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12 Carat Tanzanite

6. 12 Carat Tanzanite Diamond Cocktail Ring
By Mehnaz Durrani
Located in Richmond, BC
Stunning tanzanite diamond cocktail ring. Violet-blue, high luster, pear faceted, 6.12 carats
Category

21st Century and Contemporary Canadian Contemporary Cocktail Rings

Materials

Diamond, Tanzanite, 14k Gold

Tanzanite Bracelet 12 Carats Rhodium Plated Silver
Located in Punta Gorda, FL
It comes with the Gemological Appraisal by GIA GG/AJP All gemstones are natural 86 Tanzanites
Category

21st Century and Contemporary Contemporary Tennis Bracelets

Materials

Tanzanite, Rhodium, Silver, Silver Plate, Sterling Silver

Tanzanite Bracelet 12 Carats Rhodium Plated Silver
Located in Punta Gorda, FL
It comes with the Gemological Appraisal by GIA GG/AJP All gemstones are natural 86 Tanzanites
Category

21st Century and Contemporary Contemporary Tennis Bracelets

Materials

Tanzanite, Rhodium, Silver, Silver Plate, Sterling Silver

11 Carat Oval Tanzanite and 12 Carat Diamonds Necklace 18 Karat Gold Estate
Located in New York, NY
This extraordinary Necklace is consist of 7 Fine oval Tanzanite weighing approximately 11 Carats
Category

20th Century Drop Necklaces

Materials

Diamond, Tanzanite, 18k Gold

62.89 Carats Tanzanite and White Diamond White Gold Bracelet
By Shimon s Creations
Located in New York, NY
12 Tanzanite Gemstones: 61.99 Carats 11 White Diamonds: 0.9 Carat Metal: 18K White Gold, 15.20
Category

2010s Link Bracelets

Materials

Diamond, White Diamond, Tanzanite, Gold, 18k Gold, White Gold

Aquamarine Ring With Tanzanites and Diamonds 2.25 Carats 10K White Gold
Located in Punta Gorda, FL
Carat 12 Tanzanites = 0.42 Carats 12 Diamonds = 0.06 Carats Metal: 10K White Gold Ring Size: 8* US *It
Category

21st Century and Contemporary Contemporary Cocktail Rings

Materials

Aquamarine, Diamond, White Diamond, Tanzanite, Gold, 10k Gold, White Gold

Aquamarine Ring With Tanzanites and Diamonds 2.25 Carats 10K White Gold
Located in Punta Gorda, FL
Carat 12 Tanzanites = 0.42 Carats 12 Diamonds = 0.06 Carats Metal: 10K White Gold Ring Size: 8* US *It
Category

21st Century and Contemporary Contemporary Cocktail Rings

Materials

Tanzanite, White Diamond, Diamond, Aquamarine, White Gold, 10k Gold, Gold

Aquamarine Ring With Tanzanites and Diamonds 2.25 Carats 10K White Gold
Located in Punta Gorda, FL
Carat 12 Tanzanites = 0.42 Carats 12 Diamonds = 0.06 Carats Metal: 10K White Gold Ring Size: 8* US *It
Category

21st Century and Contemporary Contemporary Cocktail Rings

Materials

Aquamarine, Diamond, White Diamond, Tanzanite, Gold, 10k Gold, White Gold

Aquamarine Ring With Tanzanites and Diamonds 2.25 Carats 10K White Gold
Located in Punta Gorda, FL
Carat 12 Tanzanites = 0.42 Carats 12 Diamonds = 0.06 Carats Metal: 10K White Gold Ring Size: 8* US *It
Category

21st Century and Contemporary Contemporary Cocktail Rings

Materials

Aquamarine, Diamond, White Diamond, Tanzanite, Gold, 10k Gold, White Gold

Aquamarine Ring With Tanzanites and Diamonds 2.25 Carats 10K White Gold
Located in Punta Gorda, FL
Carat 12 Tanzanites = 0.42 Carats 12 Diamonds = 0.06 Carats Metal: 10K White Gold Ring Size: 8* US *It
Category

21st Century and Contemporary Contemporary Cocktail Rings

Materials

Aquamarine, Diamond, White Diamond, Tanzanite, Gold, 10k Gold, White Gold

Aquamarine Ring With Tanzanites and Diamonds 2.25 Carats 10K White Gold
Located in Punta Gorda, FL
Carat 12 Tanzanites = 0.42 Carats 12 Diamonds = 0.06 Carats Metal: 10K White Gold Ring Size: 8* US *It
Category

