Thursday, 29 December 2016
Tuesday, 27 December 2016
|Alexandrite undergoes dramatic shifts in color depending on what kind of light it's in. A variety of Chrysoberyl, alexandrite's color-changing properties is due to an exceedingly rare combination of minerals that includes titanium, iron and chromium. Originally discovered in Russia’s Ural Mountains in the 1830s, it’s now found in Sri Lanka, East Africa, and Brazil.|
Fine, gem quality material is exceptionally rare and valuable. Alexandrite's mohs hardness is about 8.5.
Thursday, 22 December 2016
|Cartier Magicien High Jewelry Panthère Asymétrique. The case and bracelet is set with 64 baguette-cut diamonds totaling 8.10 carats, 397 brilliant-cut yellow diamonds totaling 3.22 carats, 186 brilliant-cut orange diamonds totaling 0.83 carats, 315 brilliant-cut diamonds totaling 1.78 carats. In all nearly 1,000 diamonds and 14 carats.|
Wednesday, 21 December 2016
|Sotheby’s sold $29.7 million worth of jewelry at two auctions in New York. A diamond ring from the collection of philanthropist Marjorie Fisher turned out to be the most expensive item. The marquise-shaped, 18.04-carat, D-color, VVS1-clarity diamond fetched $1.8 million, or $102,134 per carat This price surpassed a pre-sale estimate of $1.25 million to $1.75 million.|
A 18.10-carat, D-color, VS1-clarity diamond ring found a buyer for $1.5 million, or $80,249 per carat. Separately, a cushion-cut, 10.19-carat, D-color, internally flawless diamond went for $1.3 million, or $130,765 per carat.
|The Magnificent Jewels sale that took place on Dec. 9 at Sotheby’s New York marks the last jewelry auction of 2015. The auction brought in $52.2 million.|
The top lot was a 25.87 ct. sugarloaf cabochon Kashmir sapphire and diamond ring that sold for $5.1m, exceeding its high estimate of $4.5 million. A diamond necklace created by Van Cleef & Arpels in 1939 for Queen Nazli of Egypt made $4.3 million.
Pair of white gold, chalcedony, sapphire, and diamond cuff bracelets by Suzanne Belperron sold for $526,000
A platinum and diamond brooch by Bvlgari sold for $1.75 million, far exceeding its high estimate of $700,000.
A 38.27 ct. emerald-cut diamond ring sold for $4m
Tuesday, 20 December 2016
The Harrods Diamond is a 228.31 carat pear-shape stone graded G colour with VS1 clarity - a rare specimen and one of the largest diamonds of our times. A quality diamond of over 100 carats is impressive; over 200 carats puts the stone into another league.|
It appears that the stone has been cut recently, suggesting that the diamond that emerged from Harrods was a rough. The size of the rough and its provenance is anyone’s guess. The largest white to recently come to auction is an 118 carat D colour Flawless diamond that broke records in Hong Kong in 2013 when it sold for $30.6 million.
Monday, 19 December 2016
|Cartier Bird of Paradise Brooch with 20.22-carat pink sapphire and six padparadscha sapphires.|