenth of an equivalent-quality ruby. Pink spinel often sells for less than pink sapphire.
For centuries, spinel has been confused with ruby. Spinel is often found in the same deposits as ruby. Now, with modern testing techniques, the two stones are easily identifiable.What sets spinel apart is it’s durability. It sits at an 8 on the MOHS scale, making it ideal for daily wear jewels.

Thursday, 12 November 2020

14.83-carat 'Spirit of the Rose' makes $26.6m

‘The Spirit of the Rose’, is the largest diamond of its kind to be ever be offered at auction. The diamond was extracted from the Ebelyakh deposit in the Republic of Sakha in the northeast of Russia in July 2017.

Alrosa is sold the truly spectactular stone November 11, 2020 for $26.6m.

Wednesday, 4 November 2020

Christie’s Magnificent Jewels

The top lot at Christie’s Nov. 10 Magnificent Jewels sale is expected to be a pair of multi-stone diamond earrings. Two fancy intense pink marquise brilliant-cut diamonds topped off with a fancy grayish-blue pear brilliant-cut diamond of 2.06 carats and a fancy intense blue pear brilliant-cut diamond of 2.05 carats. Beneath are two pear-shaped brilliant-cut D-flawless type IIa diamonds of 10.06 and 10.03 carats. The earrings are estimated between $2.7m and $3.8m. Also up for grabs is a 3.96-carat fancy deep blue diamond in a pear modified brilliant-cut.
The ring is estimated between $1.8 to $2.5m.