Sunday, 20 May 2018

Padparadscha Sapphires

Prized throughout the ages, padparadscha sapphires are as beautiful and exotic as their name. No other colored gemstone compares to their unique mix of pink and orange.

The term padparadscha is derived from the Singhalese word for a salmon colored lotus blossom. Overall, padparadscha sapphires are pinkish orange in color, but vary in hue and tone.
The question of what exactly qualifies for the princely kiss of “padparadscha” is a matter of debate, even among experts.

Today, padparadscha is narrowly defined by gemologists as a Sri Lankan sapphire of delicate pinkish orange color. The original source for padparadscha is Sri Lanka (Ceylon) and purists today believe the term should be restricted only to stones from Ceylon.
Most lotus blossoms are far more pink than orange, and in ancient times, padmaraga was described as a subvariety of ruby. Today, some define the gem's color as a blend of lotus and sunset.

Fine stones have also been found in Vietnam’s Quy Chau district, Tanzania’s Tunduru district, and Madagascar.
A superb 28.04-carat Sri-Lankan Padparadscha sapphire made $2.4m in late 2017.

A 20.84 carat oval-cut padparadsha made $375,120 in 2013



Saturday, 19 May 2018

Chaumet Fine Jewels

Marie-Étienne Nitot (1750-1809) settled in Paris in 1780 after having served his apprenticeship at Auber, then jeweller to Queen Marie-Antoinette. His aristocratic clientele remained loyal to him until the French Revolution in 1789.

He later became the official jeweller of Napoleon in 1802. Nitot created the jewellery that would offer the French Empire it's splendour and power. He designed and set Napoleon’s coronation crown, the hilt of his sword as well as many other pieces for the court.

François Regnault Nitot took over his father’s jewellery House on his death in 1809 and continued his activity until the fall of the Empire in 1815. Napoleon’s exile caused Nitot, a fervent royalist, to withdraw from the jewellery House, selling the business.

French Tiara given to Josephine by Napoleon.
Chaumet was bought in October 1999 by LVMH. After an unsuccessful attempt to penetrate the American market in the end of the 1990s, the company opened stores in Asia to fuel growth. Chaumet is now part of the watch and jewellery brands that includes TAG Heuer, Zenith, Fred, Hublot, Montres Christian Dior, and De Beers Diamond Jewellers.

Fura Gems finds giant emerald at Coscuez mine in Colombia

Fura Gems (TSX-V:FUR), has found a 25.97-carat rough emerald at its Coscuez emerald mine in Colombia. The company says the gemstone is a “rare and exceptional” one, given its size, colour saturation and clarity.

It has been named the “ÄRE Emerald”, after a figure in ancient Colombian mythology responsible for the creation of emeralds in the country’s Boyacá region: the Fura and Tena mountains, as well as the Rio Minero River.

Friday, 18 May 2018

Paraiba Tourmaline

Tourmaline is a crystal boron silicate mineral compounded with elements such as aluminium, iron, magnesium, sodium, lithium, or potassium.

Tourmaline is classified as a semi-precious stone and comes in a wide variety of colours. Almost every colour of tourmaline can be found in Brazil, especially in the Brazilian states of Minas Gerais and Bahia. In 1989, miners discovered a unique and brightly colored variety of tourmaline in the state of Paraíba.
The new type of tourmaline, known as paraiba tourmaline, came in blue and green. Brazilian paraiba tourmaline usually contains abundant inclusions. It was found the element copper was important in the coloration of the stone. These cupriferous tourmalines are small, rare and precious.

Their turquoise to green colours are not duplicated in any other gemstone in the world.
Another highly valuable variety is chrome tourmaline, a rare type of dravite tourmaline from Tanzania. Chrome tourmaline is a rich green colour due to the presence of chromium atoms in the crystal; chromium also produces the green colour of emeralds.

Thursday, 17 May 2018

Elvis's Diamond Omega watch fetches $1.8m

A 1960 Omega watch that belonged to Elvis Presley sold for $1.8 million at an auction by Phillips, setting a record price for the Swiss watch brand. The 18-carat white-gold wristwatch sold for 18 times the high estimate. RCA Records gave Presley the watch as a commemoration for selling 75 million records.

In October, Phillips set the record for the most expensive wristwatch ever auctioned with the $17.8 million sale of a Rolex that once belonged to actor Paul Newman.

Tuesday, 15 May 2018

Sotheby’s Magnificent Jewels and Noble Jewels Sale

Sotheby’s Magnificent Jewels and Noble Jewels Sale was held in Geneva on May 15, 2018, at the Mandarin Oriental Hotel.

Highlights are two of the largest and purest white diamonds ever to come up for auction, both weighing over 50 carats. One diamond is a D-color, Flawless, Type IIa, round brilliant-cut weighing 51.71-carats. $9.2 million. The second diamond is also a D-color, Flawless, Type IIa diamond weighing 50.39 carats, but an oval brilliant-cut. $8.1 million.

The 6.16-carat, pear-shaped, ‘Farnese Blue’ is Fancy Dark Grey-Blue, SI1 Clarity. $6.7m.
Fancy Light Blue and Fancy Light Pink Ear Clips. 6.41 carats, suspending a fancy light pink diamond weighing 8.03 carats, the other  7.16 carats, suspending a fancy light blue diamond weighing 6.25 carats.  $4.4m
Cushion-shaped 'Royal Blue' Kashmir sapphire weighing 14.01 carats. $1.8m.
Modified brilliant-cut fancy vivid purplish pink diamond weighing 2.63 carats. $2.4 million.

Pear-shaped fancy purple-pink, SI1 clarity,  weighing 5.04 carats. $1.4 million.

Monday, 14 May 2018

Mandarin Spessartite Garnet

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

The combination of vivid color and garnet's 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