Showing posts with label White Gold. Show all posts
Showing posts with label White Gold. Show all posts

Sunday, May 9, 2010

Tanzanite : as a mineral

Tanzanite rough stone and cut stoneFrom Wikipedia, the free encyclopedia

Tanzanite is the blue/purple variety of the mineral zoisite which was discovered in the Meralani (Merelani) Hills of Northern Tanzania in 1967, near the city of Arusha. It is used as a gemstone. Tanzanite is noted for its remarkably strong trichroism, appearing alternately sapphire blue, violet, and burgundy depending on crystal orientation.

Tanzanite in its rough state is usually a reddish brown color. It requires artificial heat treatment to 600 °C in a gemological oven to bring out the blue violet of the stone.Tanzanite is a rare gem. It is found mostly in the foothills of Mount Kilimanjaro. The mineral is named after Tanzania, the country where it was discovered.

World's largest tanzanite

One of the most famous large tanzanite "Queen of Kilimanjaro",on 18 karat white gold

The world's largest faceted tanzanite is 737.81 carats.One of the most famous large tanzanites (242 carats) is the "Queen of Kilimanjaro". It is set in a tiara and accented with 803 brilliant cut tsavorite garnets and 913 brilliant cut diamonds. Because tanzanite is relatively soft, it is not usually set in necklaces and earrings, so the tiara is truly a rarity.The tiara is currently on display in the Gallery of Gold and Gems at the Royal Ontario Museum in Toronto, Ontario, Canada. The exhibition is from the private collection of Michael Scott, the first CEO of Apple Computers.

Factors affecting value: grading

There is no universally accepted method of grading colored gemstones. TanzaniteOne, a A rough sample of tanzanitemajor commercial player in the tanzanite market, through its no-profit subsidiary, The Tanzanite Foundation, has introduced its own color grading system. The new system's color-grading scales divide tanzanite colors into a range of hues, between blue violet and violet blue.

The normal primary and secondary hues in tanzanite are blue and purple not violet. Purple is a modified spectral hue that lies halfway between red and blue. Tanzanite is a trichroic gemstone, meaning that light that enters the stone is divided into three sections each containing a portion of the visible spectrum. After heating, tanzanite becomes dichroic. The dichroic colors are red and blue. The hue range of tanzanite is blue-purple to purple-blue.

Clarity grading in colored gemstones is based on the eye-clean standard, that is, a gem is considered flawless if no inclusions are visible with the unaided eye (assuming 20x20 vision).The Gemological Institute of America classifies tanzanite as a Type I gemstone, meaning it is normally eye-flawless. Gems with eye-visible inclusions will be traded at deep discounts.
source : wikipedia

Monday, November 9, 2009

White Gold Diamond 3-Stone Ring

Buy cheap 14k White Gold Diamond 3-Stone Ring (4 cttw, H-I, SI2-I1 Clarity), Discount 14k White Gold Diamond 3-Stone Ring (4 cttw, H-I, SI2-I1 Clarity) and all design Diamonds online shopping at buy cheap D Diamonds.blogspot.com









Description : 14k White Gold Diamond 3-Stone Ring (4 cttw, H-I, SI2-I1 Clarity)


This IGI-certified three-stone diamond ring is an elegant classic in gleaming 14 karat white gold.

Three round diamonds, with an impressive total combined weight of four carats, are mounted in prong settings and centered on a polished 14 karat white gold band. The basket settings allow light to filter through the diamonds, enhancing their sparkle and fire. The diamonds featured here are near colorless (H-I color) and have a minimum clarity of I1.

A three-stone ring is often given as an anniversary gift to symbolize your past, present, and future together. With its simple, traditional styling, this ring makes a beautiful gift for any occasion.