21st Century and Contemporary Contemporary Cocktail Rings

Materials

Aquamarine, Diamond, White Diamond, Tanzanite, Gold, 10k Gold, White Gold

Aquamarine Ring With Tanzanites and Diamonds 2.25 Carats 10K White Gold
Located in Punta Gorda, FL
Carat 12 Tanzanites = 0.42 Carats 12 Diamonds = 0.06 Carats Metal: 10K White Gold Ring Size: 8* US *It
Category

21st Century and Contemporary Contemporary Cocktail Rings

Materials

Aquamarine, Diamond, White Diamond, Tanzanite, Gold, 10k Gold, White Gold

Aquamarine Ring With Tanzanites and Diamonds 2.25 Carats 10K White Gold
Located in Punta Gorda, FL
Carat 12 Tanzanites = 0.42 Carats 12 Diamonds = 0.06 Carats Metal: 10K White Gold Ring Size: 8* US *It
Category

21st Century and Contemporary Contemporary Cocktail Rings

Materials

White Diamond, Tanzanite, Diamond, Aquamarine, White Gold, 10k Gold, Gold

Tanzanite, Emerald and Diamond Stud Earrings
Located in Nantucket, MA
ears. Carat weight of tanzanites total 12 carats, the emerald is 4 carats and the diamonds total 1.2
Category

21st Century and Contemporary Stud Earrings

Materials

Diamond, Emerald, Tanzanite, 18k Gold, Sterling Silver

Recent Sales

12 Carat Tanzanite Ring 18 Karat White Gold
Located in Barnsley, GB
12 Carat Tanzanite Ring 18 Karat White Gold Tanzanite Diamond Ring 12CT 18K White Gold With 92
Category

21st Century and Contemporary Contemporary Fashion Rings

Materials

Diamond, Tanzanite, 18k Gold, White Gold

14, 12 Carat Tanzanite 4, 12 Carat Diamond 18 Karat Rose Gold Heritage Ring
By Gilan
Located in Istanbul, TR
"""With the ‘Palace Heritage’ collection, Gilan pays homage to the Topkaki Palace though the three incarnations of Byzantium, Constantinople and Istanbul, and celebrates its status a...
Category

21st Century and Contemporary Turkish Modern Fashion Rings

Materials

Diamond, Tanzanite, 18k Gold, Yellow Gold

Tanzanite and 12 Carat Diamond Bracelet in 18K Gold, circa 1970
Located in Goettingen, DE
Tanzanite and 12 Carat Diamond Bracelet in 18K Gold, circa 1970 Very distinctive, floral bracelet
Category

Vintage 1970s Link Bracelets

Materials

Diamond, Tanzanite, 18k Gold, Yellow Gold

Tanzanite Gold Rope Ring
By Lori Kaplan Jewelry
Located in New York, NY
An 18K gold rope band supports this 12 carat Rose-cut Tanzanite. A simple statement and one of a
Category

2010s American Cocktail Rings

Materials

Tanzanite, 18k Gold, Gold

12 Carat Tanzanite Diamond White Gold Estate Ring
Located in Boca Raton, FL
This lively 12 carat tanzanite gemstone is cushion cut and surrounded by 1.50 carat total weight of
Category

Late 20th Century Unknown Modern Cocktail Rings

Materials

White Diamond, Tanzanite, 14k Gold, White Gold

12 Carat Tanzanite Cabochon and Diamond Drop Necklace in Yellow and White Gold
By Sarosi By Timeless Gems
Located in Los Angeles, CA
This pendant features a beautiful 12.56 carat tanzanite cabochon with the rich, lavendar-blue color
Category

21st Century and Contemporary American Artisan Drop Necklaces

Materials

White Diamond, Tanzanite, Diamond, 18k Gold, Gold, White Gold, Yellow Gold

12 Ct Natural Trillion Tanzanite 0.50 Ct Diamond Tennis Bracelet 14 KW Gold
Located in New York, NY
trillion tanzanites weighing approximately 12 carats, it exudes elegance. Complementing the tanzanites are
Category

2010s Tennis Bracelets

Materials

Diamond, Tanzanite, 14k Gold, White Gold

Cushion Shape Tanzanite and Diamond Yellow Gold Cocktail Ring 4.62 Carat
By Harbor Diamonds
Located in New York, NY
12 X 9 Tanzanite 4.62 carats 18K Yellow Gold diamonds 0.71 cts.
Category

