Chow Tai Fook Jewellery Group

Chow Tai Fook Jewellery Group Limited (周大福珠寶集團有限公司), is an affiliate of Chow Tai Fook Enterprises Ltd., a Hong Kong-based company engaged in the property development, hotel, casino, transportation, jewelry, port and telecommunications businesses. It is ultimately owned by Cheng Yu Tung's Family.

10.58kg gold

17kg gold

24,928 grams of gold

16.27 carat emerald cut IF Fancy Pink diamond ring

12.13 carat cushion modified brilliant Fancy Purplish-Pink

Hong Kong luxury jeweler Chow Tai Fook unveiled an incredible necklace designed from the twinkling progeny of the 507.55-carat Cullinan Heritage rough diamond. The massive diamond, which was purchased by the jeweler in 2010 for $35.3 million, yielded 24 D-flawless gems, including the necklace’s focal point, a perfect 104-carat round brilliant. The museum-quality piece is dubbed “A Heritage in Bloom.”

Chow Tai Fook enlisted the talents of jewelry artist Wallace Chan to assemble the family of “Heritage” diamonds, and a supporting cast of 11,500 addition precious gemstones, into a work of art that is estimated to be worth at least $200 million. The diamond total weight of the piece is 383.4 carats.

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Uber High Jewels

Bvlgari

Graff

Moussaieff

Van Cleef & Arpels

Van Cleef & Arpels

Van Cleef & Arpels

Cindy Chao

Oscar Heyman

Cartier

Van Cleef & Arpels

Chaumet

Van Cleef & Arpels

Brooch worn by Duchess of Windsor - Cartier

Yellow Diamonds

The pear-shaped Sun-Drop Diamond is the largest known Fancy Vivid Yellow diamond at 110.03 carats. It sold in November 2011 for $12.4m.

For centuries the most prized diamonds have been pure white or deep blue, red, pink, or green. Yellow diamonds have not been highly prized, and have been seen as inferior to white diamonds. Yellow diamonds are rare and are much more appreciated today. Yellow diamonds range from a pale delicate yellow to a pure rich canary or sunflower yellow. The term 'canary' diamonds has been incorporated into the modern term “Fancy Yellow”.  The GIA grades natural Fancy Yellow diamonds as Fancy Light, Fancy Yellow, Fancy Intense and Fancy Vivid.

The Graff Fancy Vivid Yellow diamond weighs 100.09 carats and is graded VS2 clarity. It set a world auction record for a yellow diamond in 2014 at $16,347,848

75.56-carat cushion modified brilliant-cut Fancy Vivid yellow diamond - $ 3.8m

Yellow diamonds may have secondary shades, primarily orange or brownish, which affect the clarity of the color. Greenish or pinkish secondary shades are extremely rare and valuable. Yellow diamonds are graded similarly to white diamonds, with the exception of color and cut. Unlike white diamonds, which are prized on the lack of color, yellow diamonds are graded for clarity of color. Fancy Vivid Yellow grades are very rare.

The Tiffany Yellow Diamond was a 287.42 carat rough.  It was cut to 128.54 carats in a cushion shape with 90 facets to bring out the brilliance of the stone.

The Florentine Diamond is almost 140 carats, light yellow with green undertone. It's location is unknown.

The Incomparable is the largest yellow diamond and third largest cut diamond in the world at 407.48-carats. It is graded as flawless fancy deep brownish-yellow.

At 234.65 carats, the De Beers is the seventh largest faceted diamond in the world. After its display in Paris the Maharaja of Patiala bought the stone. In 1928 Cartier set it as the centerpiece of the Patiala Necklace.

The biggest diamond ever found in North America was unearthed by Dominion Diamond Mines and Rio Tinto Group. The 552.74 carat yellow gem quality stone was found at the Diavik mine and is among the 30 largest diamonds ever discovered.

Mountain Province Diamonds tendered a 60.59-carat, fancy vivid yellow rough diamond last year.

Black Opal

In the first century A.D. Pliny wrote of the opal, "for in them you shall see the living fire of the ruby, the glorious purple of the amethyst, the sea green of the emerald, all glittering together in an incredible mixture of light", and later Shakespeare was to describe it as the "Queen of Gems". Due to its colour play the opal has been subjected to many superstitions and myth. Opal was said to ward off diseases and for this reason was worn in amulets. In Roman times it was included in the crown of the Holy Roman Emperor.

Opal, from the Greek, "Opallos", meaning 'to see a change (of colour)', is a formation of non-crystalline silica gel. Millions of years ago, the gel seeped into crevices and cracks in the sedimentary strata. Through eons of time and through nature's heating and moulding processes, the gel hardened and can today be found in the form of opals.

As the sea regressed, a rare episode of acidic weather was taking place, exposing pyrite minerals and releasing sulphuric acid.

Black opal is the rarest and most valuable. It is generally found as a bar of various colours forming natural water horizontals in dark grey to black "potch nobbies" or "nodules". The unique patterns are as complex as an artist's imagination. 95% of the world's supply of this radiant, dark lustrous gem is mined at only two pinpoints on the globe - Lightning Ridge and Mintabie, Australia. Between 100 million and 97 million years ago, Australia’s vast inland sea began retreating.

The world famous black opal field of Lightning Ridge was discovered in 1903 and is still producing gems.

As the surface of the basin dried further and cracked, silica-rich gel became trapped in the veins of the rock. Over eons, the silica solidified to form opals. Coober Pedy is often called “The Opal Capital of the World.” The discovery of gem opals sparked a rush of mining activity that has generated top-quality gems for the past 100 years.

Coober Pedy, an Aboriginal name meaning "White man in a hole", adequately describes the mines and miners' dwellings - burrows dug into the scarp, in order to escape the soaring temperatures of the day and the freezing winds at night.

Billed as the “finest opal ever,” the Virgin Rainbow made its world debut at the South Australian Museum in Adelaide as the centerpiece of a larger exhibition to commemorate the centenary of opal mining in Australia.

Veteran miner John Dunstan is credited with discovering the Virgin Rainbow in the desert soil of Coober Pedy in South Australia in 2003. Dustan has mined opals for 50 years, but the internal fire of the Virgin Rainbow is unlike anything he’s ever seen.

Gibber plain near Coober Pedy

Dustan explained that the Virgin Rainbow is a Belemnite pipe, which is essentially an opal that formed in the skeleton of an extinct ancestor of the common cuttlefish. As Dustan cleaned it off, he realized he made a once-in-a-lifetime discovery. “I knew it was one of the best ever,” he said. “You’ll never see another piece like that one, it’s so special.