Friday, November 6, 2009

Blue Diamond

Buy cheap 14k White Gold Round Blue Diamond Stud Earrings (3/8 cttw), Discount 14k White Gold Round Blue Diamond Stud Earrings (3/8 cttw) and all design Diamonds online shopping at buy cheap D Diamonds.blogspot.com









Description : 14k White Gold Round Blue Diamond Stud Earrings (3/8 cttw)


Vivid blue diamonds are set in polished 14 karat white gold to create these striking stud earrings. The small round diamonds have been treated and enhanced to bring out their intense, vibrant blue color.

They have a fair cut and a total weight of 3/8 carat.

The diamonds are held securely in four-prong settings and featured on 14 karat white gold posts with friction back closures.

Natural blue diamonds , such as the famous Hope diamond, are extremely rare, but special methods of irradiating and heat treating the stones have allowed the production of intensely colored diamonds in a variety of shades, including blue.

Treated blue diamonds are very durable and have their own distinctive look, with a vibrant hue and a signature diamond sparkle.



Saturday, August 2, 2008

Blinged Out Bluetooth

Jewelry.com, 05/12/2008
Blinged Out Bluetooth

If you're not worried about little things such as a mortgage, bills, car payments, the price of gas or what your friends would say, Jewelry.com has found a little Bluetooth headset that might just be what you've never wanted.
Motorola knows that sometimes practicality can get rather staid, so they've thrown diamonds to the wind and come up with a bluetooth that every blinged out millionaire should have. The Motoral Motopure H12 is no ordinary headset. This one is made from either yellow or white gold and covered with 184 diamonds.
The price - a mere $17,000.


Tuesday, November 6, 2007

Jewelry Art Awards 2007 of Jewelry Artist Magazine

source : Jewelry Artist

Jewelry Artist is pleased to announce the winners of our 2007 Jewelry Arts Awards. Entries for our sixth annual competition were judged by Todd Reed, a self-taught goldsmith and metalsmith who has been exploring the use of rough diamonds in his award-winning, signature jewelry since 1992; Robert Diamante, a professional photographer who has been photographing jewelry for the craft industry since 1993; and Thomas Mann, a jeweler committed to both the artistic and business sides of jewelry making, who has been active in the contemporary craft movement for more than 30 years.

Congratulations to the winners and our thanks to the judges and everyone who entered.

Jewelry Arts Awards 2007 Winners

Miscellaneous Jewelry

First Place: Daniel M. Nagy - Best of Competition
(also First Place, Miscellaneous Jewelry) Frutto di Mare

14K yellow and white gold 353.5g, 3pcs Tahitian pearls 9mm semi baroque, 2pcs 10.5 round AAA grade 86 pcs, 1.659 ct. brilliant cut diamonds. Wax carved and chased shells, hand cut handpiece, and engraved gemstone buttons. Original electronics only; workable inner part is rebuilt based on design and requirements. 200mm x 80mm x 70mm.
Photo: Arion Kudasz Gabor.


















Miscellaneous Jewelry

First Place: Daniel M. Nagy, Frutto di Mare, above.
Second Place: Blue Moon, Marie Scarpa

Maria Scarpa, Second Place
Miscellaneous Jewelry
Blue Moon, 18K gold and platinum, hand fabricated pin/pendant; bezel-set 18mm 7.15ct abalone pearl center and 64 spires divided into 3 levels. Woven, invisibly soldered. Embellished with 28 round faceted 2.0mm pink sapphires, 4 round faceted 2.5mm yellow sapphires, eight round faceted 2.5mm blue sapphires, 4 round faceted 2.9mm blue sapphires, 16 round faceted 3.0mm teal green tourmalines, 4 round faceted 3.5mm teal green tourmalines. Hand fabricated and hand woven. 2.25".









Earrings

First Place (tied): Dream Catcher, Jeffrey Appling
First Place (tied):
Whirlpool, Daniel M. Nagy




























Jeffrey Appling, First Place (tied)

Earrings (above)
Dream Catcher, platinum chain, 18K yellow and white gold. Two half-moon diamonds, two 5-point-star diamonds, six natural yellow diamonds, 2mm square and round ruby, blue and yellow sapphire, spessartite, tsavorite, blue/green tourmaline, amethyst, two half-moon drusy onyx tablets. Cast manufacture, hand fabrication, bezel, tube, bead, and mock (bead) setting for cubes. 62mm x 26.5mm.
Photo: Hap Sakwa.


