GIA Certified Turquoise Diamond White Gold Dangle Pendant Necklace
Located in Stamford, CT
GIA certified turquoise and diamond pendant necklace.
21st Century and Contemporary Pendant Necklaces
Diamond, Turquoise, Gold, 18k Gold, White Gold
GIA Certified Turquoise Diamond White Gold Dangle Pendant Necklace
Located in Stamford, CT
GIA certified turquoise and diamond pendant necklace.
Diamond, Turquoise, Gold, 18k Gold, White Gold
GIA Certified Turquoise Yellow Gold Button Clip Post Earrings
Located in Stamford, CT
1950's IGD 18k yellow gold clip post style Turquoise earrings. GIA certified natural color sealed with a polymer to protect the Turquoise. 2 round cabochon turquoise with halos of ro...
Turquoise, Gold, 18k Gold, Yellow Gold
GIA Certified Turquoise Onyx Diamond White Gold Dangle Earrings
Located in Stamford, CT
Clip post earring backs. GIA certified as natural. 2 pear cabochon greenish blue turquoise, 33x30x7.3mm GIA Certificate # 6233690206 3 oval cabochon black onyx, 10x8mm 2 SC diamond...
Diamond, Onyx, Turquoise, Gold, 14k Gold, White Gold
GIA Certified Turquoise Diamond Yellow Gold Sterling Silver Dangle Earrings
Located in Stamford, CT
One of a kind pair of natural GIA certified light blue turquoise in handmade designer style earrings.
Diamond, Turquoise, Gold, 18k Gold, Yellow Gold, Silver, Sterling Silver
GIA Certified Round Turquoise Diamond Halo Platinum Gold Cocktail Ring
Located in Stamford, CT
Natural, untreated Persian blue GIA certified Turquoise round cabochon ring circa 1930's.
Diamond, Turquoise, 14k Gold, Yellow Gold, Platinum, Gold
GIA Certified Natural Turquoise Earrings with Diamonds
Located in New York, NY
A pair of GIA Certified Natural Turquoise Earrings with Diamonds.
Turquoise
GIA CERTIFIED Natural Blue Turquoise Oval Cabochon Cut GIA-2191276494
Located in Miami, FL
GIA certified oval cabochon cut blue turquoise.
Turquoise
GIA Certified 12.00 Carat Turquoise Yellow Gold Earrings
Located in Stamford, CT
Adorn yourself in elegance with our 1950's GIA Certified 12.00ct Turquoise yellow gold earrings, a timeless blend of sophistication and natural allure.
Turquoise, Gold, 14k Gold, Yellow Gold
GIA Certified Natural Turquoise Floral Earrings with Diamonds, 18k
Located in New York, NY
A GIA Certified Natural Turquoise Floral Earrings with Diamonds made in 18k gold.
Diamond, Turquoise
GIA Certified Natural Turquoise Cabochon and Diamond Earrings, 18k
Located in New York, NY
A pair of GIA Certified Natural Turquoise Cabochon and Diamond Earrings made in 18k White Gold.
Diamond, Turquoise, 18k Gold
GIA Certified Natural Turquoise Drops and Diamond Earrings, 14k
Located in New York, NY
A pair of GIA Certified Natural Turquoise Drops and Diamond Earrings made in 14k white gold.
Diamond, Turquoise, 14k Gold, White Gold
GIA Certified Natural Turquoise Pearl Halo Gold Dangle Earrings
Located in Stamford, CT
Gia certified natural turquoise natural color. Treated by a proprietary process that protects the natural turquoise surface treated.
Cultured Pearl, Turquoise, Pearl, Gold, 14k Gold, Yellow Gold
GIA Certified Persian Turquoise Textured Yellow Gold Bow Brooch
Located in Stamford, CT
GIA certified Persian turquoise textured yellow gold bow brooch.
Turquoise, 14k Gold, Yellow Gold, Gold
GIA Certified Sugar Loaf Turquoise Yellow Gold Cocktail Ring
Located in Stamford, CT
Sugar loaf style Turquoise gold ring. GIA certified cabochon high dome sugar loaf style turquoise, mounted in a textured bezel setting which was hand crafted in the early 1900's.
Turquoise, Gold, 18k Gold, Yellow Gold
GIA Certified 125.00 Carat Turquoise Yellow Gold Stone Bracelet
Located in Stamford, CT
Vintage 1930's graduated 10 stone natural untreated turquoise solid 14k gold bracelet. Each cabochon oval turquoise is bezel set in 14k yellow gold. The total carat weight of the 10 ...