21st Century and Contemporary American Contemporary Cocktail Rings

Materials

Diamond, Tanzanite, 18k Gold, Yellow Gold

10Y Opal Tanzanite Halo Ring
Located in McLeansville, NC
- approximately 1.15 carats - tanzanites, 12 stones - round cut - 2.75 mm - approximately 1.20 total carats
Category

Vintage 1980s Cluster Rings

Materials

Opal, Tanzanite, Gold, 10k Gold, Yellow Gold

Cushion Shape Tanzanite and Diamond Yellow Gold Cocktail Ring 4.62 Carat
By Harbor Diamonds
Located in New York, NY
12 X 9 Tanzanite 4.62 carats 18K Yellow Gold diamonds 0.71 cts.
Category

21st Century and Contemporary American Contemporary Cocktail Rings

Materials

Diamond, Tanzanite, 18k Gold

5.10 Carat Tanzanite and Diamond 18 Karat White Gold Pendant Necklace
Located in New York, NY
Shape 5.10 Carat Tanzanite, a Baguette Diamond 0.23 Carat GH- VS quality and 5 Round Diamonds 0.28 Carat
Category

20th Century Chinese Modern Drop Necklaces

Materials

Diamond, Tanzanite, Gold, 18k Gold, White Gold

Natural Multi Stone 12 Carat Tennis Bracelet Set in Silver
Located in Punta Gorda, FL
It comes with the appraisal by GIA GG/AJP Natural Stones: Amethyst, Peridot, Citrine, Tanzanite
Category

21st Century and Contemporary Contemporary Tennis Bracelets

Materials

Amethyst, Citrine, Garnet, Opal, Peridot, Tanzanite, Rhodolite, Apatite,...

Natural Multi Stone 12 Carat Rainbow Tennis Bracelet Set In Silver
Located in Punta Gorda, FL
It comes with the appraisal by GIA GG/AJP Natural Stones: Amethyst, Peridot, Citrine, Tanzanite
Category

21st Century and Contemporary Contemporary Tennis Bracelets

Materials

Amethyst, Citrine, Garnet, Opal, Peridot, Tanzanite, Rhodolite, Apatite,...

Natural Multi Stone 12 Carat Rainbow Tennis Bracelet Set in Silver
Located in Punta Gorda, FL
It comes with the appraisal by GIA GG/AJP Natural Stones: Amethyst, Peridot, Citrine, Tanzanite
Category

21st Century and Contemporary Contemporary Tennis Bracelets

Materials

Amethyst, Citrine, Garnet, Opal, Peridot, Tanzanite, Rhodolite, Apatite,...

Bochic “Orient” Royal Blue Sapphire Lilac Tanzanite Vintage Cluster Ring Set
By Bochic
Located in New York, NY
Sapphire Cabochon - 12 Carat Lilac Tanzanite - 3 Carats This Ring is from the "Orient" traveling
Category

21st Century and Contemporary Thai Art Deco Cocktail Rings

Materials

Blue Sapphire, Tanzanite, 18k Gold, Gold Plate, Silver

Bochic “Capri” Ruby Sapphire Brooch/Pendent Set In 18K Gold &Silver
By Bochic
Located in New York, NY
shapes - 63 Carats Natural Blue Sapphires, Oval brilliant shapes - 12 Carats White Topaz - 4 Carat
Category

21st Century and Contemporary Thai Baroque Brooches

Materials

Ruby, Sapphire, Tanzanite, Topaz, 18k Gold, Gold Plate, Silver

12 Carat Tanzanite Diamond Gold Cocktail Ring
Located in Lambertville, NJ
18k white gold cocktal ring, set with approx. 12ct tanzanite, surrounded with approx. 1.90ctw in
Category

20th Century Unknown More Rings

Materials

Diamond, Tanzanite, 18k Gold

Steel/Silver Mesh Emerald, Tanzanite and Diamond Hinged Bracelet
Located in Dallas, TX
0.40 Carat Total Weight, 2 Pear Shape Tanzanites 0.50 Carat Total Weight, 12 Shield Cut Tanzanites
Category

Late 20th Century Unknown Cuff Bracelets

Materials

Diamond, Emerald, Tanzanite, Sterling Silver, Stainless Steel

People Also Browsed

Untreated Tanzanite Pendant, 104.39 Carats
Located in New Orleans, LA
A monumental 104.39-carat cushion-cut tanzanite is the star of this eye-catching pendant. The gem has been certified by the American Gemological Laboratories (AGL) as being untreated...
Category

