rough diamond

The Lugano Diamonds Butterfly Ring

Filed under: Jewelry

New from the house of Lugano Diamonds is this butterfly ring, designed to echo the beauty of nature and of summer year round. The ring consists of 2.53 carats of sliced rough diamonds, 1.44 carats of brilliant diamonds, and 18k gold in three colors. Sitting on a branch of black gold, the butterfly's wings are sliced rough diamonds framed in rose gold and brilliant diamonds, while the articulated antennae feature 0.57 carats of briolette-cut diamonds and can move a little. A truly beautiful statement ring to showcase your love of all things nature. $8,600

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Tags: butterfly, diamond ring, jewelry, lugano, lugano diamonds, LuganoDiamonds, ring, rough diamond, rough diamonds

Huge Diamond Sells For Over $35 Million

by Deidre Woollard (RSS feed) —

Filed under: Jewelry

Last fall we speculated that a huge 507-carat piece of rough diamond might sell for $30 million. The result was even bigger than anticipated. Petra Diamonds announced that the stone sold for $35.3 million which was the highest sale price ever for a rough stone, an impressive $69,557 per carat. Hong Kong-based Chow Tai Fook Jewellery Company Ltd. bought the rock which has been given the preliminary name "Cullinan Heritage," at a tender in South Africa. The stone is the 19th largest piece of rough unearthed in history and is exceptional both in terms of size and color and clarity.

It is believed that the buyers will seek to sell the stone in China. The rough stone could yield a "D-flawless" clear polished stone of 170-180 carats, a stone which could sell at a huge price. The diamond will be doubtlessly be scrutinized by teams of expert cutters and all possible strategies will be mapped and modeled before the first cut is made, a process which generally takes several months.

Gallery: Big Rocks, Big Bucks

Tags: cullinan heritage, cullinan mine, CullinanDiamond, CullinanHeritage, CullinanMine, diamonds, rough diamond, rough diamonds, RoughDiamond, RoughDiamonds

Is the Mega Diamond the Real Deal?

by Deidre Woollard (RSS feed) —

Filed under: Jewelry

Could a greenish stone the size of a coconut be the world's largest diamond? The BBC reports that a shareholder in an unnamed mine in South Africa has found the stone shown here. The stone is said to be about 7,000 carats, making it around double the size of the famous Cullinan Diamond. There is some question over whether the stone is a diamond. Brett Jolly, a spokesperson for the company, has said that the stone was taken to a bank vault in Johannesburg and would undergo tests.

So far the only evidence of the stone is a low resolution photo showing a stone that could be anything, another type of crystal or even glass. Not revealing where a stone of this size is found is common for security purposes. If this stone is genuine, it will be one of the most amazing finds in recent times.

UPDATE: The Telegraph reports that the stone, now dubbed the Green Giant is set to be examined by renowned gemologist, Ernest Blom, the president of the World Federation of Diamond Bourses.

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Tags: diamond, rough diamond, south africa

235-ct. Rough Diamond Found

by Nicole Weston (RSS feed) —

A 235-ct. diamond was discovered in a recently reopened mine in South Africa last month. The mine was closed 3 years ago after the firm running it declared bankruptcy. The rough diamond is octagonal in shape and reported to be of good quality, but its presence was astounding because the mine had averaged diamonds of 1.14-cts. in the past. A spokesman for the mine reportedly said "it is hard to set a value for the diamond because typical valuation measures fall away when diamonds reach a certain size."