Turquoise, Gold, 14k Gold, Yellow Gold
Gia Certified Natural Turquoise Cabochon Earrings with Yellow Diamonds, 18k
Located in New York, NY
A pair of GIA Certified Natural Turquoise Cabochon Earrings with Yellow Diamonds, made in 18 karat yellow gold.
Yellow Diamond, Turquoise, Gold
GIA Certified Persian Cabochon Turquoise Diamond Halo Gold Cocktail Ring
Located in Stamford, CT
Vintage 1950's Turquoise and diamond cocktail ring. GIA certified round Turquoise mounted in a 14k white gold scallop style crown with a halo of 14 round cut diamonds.
Diamond, Turquoise, 14k Gold, White Gold, Yellow Gold, Gold
GIA Certified 105 Ct Natural Oval Turquoise, Ruby & Diamond Pendant, Sleeping B
Located in New York, NY
GIA Report 6223835231 Natural Turquoise Vintage Huge 105 Ct Natural Oval Sleeping Beauty Turquoise, Ruby & Diamond Pendant white shiny dots in the picture is just the reflection from...
Turquoise, Diamond, Ruby, Gold
GIA 3.25 Carat Natural Persian Turquoise Diamond Halo Gold Cocktail Ring
Located in Stamford, CT
Stunning vintage 1950s Turquoise and diamond cocktail ring. GIA certified cabochon blue 3.25ct turquoise center stone, mounted in a 14k yellow gold cocktail ring setting.
Diamond, Turquoise, 14k Gold, Yellow Gold, Gold
GIA Natural Turquoise, Ruby and Diamond Estate Ring in 18k White Gold
Located in La Jolla, CA
GIA Natural Turquoise, Ruby and Diamond Estate Ring in 18k White Gold Estate Turquoise, Diamond and Ruby Ring features a GIA certified Natural Oval Cabochon Turquoise set horizonta...
Diamond, Ruby, Turquoise, 18k Gold, White Gold
GIA Certified Natural Pear Turquoise Diamond Halo Gold Cocktail Ring
Located in Stamford, CT
Elevate your elegance with this 1960's stunning GIA certified natural untreated cabochon Turquoise in an 18k yellow gold setting with bright white round cut Diamond halo.
Diamond, Turquoise, Gold, 18k Gold, Yellow Gold
GIA Certified Turquoise Lapis Lazulli Yellow Gold Rondelle Necklace
Located in Stamford, CT
GIA certified turquoise and lapis necklace with 18k yellow gold catch.
Lapis Lazuli, Turquoise, Gold, 18k Gold, Yellow Gold
1970's Diamond GIA Turquoise 18k Gold Enamel Clip On Earrings
Located in Miami, FL
This Vintage 1970's Pair of Diamond and Turquoise Earrings were inspired in the Nest & Eggs Style, crafted in solid 18K Yellow Gold with White Enamel Accents, The focus and promin...
Diamond, Turquoise, 18k Gold, Enamel
Turquoise Graduated Turquoise Necklace - GIA Certified Robins Egg Blue
Located in New York, NY
GIA Report Number: 1216710059 Beautifully Matched Strand, Extremely Rare - Not treated Species: Natural Turquoise Clasp: Barrel with Diamonds (Color: G-H) Natural Turquoise Length: 2...
Turquoise, Yellow Gold
GIA Certified Natural Turquoise Beads Necklace, 18k
By Mish
Located in New York, NY
A GIA Certified Natural Turquoise Beads Necklace with 16 to 20 MM beads.
Turquoise, 18k Gold
GIA Certified Natural Round Turquoise and Diamond Earrings
Located in New York, NY
A pair of GIA Certified Natural Round Turquoise and Diamond Earrings made in 18k White Gold.
Diamond, Turquoise
GIA Certified Handmade Freshwater Pearl Turquoise Gold Bracelet
Located in Stamford, CT
GIA certified Original American Arts & Crafts 1895 handmade 14k yellow gold bracelet with natural freshwater pearls and natural Turquoise. 8.25 inches in length. 1 natural freshwat...
Freshwater Pearl, Turquoise, Pearl, 14k Gold, Yellow Gold, Gold
GIA Natural Turquoise Diamond Platinum Large Ballerina Cocktail Ring
Located in Miami, FL
GIA Certified Light Blue Turquoise & Diamond ballerina style sparkly ring, Crafted in solid Platinum, the center is adorned by a GIA certified Natural Bluish Green turquoise with im...
