Magnificent Jewels

Harry Winston, 1959

Fancy vivid yellow cushion-shaped diamond, 91.81 carats, VS2. $4,303,300

A cushion-shaped sapphire weighing 118.88 carats $4,191,448

Octagonal step-cut emeralds, 13.56 and 12.91 carats. $3,967,745 Circular cabochon emerald drops of 27.52 and 25.91 carats. $1,083,565

A jadite, ruby and diamond 'Serpenti' watch/bracelet by Bvlgari, dial signed by Piaget. $340,549

50.48 carats, D colour, Internally Flawless, Type IIa. $7,882,559

Art deco ruby and diamond necklace. Circa 1930s. $544,279

Sapphire and Diamond Bracelet, Van Cleef & Apparels, France circa 1935. 3.1m.

Multi-gem 'Ballerina' brooch set with sapphires, rubies and diamonds. Van Cleef & Arpels, 1940s. $232,692

Multi-gem flower brooch by Cartier. $37,450

Marquise and baguette-cut diamond dragonfly with a cultured pearl head and circular-cut sapphire wings, Van Cleef & Arpels, circa 1965. $ 10,000

A fancy intense blue diamond ring set with a pear-shaped fancy intense blue diamond weighing 3.17 carats. Sold for $2,521,373 ($795,386 per carat)

A ruby, sapphire and diamond bar brooch by Van Cleef & Arpels. Set with an oval ruby weighing 6.02 carats, between two cushion-shaped sapphires of 10.44 and 13.44 carats. Sold for $2,521,373

A fancy brownish orange pink diamond ring set with a pear-shaped diamond of 10.58 carats. Sold for $2,162,600 ($204,405 per carat)

Pair of sapphire and diamond ear clips, JAR. US$584,002

Picchiotti

Picchiotti jewellery came alive in 1967 in the small Italian district of Valenza, where Giuseppe Picchiotti opened up his workshop to create his own collection of jewellery. Half a decade later, his name is known worldwide for his miniature works of art. Each piece of Picchiotti jewellery is designed and crafted entirely in house, assuring exquisite and timeless design.

Laurence Graff - The King of Diamonds

Laurence Graff has earned the nickname the ‘King of Diamonds’. He is one of the most successful jewellers and gem dealers in the world. Graff has bought and sold some of the most iconic stones known over his long and glittering career. In 1960 he founded the Graff Diamonds Company Limited in Hatton Garden, London. The venture was an instant success.

Laurence Graff and François Graff

Graff’s The Royal Star of Paris features a 107.46 carat Fancy Yellow cushion-cut diamond, suspending the Graff Perfection, a 100 carat D Flawless pear-shaped diamond drop.

Le Collier Bleu de Reve necklace features a 10.47 carat Fancy Vivid Blue Internally Flawless briolette diamond, above a 4.22 carat old-mine Colombian emerald.

Sapphire and Diamonds “Secret” Tassel Brooch. A pavé diamond watch face is concealed suspended from a platinum chain.

10.62 carats fancy diamonds crossover ring. 5.01 carat Fancy Brown Orange Pink Internally Flawless pear shape diamond and a 5.05 carat Fancy Vivid Orange Yellow pear shape diamond.

Graff tassel necklace, featuring pigeon's blood Burmese rubies and white diamonds

Graff's Diamond Flower Brooch features an 8.97 carat pear-shaped Fancy Vivid Pink Orange diamond

24.78 carat Pink Emerald-Cut Graff Diamond

“The Golden Empress” a 132.55-carat Fancy Intense cushion-cut yellow diamond set on a necklace with 30 other yellow diamonds.

Graff Rhythm platinum necklace featuring rubies and diamonds

The Golden Empress

Wittelsbach Graff

Bespoke Diamond up for grabs

The bespoke diamond has 2,000-3,000 facets, a number that Sotheby's says has never been seen before in a single piece. It was cut using a micrometer-thick water jet and a laser beam by Diamond Foundry. The one of a kind ring will be auctioned on December 5, with the proceeds donated to (RED), a charity dedicated to fighting HIV/AIDS. The ring is expected to fetch $150k to $250k. It will be cut to fit the winning bidder.

Jewel Thieves steal Portland Tiara

The Portland Tiara was stolen in a heist on the Welbeck Estate in Worksop, Nottinghamshire. It was created for Winifred, Duchess of Portland, to wear to the 1902 coronation of King Edward VII. The tiara is centred on the Portland Diamond, which is flanked by two diamond drops and other pendant diamonds, all set in gold and silver. Almost certainly the Tiara will be broken apart and the stones sold.