Thursday, 31 January 2019

Imperial Topaz

Topaz is a silicate mineral of aluminium and fluorine.

Pure topaz is colorless and transparent but is usually found tinted by impurities; typical topaz is wine, yellow, pale gray, reddish-orange, or blue brown.
There is no official standard for imperial topaz. Some dealers use the term for colours that are orange to pink to red to purple, others reserve the term for certain saturated shades.

It’s the colour, not the term “Imperial” that gives topaz its value. Imperial Topaz, with its distinct peach, pink, orange or champagne hues, is the rarest topaz variety and the most valuable.
The primary source is the Ouro Preto mines of Minas Gerais, Brazil. Deposits were also found in the Urual Mountains in Russia. Imperial topaz was named in honor of the Russian monarchy who prized it. Today imperial topaz is classified as a very rare collector's gem.

The price and value of imperial topaz vary depending on the size and quality of the gemstone. True imperial topaz must be untreated. Irradiated stones are not regarded as genuine imperial topaz.
The price of imperial topaz can vary widely. The lightest varieties cost $450 - $800 per carat, while those with the deepest and finest color could cost $20,000 per carat.

Wednesday, 30 January 2019

The Amazing Wendy Yue

Rhodium-plated 18K yellow gold scorpion ring
Wendy Yue jewelry pieces are works of art. With their intricate design and hand craftsmanship, each piece is exclusive. Exquisite, wearable objets d'art, they are meticulously crafted.

Oceanic Opal Ring

Tuesday, 29 January 2019

Martin Katz - Jewels, Like No Other

Australian black red opal ring set in 18K white gold; micro-set with 234 white diamonds and 377 red and orange sapphires, 36 tsavorite garnets and 5 green tourmalines.
For over 25 years, Martin Katz has married exquisite gemstones with meticulously designed settings to create extraordinary jewelry.

Katz, 58, has long had a passion for gems. In college, he built a small business selling puka shell and silver jewelry to sorority girls. After graduation, he moved to California and began working in the trade. Eventually, he launched himself as a private jeweler.
37.18 carat Tanzanite 
Becoming a designer wasn’t part of the plan. “Designing came out of filling a void,” he says, for clients seeking a specific piece to round out a vintage collection. “I’d say, ‘If we could make one, we’d take the top of this one and the shape of that one.’ That’s how it all started.”

His reputation grew, and before long, his contemporary designs were selling better than the vintage.

White gold ring with a 4.25ct oval pinkish orange padparadscha sapphire.
Katz’s pieces start at $2,500, but the core artistic collection ranges from $25,000 to $125,000.

He’s renown for his expertise in colored stones; paraiba tourmaline, red spinel, and alexandrite.

Cushion-cut Mandarin garnet of 10.25 carats encircled by a micro-set border of orange sapphires and band with white diamonds with 2 half-moon diamond sidestones.

Cushion-cut orange sapphire, 15.5 carats; set in 18K white gold, micro-set with 118 amethysts and 98 diamonds.

Cushion-cut sapphire, 10.95 carats; microset with 128 diamonds and 64 blue sapphires. Set in platinum.

Cabochon fire opal, 13 carats; 354 diamonds, 14 green tsavorite garnets and 179 orange-red sapphires.