Diamond, Turquoise, Platinum
1970s GIA Persian Turquoise 18 Karat Gold Diamond Oval Link Necklace
Located in Miami, FL
It showcases a classic curbed link chain style with Diamond embedded double links and 5 Persian Turquoises in between. The 5 stunning genuine oval cut GIA certified Persian Turquois...
Diamond, Turquoise, 18k Gold
1970s GIA Turquoise and Diamond 18 Karat Gold Oval Cocktail Ring
Located in Miami, FL
It is centered with a beautiful GIA certified oval cut Persian Turquoise of approximately 51.53 carats, measuring 32.75 x 19.80 x 10.90 mm, bezel set.
Diamond, Turquoise, 18k Gold, Gold
Natural Turquoise Diamond Gold Dangle Earrings
Located in Stamford, CT
1970’s 18k yellow gold dull finish dangle earrings with GIA certified natural Turquoise in hinged flexible settings with sparkly Diamond accents.
Diamond, Turquoise, Gold, 18k Gold, Yellow Gold
Natural Persian Turquoise Cameo Gold Link Bracelet
Located in Stamford, CT
GIA certified natural untreated Turquoise 21 x 21.5 x 5.35mm green blue double sided carving.
Turquoise, 18k Gold, Gold, Yellow Gold
GIA Certified Turquoise Diamond White Gold Dangle Drop Earrings
Located in Stamford, CT
GIA certified natural color with a protective coating commonly treated with a surface coating to establish lustre in the 1960's. 2 pear drop blue turquoise, 24.1mm x 8.2mm x 8.15mm ...
Diamond, Turquoise, Gold, 18k Gold, White Gold
GIA Certified Natural Turquoise Bead Necklace
Located in New York, NY
Measurements: 25.99 x 25.90 mm to 30.05 x 29.87 mm Five beads are GIA certified. Full length of the necklace is 26.5 inches (67.31 cm)
Turquoise, 18k Gold
GIA Certified Persian Oval Turquoise Gold Cufflinks
Located in Stamford, CT
Vintage 1950s Persian oval turquoise GIA certified. 14k yellow gold handmade double-sided cufflinks. 14k yellow gold 2 oval cabochon blue Turquoise, 12.21 x 6.4 x 4.85mm, GIA certif...
Turquoise, 14k Gold, Gold, Yellow Gold
GIA Certified Vintage Natural Fine Turquoise Bead Necklace 18kt
Located in New York, NY
GIA Certified: 300ct Natural Turquoise Bead necklace Ranging 9.6-10mm 17 inches long 39 beads. 18kt clasp
Turquoise, 18k Gold, Yellow Gold
GIA Certified Natural Pear Turquoise Diamond Halo Gold Earrings
Located in Stamford, CT
Mid-Century 1950s GIA certified natural Turquoise and diamond clip post earrings.
Diamond, Turquoise, Gold, 14k Gold, 18k Gold, White Gold, Yellow Gold
GIA Certified 9.81 Carat Persian Turquoise Diamond Gold Cocktail Cluster Ring
Located in Stamford, CT
GIA certified natural Persian turquoise. 1 round cabochon turquoise greenish blue approximate 6.81 carats GIA Certificate # 2195114038 10 pear cabochon turquoise greenish blue appro...
Diamond, Turquoise, 18k Gold, White Gold, Yellow Gold, Gold
Tiffany & Co. GIA Certified Natural Turquoise Gold Link Bracelet, Circa 1960's
By Tiffany & Co.
Located in Stamford, CT
1960's Tiffany & Co 18k yellow gold hinged link bracelet. GIA certified natural untreated 6 oval Turquoise set in 18k yellow gold. 7 inches in length. 6 oval cabochon blue Turquois...
Turquoise, 18k Gold, Yellow Gold, Gold
GIA Certified 5.18 Carat Turquoise Pink Sapphire Diamond Yellow Gold Bridal Ring
By Roshe Jewels
Located in Los Angeles, CA
The total carat weight of the ring is 5.18 Carats. The Turquoise has been Certified by GIA and the original copy will be included with the ring.
Diamond, Turquoise, Pink Sapphire, 14k Gold, Yellow Gold
GIA Certifited 9.13 Carat Turquoise Sapphire Diamond White Gold Cocktail Ring
By Roshe Jewels
Located in Los Angeles, CA
GIA Certified Beautiful Turquoise Diamond Cabochon Cocktail Ring!