Daniel M. Nagy. First Place (tied)
Earrings
Whirlpool, 18K white gold, 15.5g. Tahitian pearl AAA, 10mm round 2pcs. Computer designed, wax printed, chased, hand finished. 120mm x 20mm x 20mm.
Photo: Daniel M. Nagy.

























Rings

First Place: Pearl Protrusion, Jeffrey Appling
Second Place: Message, Daniel M. Nagy and Agnes Kertesz


Jeffrey Appling, First Place
Rings
(above)
Pearl Protrusion, 950 platinum, 8.5mm faceted black cultured pearl and 8.5mm faceted white cultured pearl, tsavorite garnets and pink sapphires. Hand carved wax and of cast manufacture, bead-set small round gemstones and hand carved (artwork) along outside borders. 10.5mm x 20mm. Photo: Hap Sakwa.

Daniel M. Nagy & Agnes Kertesz, Second Place
Rings
(above)
Message,
18K white gold 10.8g, Tahitian pearl AAA round 1pc 9.4mm, brilliant cut diamonds. 20mm x 15mm.

Bracelets

First Place: Salad Blues, Laura Parr
Second Place: Dragon of 4 Elements, Dmitriy Pavlov


Laura Parr, First Place
Bracelets
(above)
Salad Blues,
forged and riveted sterling silver sheet, wire, tube, copper sheet; ten 1.5 millimeter, tube-set and riveted sapphires; ink. 51mm x 82mm x 72mm.
Photo: Jeremy Addington.



Dmitriy Pavlov, Second Place
Bracelets
(above)
Dragon of 4 Elements,
pierced, bent, and engraved sterling silver. 51mm x 82mm x 72mm.
Photo: Galina Pavlova.

Pins & Brooches

First Place: Inception, Tricia Lachowiec
Second Place: Star, Wendy McAllister


Tricia Lachowiec, First Place
Pins/
Brooches (above)
Inception,
18K gold on sterling silver, copper, enamel, diamond, steel. Chasing and repoussé, enameling. 23⁄4" x 1-5⁄8" x 3⁄4".
Photo: Dean Powell.
Wendy McAllister, Second Place
Pins/Brooches
(above)
Star
, sterling silver, acrylic, lenticular lens, 24K gold leaf, fabricated silver brooch, fabricated double pinstem back; found objects: candle bobeche and child’s ruler. 3.5".
Photo: Ralph Gabriner.

Pendants & Necklaces

First Place: Mary Darwall
Second Place (tied): Evolution, Jeffrey Appling
Second Place (tied): Fruit
, Tricia Lachowiec


Mary Darwall, First Place
Pendants/Necklaces
(above)
Eleven turquoise cabochons, turquoise beads, freshwater pearls, glass seed beads, beading cloth, nylon thread, 49-strand wire, 14K closure, leather backing. Hand needle woven, bead appliqué, freeform peyote, branching stitches. 18".
Photo: John Yohman.
Jeffrey Appling, Second Place (tied)
Pendants/Necklaces
(above)
Evolution, 30.37ct drilled citrine intruded with malachite, coral, and lapis tubes, 3.66cts. Drilled-out citrine pavilion injected with gemstones, pendant area cast, and hand fabricated. 16", 30.5mm x 33mm.
Photo: Hap Sakwa.

Tricia Lachowiec, Second Place (tied)
Pendants/Necklaces
(above)
Fruit, oxidized sterling silver, electroformed copper, enamel, 14K gold, cognac diamonds, sapphires. Electroforming and enameling. 10" x 6-1⁄4" x 1-1⁄4".
Photo: Dean Powell.

source : Jewelry Artist