21st Century and Contemporary Modern Pendant Necklaces

Materials

Diamond, Tanzanite, 18k Gold, Platinum

Black Opal and Diamonds Ring in 14k Gold. Gold Ring with Opal
By Daizy Jewellery
Located in Istanbul, TR
Black opal and diamonds ring in 14k gold. Genuine opal ring. Gold ring with opal Metal: 14k solid gold Weight: 2.4 g (depends from size) Main stone - opal, black with color play, o...
Category

2010s Turkish Modern Engagement Rings

Materials

Diamond, Opal, Black Opal, 14k Gold

Heart garnet Eternity Ring in 14k gold
By Daizy Jewellery
Located in Istanbul, TR
14k gold ring with heart natural garnets. Heart garnet eternity ring band. Valentines gift jewelry. Full circle of hearts. January birthstone ring. Heart Garnet gold ring. Love ring....
Category

2010s Turkish Modern Bridal Rings

Materials

Garnet, 14k Gold

Heart garnet Eternity Ring in 14k gold
Heart garnet Eternity Ring in 14k gold
$695 Sale Price / item
27% Off
9.70 Carats Natural Tanzanite and Diamond 14K Solid Yellow Gold Ring
Located in Los Angeles, CA
9.70 Carats Natural Tanzanite and Diamond 14K Solid Yellow Gold Ring Total Natural Tanzanite Weight is: Approx. 7.90 Carats Tanzanite Measures: Approx. 14.00 x 11.00mm Natural R...
Category

2010s American Cocktail Rings

Materials

Diamond, Tanzanite, 14k Gold, Yellow Gold

Antique Burma Ruby and Diamond Necklace
Located in New Orleans, LA
Sumptuous Burma rubies and vibrant white diamonds come together in this sensational antique necklace. Featuring a remarkable red hue, the Burma rubies total approximately 50 carats, ...
Category

Antique 19th Century Unknown Victorian Drop Necklaces

Materials

Diamond, Ruby, 10k Gold, Silver

5ct Tanzanite Forget Me Knot Ring in 18ct Yellow Gold
Located in Brisbane, AU
Ohliguer Forget Me Knot Tanzanite ring Natural vibrant blue/ purple Tanzanite 5ct Emerald cut 18ct yellow gold Made to your custom size Unisex Custom Made to order Every OH...
Category

2010s Contemporary Signet Rings

Materials

Tanzanite, 18k Gold, Yellow Gold

Emerald and Diamond Drop Necklace
By Diamond Scene
Located in New York, NY
A beautiful emerald and diamond necklace with an very important look. 12.05 carats of fine green emeralds. 28.04 carats of round brilliant cut diamonds. 18k white gold The de...
Category

21st Century and Contemporary Drop Necklaces

Materials

Diamond, White Diamond, Emerald, 18k Gold

27.46 Ct GIA Certified Colombian Emerald Diamond Necklace, 18k White Gold
By Hakimi s Gem
Located in Chicago, IL
A one-of-a-kind emerald necklace featuring 7 GIA certified Colombian emeralds totaling 10.25 ct, perfectly complemented by round brilliant-cut diamonds weighing 17.21 ct. Set in 18k ...
Category

21st Century and Contemporary Modern Drop Necklaces

Materials

Diamond, Emerald, 18k Gold, White Gold

Late Victorian Opal and Diamond Tiara
Located in London, GB
A late Victorian opal and diamond tiara/necklace, consisting of seven knife-edge gold bars graduating from the centre, each set with two round cabochon-cut opals and an old-cut diamo...
Category

Antique 1890s European Victorian Drop Necklaces

Materials

Diamond, Opal, 18k Gold, Silver

Late Victorian Opal and Diamond Tiara
Late Victorian Opal and Diamond Tiara
$54,367
W 1.58 in L 5.71 in
43 Carat Cushion-Cut Tanzanite Pendant Necklace with 18 Carat Diamonds, Estate
Located in New York, NY
This extraordinary, 43 carat tanzanite is truly an extraordinary gemstone. There are total of 18 carats of shimmering white diamonds, this brilliant cushion-cut gem exhibits the ri...
Category

20th Century Drop Necklaces

Materials

Diamond, Tanzanite, 14k Gold

18.00 Carats Natural Tanzanite and Diamond 18k Solid White Gold Ring
Located in Los Angeles, CA
18.00 Carats Natural Very Nice Looking Tanzanite and Diamond 14K Solid White Gold Ring Total Natural Tanzanite Weight is: Approx. 15.50 Carats Tanzanite Measures: Approx. 16.00 x ...
Category