Diamond, Turquoise, 14k Gold, White Gold
Coral Turquoise Dome Button Cluster Gold Earrings
Located in Stamford, CT
GIA certified natural untreated Coral centers and GIA certified natural color Turquoise impregnated to preserve lustré. 2 round cabochon Coral, approx. total weight 3.58cts, 10.05...
Coral, Turquoise, 18k Gold, White Gold, Yellow Gold
6.78 Carat Turquoise Sapphire Diamond White Gold Cocktail Ring
By Roshe Jewels
Located in Los Angeles, CA
GIA Certified Beautiful Turquoise Diamond Cabochon Cocktail Ring!
Diamond, Turquoise, Sapphire, 14k Gold, White Gold
GIA Certified Natural Turquoise and Diamond Pendant with Chain
Located in Agoura Hills, CA
Crafted in 18K yellow gold, the peandat features a 19x13x5 mm cabochon cut GIA certified natural (no treatment) turquoise, set within a bezel of round brilliant cut diamonds, support...
Diamond, Turquoise, 18k Gold
GIA Certified Natural Turquoise Beaded Necklace
Located in San Mateo, CA
Graduated Single Strand of 56 Natural Turquoise Round Beads with 18k white gold clasp with certificate of guarantee as Sleeping Beauty
Turquoise, 18k Gold
18 White Gold Flower Ruby Invisible Stud Earrings
By La Fleur Jewels
Located in Bangkok, TH
A lovely ruby stud earrings that you can use as everyday.We use the top quality Ruby for our invisible setting.It is deep red and very sparking. The invisible is a highly technique ....
Diamond, Ruby, 18k Gold, White Gold
2.72 Carats Exotic Deep Green Emerald & Diamond ''Vines'' Climber 18K Ring
By Malpani Jewels
Located in Hung Hom, HK
This breathtaking 2.72 Carats Exotic Deep Green Emerald & Diamond 'Vines' Climber 18K Ring is a captivating celebration of nature's elegance, masterfully designed as a climbing or wr...
Diamond, Emerald, 18k Gold
$4,550Sale Price / item|20% Off
W 0.16 in L 7 in
14k Solid Yellow Gold Natural 14.35 Carat Turquoise Tennis Bracelet
By VR Jewels
Located in New York, NY
14.35 ct Natural Turquoise Tennis Bracelet in 14K Gold showcases 30 endlessly set natural turquoise weighing 14.35 carats. It measures 7 inches long in length. Turquoise enhances co...
Turquoise, Gold, 14k Gold, Yellow Gold
3.90 Carats Natural Turquoise and Diamond 14k Solid White Gold Ring
Located in Los Angeles, CA
3.90 Carats Impressive Natural Turquoise and Diamond 14K Solid White Gold Ring Total Natural Oval Turquoise Weight is: Approx. 3.20 Carats Turquoise Measures: 12.00 x 10.00mm Na...
Diamond, Turquoise, 14k Gold, White Gold
$39,988Sale Price|20% Off
CARTIER Paris Art Deco Enameled Cocktail Ring 18Kt Gold With Diamonds & Gemstone
By Cartier
Located in Miami, FL
An art deco ring designed by Cartier. This is a magnificent art deco ring, created in Paris France and designed by the jewelry house of Cartier. This colorful cocktail ring is very ...
Amethyst, Diamond, Jade, White Diamond, Gold, Yellow Gold, Enamel, 18k Gold
13 Mm White Pearls, Diamonds, 14 Karat White Gold Earrings.
Located in Napoli, Campania
Beautiful earrings in 14 kt white gold structure mounted with a central pearl surrounded by leaves studded with diamonds. These earrings were totally handmade by Italian master golds...
Diamond, Pearl, 14k Gold, White Gold
Turquoise Pendant 18k
Located in Litchfield, CT
Circa 1960s, 18k, American. Perfect for layering or brilliant on its own, this bright blue 17.60mm turquoise bauble set with 18k yellow gold is fun, fashionable, mystical … Beautif...
Turquoise, 18k Gold, Yellow Gold
$24,000Sale Price|60% Off
NWT 60, 000 18KT Magnificent Multi Rainbow 45CT Heart Sapphire Diamond Necklace
Located in New York, NY
The Following Items we are offering is a Rare Important Gorgeous 18KT White Gold Exquisite Glittering Fancy Colored Heart Sapphire Diamond Necklace!!!! Necklace features Outstanding ...
Diamond, Sapphire, Yellow Sapphire, Green Sapphire, Purple Sapphire, Gol...
