Friday, 15 February 2019

Van Cleef and Arpels - The Ballerina Brooch

The beginnings of Van Cleef & Arpels’ iconic ballerina clips sprang from Louis Arpels’ passion for classical ballet and opera. The first group of ballerinas faces were always represented by a rose-cut diamond. The dancers’ costumes also featured mostly rose-cut diamonds with rubies, emeralds and sapphires.

The first ballerina clips were produced in the early 1940s. These creations were enthusiastically received by wealthy American clients who saw the ballerinas as symbols of hope and joy for better days to come.

The Camargo Brooch, 1942
The house has produced many prized ballerina pieces.




Thursday, 14 February 2019

Alrosa unveils heart shaped rough diamond

Alrosa (MCX:ALRS), found a heart-shaped rough diamond at the Udachnaya kimberlite pipe in Yakutia, eastern Russia. The stone weighs 65.7 carats.

The company has also put a pink oval gem weighing 14.83 carats on display — the largest of its kind ever found in Russia. The diamond was found in 2017 at the Ebelyakh deposit in Yakutia.

Wednesday, 13 February 2019

185-carat Jacob diamond leads Hyderbad jewel exhibition

Tight security will be in place at the National Museum in New Delhi as it will exhibit the priceless jewellery collection of the Nizam of Hyderabad. 173 items will be placed in more than 25 showcases. The 185-carat Jacob diamond is among the treasures.
Hyderabad's last NizamThe stone is named after Alexander Jacob, the merchant who sold the diamond to Mahbub Ali Khan. (Nizam of Hyderabad in 1884) There was no written contract for the sale. If the Nizam liked it, he would simply say pasand (approved) if not, napasand (rejected). And napasand it was. A clever negotiating technique. Ultimately the Nizam was awarded the diamond for almost half of his original offer. It was several years after the death of his father that the last Nizam, Osman Ali Khan, found the Jacob Diamond in the toe of his father’s shoe. He used it as a paper weight for years until the diamond's true value was realized and it was stored away with other treasures. The diamond was purchased by the Government of India from the Nizam's trust for an estimated $33 million in 1995, along with the other Jewels of The Nizams. This was surely a bargain for the ages.
See ----->Jewels of the Nizam of Hyderabad

Tuesday, 12 February 2019

The 'Kimberly Red' Diamond

A 1.77-carat, radiant-cut, fancy deep purplish-pink diamond that didn’t get sold at the Argyle Pink Diamond tender in 2008 was purchased and recut into a 1.61-carat, radiant-cut, fancy purplish-red stone in 2009.

The GIA notes that in the past decade, only one other diamond larger than 1.50 carats has been graded as “fancy purplish red”. Taiwan-based Jurassic Inc. showcased the 'Kimberley Red' diamond in 2017.

Sunday, 10 February 2019

Gem Diamonds lands a keeper from Letšeng

A high-quality 13.33 carat, pink colour Type I diamond was recovered from the Letšeng mine in Lesotho on 7th February 2019.

Letšeng is the highest-dollar-per-carat kimberlite diamond mine in the world.

Friday, 8 February 2019

Thursday, 7 February 2019

Mandarin Spessartite Garnet

Mandarin Spessartite Garnet is a rare form of orange garnet colored by manganese.

The combination of vivid color and high refractive index make spessartite garnet one of the most brilliant stones in the world of colored gems. Its hardness is around 6.5 - 7.5 on the Mohs scale, making it ideal for jewelry.
The gems occur in a range of colors from yellowish orange to reddish orange and orange-red. The pure orange, known as mandarin or fanta orange, is very rare and has been found in only a few deposits in Africa, notably in Nigeria.

Top spessartites are highly sought after by gem collectors and are considered investment grade. Very little in the way of new material has been found recently.
The prices and value of spessartite garnet varies according to the size and quality of the gemstone. Color and clarity are the most important factors. Vivid orange is the most valuable. The reddish and orange-red are also valuable in fine quality. Gems with a distinct brownish hue, or heavily included stones, are less valuable.

Spessartites are not currently enhanced by any method.
Harry Winston

Wednesday, 6 February 2019

Harry Winston - Candy Box

Pink Spinel with Tsavorite Garnets, Sapphires and DiamondsThe Winston Candy Box collection features fancy-colored center stones paired with a combination of diamonds and gems in complementing shades.

The collection features the finest mandarin garnets, rare tourmalines, pastel sapphires, and spinels.

Green Tourmaline with Yellow Sapphires, Peridots and Diamonds

Pink Sapphire Ring with Rubies

Mandarin Garnet with Turquoise and Diamonds

Red Spinel with multi-colored Sapphires and Diamonds

Tsavorite Garnet with Yellow Sapphires, Mandarin Garnets

Red Spinel with multi-colored Sapphires and Diamonds

Diamond, Sapphire.

Tuesday, 5 February 2019

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 will tender a 60.59-carat, fancy vivid yellow rough diamond next month.