2010s American Cocktail Rings

Materials

Diamond, Tanzanite, 18k Gold, White Gold

Very Fine 8.19Ct Cushion Cut Tanzanite Ring
Located in San Diego, CA
This Tanzanite has an incredibly deep, rich purple blue color reminiscent of sapphires. Most tanzanites have a much more pale hue, which is much less desirable. The value of this Tan...
Category

21st Century and Contemporary American Contemporary Cocktail Rings

Materials

Tanzanite, Platinum

10.10 Carats Natural Tanzanite and Diamond 18K Solid White Gold Ring
Located in Los Angeles, CA
10.10 Carats Natural Tanzanite and Diamond 18K Solid White Gold Ring Total Natural Tanzanite Weight is: Approx. 8.90 Carats Tanzanite Measures: Approx. 15.00 x 11.00mm Natural Ro...
Category

2010s American Cocktail Rings

Materials

Diamond, Tanzanite, 18k Gold, White Gold

Late Victorian Sapphire and Diamond Convertible Tiara/Necklace and Earrings
Located in London, England
An extremely elegant late Victorian sapphire and diamond convertible tiara and earring set, in silver and gold, circa 1900’s. This beautifully handcrafted tiara can be effortlessly...
Category

Antique Early 1900s British Victorian Drop Necklaces

Materials

Diamond, Sapphire, Gold, Silver

A Spectacular Large Siberian Amethyst and Diamond Pendant/Brooch, c. 1860
Located in Aspen, CO
Antique silver topped yellow gold brooch and pendant centering a gem quality natural approximately 22 ct. Siberian amethyst in a fancy octagonal shape. This stone, prong set, has an ...
Category

Antique 1860s Victorian Brooches

Materials

Amethyst, Diamond, 14k Gold, Silver

GIA Certified 45 Carat Natural Burma Ruby Diamond Necklace 18 Karat White Gold
Located in New York, NY
GIA Report 2225836480 NATURAL CORUNDUM Burma ( Myanmar) Moderate residue of heat GIA Certified 45 Carat Natural Burma Ruby and Diamond Necklace 18 Karat White Gold Necklace consistin...
Category

1990s Link Necklaces

Materials

Diamond, Ruby, 18k Gold, White Gold

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12 Carat Tanzanite For Sale on 1stDibs

Find the exact 12 carat tanzanite you’re shopping for in the variety available on 1stDibs. Frequently made of Gold, 18k Gold and White Gold, this item was constructed with great care. In our selection of items, you can find a vintage example as well as a contemporary version. Finding the perfect 12 carat tanzanite may mean sifting through those created during different time periods — you can find an early version that dates to the 20th Century and a newer variation that were made as recently as the 21st Century. As it relates to this specific piece, our collection includes designs that are universally popular, but 1.5 Carat and 2 Carat carat weights, specifically, are sought with frequency. A 12 carat tanzanite from Luigi Ferrara, Alberto and Royaal Stones Ltd — each of whom created a beautiful version of this treasured accessory — is worth considering. A 12 carat tanzanite of any era or style can lend versatility to your look, but a version featuring Tanzanite, from our inventory of 63, is particularly popular. An oval cut version of this piece has appeal, but there are also cushion cut and pear cut versions for sale. Finding a 12 carat tanzanite for sale for women should be easy, but there are 19 pieces available to browse for unisex as well as men, too.

How Much is a 12 Carat Tanzanite?

Prices for a 12 carat tanzanite can differ depending upon size, time period and other attributes — at 1stDibs, these accessories begin at $1,135 and can go as high as $42,000, while this accessory, on average, fetches $8,784.

Why Gold Shines in Jewelry Craftsmanship

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.

Questions About 12 Carat Tanzanite
  • 1stDibs ExpertSeptember 28, 2021
    The value of tanzanite per carat changes regularly. However, the value of A-grade tanzanite per carat in 2021 is about $200 for around 1.99 carats, $250 for around 2.99 carats, $275 for around 9.99 carats and $300 or more for anything above 10 carats. Shop for your first piece of tanzanite jewelry on 1stDibs today.
  • 1stDibs ExpertFebruary 22, 2021
    Because tanzanite prices are controlled by supply and demand in a way that diamond prices are not, the price is more linked to rarity. As a result 1 carat of the finest grade tanzanite is worth $600 to $700, but lower quality stones can be less expensive.
  • 1stDibs ExpertFebruary 22, 2021
    The size of a 12 carat diamond is dependent on diamond cut. A 12 carat round diamond is roughly 15 mm in size.