S/S 1998 Gianni Versace by Donatella Wet Look Backless Stretch Runway Dress 42IT
By Gianni Versace Couture, Donatella Versace for Gianni Versace
Located in West Hollywood, CA
Donatella Versace designed this sleek wet-look strapless dress for her Spring/Summer 1998 Gianni Versace collection. This chic, form-fitting dress debuted on the runway, modeled by N...
Multi Strand Bead Emerald Necklace with Carved Drop Pendant
Located in New York, NY
Multi Strand Bead Emerald Necklace with Carved Drop Pendant This double-strand emerald necklace features deep green beads leading to a diamond-set clasp and pendant. The centerpiece...
Emerald, Gold, 18k Gold, White Gold, Platinum
Dolce & Gabbana Black & Cream Lingerie Inspired Evening Gown Spring 2006 Sz 40IT
By Dolce & Gabbana
Located in Saint Petersburg, FL
Dolce & Gabbana Black & Cream Lingerie Inspired Evening Gown. Spring/Summer 2006 Size 40IT
7.55 Carat Peach Tourmaline Emerald Cut Platinum Diamond Ring
By Merkaba
Located in Beverly Hills, CA
A 7.55 carat peach tourmaline emerald cut platinum diamond ring, handcrafted by Merkaba Jewelry Beverly Hills as a romantic collector jewel and meaningful alternative engagement ring...
Diamond, Tourmaline, White Diamond, Emerald, Platinum
A vintage pair of rubellite and diamond drop earrings
Located in London, GB
A vintage pair of rubellite and diamond drop earrings, each earring set with an octagonal-cut rubellite, the one weighing 6.90 carats and the other 6.95 carats, each with three small...
Diamond, Rubelite, 18k Gold, White Gold
Modern Natural Arizona Turquoise & Diamond Cocktail Drop Earrings 18K White Gold
By SCALA GIOIELLI
Located in Marcianise, IT
A striking, sophisticated, and beautifully sculpted pair of modern cocktail drop earrings crafted in solid 18-karat white gold. These exquisite statement pieces flawlessly blend an i...
Diamond, Turquoise, 18k Gold, White Gold
RARE Gucci by Tom Ford S/S 2003 Pink Embroidered Kimono Clutch Bag Purse
By Tom Ford for Gucci, Gucci
Located in Switzerland, CH
EXTREMELY RARE „KIMONO“ Bag by TOM FORD for GUCCI SS 2003 Very rare and exclusive GUCCI signature piece Collector's Item! Pink frayed, layered silk Black hand-embroidery Mat black t...
14k Yellow Gold Turquoise Huggie Hoop Earrings Gifts for Her
Located in Great neck, NY
Quality Earrings Set: Made from real 14k gold , featuring a single line of 14 round blue turquoise 1/2" in diameter. Made in Italy Surprise Your Loved Ones with Our Turquoise Hoop E...
Turquoise, 14k Gold, Rose Gold, White Gold, Yellow Gold
Gold is the feel-good metal, the serotonin of jewelry. Wear vintage and antique gold necklaces, watches, gold bracelets or gold rings and you feel happy, you feel dressed, you feel, well, yourself.
Gold, especially yellow gold, with its rich patina and ancient pedigree going back thousands of years, is the steady standby, the well-mannered metal of choice. Any discussion of this lustrous metal comes down to a basic truth: Gold is elementary, my dear. Gold jewelry that couples the mystique of the metal with superb design and craftsmanship achieves the status of an enduring classic. Many luxury houses have given us some of our most treasured and lasting examples of gold jewelry over the years.
Since its founding, in 1837, Tiffany & Co. has built its reputation on its company jewelry as well as its coterie of boutique designers, which has included Jean Schlumberger, Donald Claflin, Angela Cummings and Elsa Peretti. There are numerous gold Tiffany classics worth citing. Some are accented with gemstones, but all stand out for their design and the workmanship displayed.
For the woman who prefers a minimalist look, the Tiffany & Co. twist bangle (thin, slightly ovoid) is stylishly simple. For Cummings devotees, signature pieces feature hard stone inlay, such as her pairs of gold ear clips inlaid with black jade (a play on the classic Chanel black and tan), or bangles whose design recalls ocean waves, with undulating lines of lapis lazuli and mother-of-pearl. And just about any design by the great Jean Schlumberger is by definition a classic.
