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
Wednesday, 30 January 2019
Tuesday, 29 January 2019
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.
Monday, 28 January 2019
Thursday, 24 January 2019
|The Gemological Institute of America has studied the Indonesian specimen in detail, and issued a report and certificate authenticating it. According to the report, it's a real (not synthetic), unaltered, untampered precious opal, with a genuine insect inclusion. It's not a hoax. |
So how did it come about? Current theories about opal formation require water with a high silica content, and cracks and cavities.
| It may have formed from opalized wood, which is plentiful in Indonesia. Since wood is the source of amber, perhaps the insect-in-amber had been nestled inside a crevice in a piece of wood before opalization took place. Amber takes millions of years to turn to stone. (much amber is actually copal, the mid-point between resin and amber)|
Opal also takes a long time to form and solidify, so the unidentified insect could be very old.