Even had he eschewed stones and diamonds, Southern-born David Webb would be hailed for the vast arsenal of heavy gold jewelry he designed. Gold, usually hammered or textured in some manner, defines great David Webb jewelry. The self-taught jeweler made very au courant pieces while drawing inspiration from ancient and out-of-the-way sources — East meets West in the commanding gold necklaces made by Webb in the early 1970s. The same could be said for his endlessly varied gold cuffs.
In Europe, many houses have given us gold jewelry that sets the highest standard for excellence, pieces that were highly sought after when they were made and continue to be so.
Numerous designs from Cartier are homages to gold. There are the classic Trinity rings, necklaces and bracelets — trifectas of yellow, white and rose gold. As a testament to the power of love, consider the endurance of the Cartier Love bracelet.
Aldo Cipullo, Cartier’s top in-house designer from the late 1960s into the early ’70s, made history in 1969 with the Love bracelet. Cipullo frequently said that the Love bracelet was born of a sleepless night contemplating a love affair gone wrong and his realization that “the only remnants he possessed of the romance were memories.” He distilled the urge to keep a loved one close into a slim 18-karat gold bangle.
BVLGARI and its coin jewelry, gemme nummarie, hit the jackpot when the line launched in the 1960s. The line has been perennially popular. BVLGARI coin jewelry features ancient Greek and Roman coins embedded in striking gold mounts, usually hung on thick link necklaces of varying lengths. In the 1970s, BVLGARI introduced the Tubogas line, most often made in yellow gold. The Tubogas watches are classics, and then there is the Serpenti, the house's outstanding snake-themed watches and bracelets.
A collection called Monete that incorporated the gold coins is one of several iconic BVLGARI lines that debuted in the 1970s and ’80s, catering to a new generation of empowered women. Just as designers like Halston and Yves Saint Laurent were popularizing fuss-free ready-to-wear fashion for women on the go, BVLGARI offered jewels to be lived in.
Since Van Cleef & Arpels opened its Place Vendôme doors in 1906, collection after collection of jewelry classics have enchanted the public. As predominantly expressed in a honeycomb of gold, there is the Ludo watch and accessories, circa the 1920s, and the golden Zip necklace, 1951, whose ingenious transformation of the traditional zipper was originally proposed by the Duchess of Windsor. Van Cleef's Alhambra, with its Moroccan motif, was introduced in 1968 and from the start its popularity pivoted on royalty and celebrity status. It remains one of VCA’s most popular and collected styles.
Mention must be made of Buccellati, whose name is synonymous with gold so finely spun that it suggests tapestry. The house’s many gold bracelets, typically embellished with a few or many diamonds, signified taste and distinction and are always in favor on the secondary market. Other important mid-20th-century houses known for their gold-themed jewelry include Hermès and Ilias Lalaounis.
Find a stunning collection of vintage and antique gold jewelry on 1stDibs.
The thought of vintage and antique turquoise jewelry often conjures up images of striking Navajo bracelets and necklaces worn with a denim shirt and cowboy boots. This all-American look has been celebrated by fashion designers like Ralph Lauren and Tommy Hilfiger on their runways and in ad campaigns. In the October 2016 issue of Vogue magazine, Tom Ford said he only wears turquoise jewelry at his Santa Fe ranch. So what is it about this gorgeous blue-green stone that makes us wish that we were born in December?
It’s not surprising that turquoise is abundant in New Mexico and Arizona because, according to the Gemological Institute of America (GIA), it needs to be in “dry and barren regions where acidic, copper-rich groundwater seeps downward and reacts with minerals that contain phosphorus and aluminum.
Turquoise is not found in a single crystal but is a combination of microcrystals. Its appearance, waxy and opaque, is attributed to its structure and composition. “It’s an aggregate of microscopic crystals that form a solid mass. If the crystals are packed closely together, the material is less porous, so it has a finer texture. Fine-textured turquoise has an attractive, waxy luster when it’s polished. Turquoise with a less-dense crystal structure has higher porosity and coarser texture, resulting in a dull luster when it’s polished,” notes the GIA. Since no one wants to set a dull piece of turquoise, porous turquoise is often treated to make the stone more attractive.
In the United States, there have been discoveries of turquoise from 200 B.C. It is not just loose turquoise stones that have been found, but entire suites of jewelry from prehistoric times. In the late 19th-century, the Navajo Indians, who learned silversmithing from the Spanish, started to make beads out of turquoise and eventually combined it with silver around the 1880s. Initially this jewelry was for ceremonial purposes, but it became fashionable once the tourism in the Southwest picked up in the beginning of the 20th century.
Find antique and vintage turquoise rings, necklaces, bracelets and other accessories on 1stDibs.