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20 Carat Tanzanite

New 4.18 Carat Tanzanite Diamond Cut Sapphire Sterling Necklace 18-20 Inches
Located in Eagan, MN
necklace. The tanzanite stones are oval cut and measure 4 x 3 mm. There are 22 tanzanite stones and they
Category

21st Century and Contemporary Unknown Art Deco Drop Necklaces

Materials

Sapphire, Tanzanite, Sterling Silver

Carved Tanzanite Sapphire Diamond Ear Climber Earrings
By Meghna Jewels
Located in Hoffman Estate, IL
with 10.6 carats tanzanite, .20 carats sapphire & 2.1 carats of sparkling diamonds. Show off their
Category

21st Century and Contemporary Unknown Contemporary Stud Earrings

Materials

Diamond, Sapphire, Tanzanite, Gold, 18k Gold

Natural tanzanite and natural diamond earrings in 18k gold
Located in New York, NY
Diamonds : pears : 4.56 carats ( 20 pointer) marquese : 0.36 carat ( 20 pointer) rounds : 0.03
Category

2010s Indian Stud Earrings

Materials

Diamond, Tanzanite, 18k Gold

18K Gold, Triple Stone Stud Earrings--Emeralds, Rainbow Moonstone Tanzanite
Located in Nantucket, MA
carats and the third is a pear-shaped, faceted tanzanite of .20 carats. Simple yet stunning. All set in
Category

Late 20th Century Stud Earrings

Materials

Emerald, Tanzanite, Rainbow Moonstone, 18k Gold

Recent Sales

20 Carat Tanzanite and Diamond Ring/Pendant in 18 Karat White Gold
Located in Chicago, IL
20cts Tanzanite & Diamond Ring/Pendant in 18k WG - 18kt. White Gold Tanzanite & Diamond Ring
Category

2010s Unknown Contemporary Fashion Rings

Materials

Diamond, Tanzanite, 18k Gold, White Gold

Unmatchable 20 Carat Tanzanite Emerald Cut Diamond Platinum Ring
By Merkaba
Located in Beverly Hills, CA
This incredible 20 carat emerald cut Tanzanite and 2 carat total Diamond platinum ring, is at a
Category

21st Century and Contemporary American Cocktail Rings

Materials

Tanzanite, Platinum

20 Carat Tanzanite Diamonds Emeralds 18 Karat White Gold Cocktail Ring, 2000
Located in Herzelia, Tel Aviv
Tanzanite blue stone weighting 20Ct, with fine round-cut Diamonds and four Emeralds in an 18K White
Category

Early 2000s Art Nouveau Cocktail Rings

Materials

Diamond, Emerald, Tanzanite, White Gold

25 Carat AAA Tanzanite and Diamond Pendant/ Necklace 18 Karat White Gold
Located in New York, NY
mounted in 18 karat White gold. Weight of the necklace is 20 Grams . Tanzanite Weight 25 Carats Diamond
Category

2010s Drop Necklaces

Materials

Diamond, Tanzanite, 18k Gold

Natural tanzanite and natural diamond earrings in 18k gold
Located in New York, NY
Diamonds : 1.06 carats ( 50 pointers) 3.60 carats ( pears ) 15 to 20 pointers 0.24 carats
Category

2010s Indian Stud Earrings

Materials

Diamond, Tanzanite, 18k Gold

20 Carat Tanzanite Diamond Hanging /Cocktail Drop Earring 18 Karat White Gold
Located in New York, NY
20 Carat Oval Tanzanite and Diamond Hanging or Cocktail Earring 18 Karat White Gold perfect pair
Category

2010s Dangle Earrings

Materials

Diamond, Tanzanite, 18k Gold, White Gold

Susan Lister Locke 20.11 Carat Cabochon Tanzanite in 18K Gold Band with Diamonds
By Susan Lister Locke
Located in Nantucket, MA
An eye-popping, over 20-carat Oval Cabochon Tanzanite is nestled in an 18 Karat Gold Textured Band
Category

2010s American Contemporary Cocktail Rings

Materials

Diamond, Tanzanite, Gold, 18k Gold

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David Webb 18k Yellow Gold and Platinum Diamond Bombe Bracelet
By David Webb
Located in New York, NY
The David Webb Platinum & 18K Yellow Gold 15.00cttw Bombe Diamond Leaf Motif Bracelet is an exquisite piece of jewelry that exudes elegance and luxury. Crafted with precision, this...
Category

20th Century American Modern Modern Bracelets

Materials

Diamond, Yellow Gold, Platinum

Meghna Jewels Opal Sapphire Diamond Drop Earrings
By Meghna Jewels
Located in Hoffman Estate, IL
Cast from 18-karat gold and sterling silver. These beautiful drop earrings are hand set with 4.86 carats Opal doublets, 2.5 sapphire and 4.18 carats of glimmering diamonds. FOLLOW ...
Category

21st Century and Contemporary Contemporary Drop Earrings

Materials

Diamond, Opal, Sapphire, 18k Gold, Sterling Silver

Cartier Trinity 18K Tri Color Trinity Round Dial 27mm 1990 s Diamond Watch
By Cartier
Located in New York, NY
Indulge in timeless elegance with the Ladies Cartier Trinity 2357, a stunning representation of our exquisite collection of pre-owned watches for sale. This watch exudes glamour and ...
Category

20th Century French Modern Wrist Watches

Materials

Diamond, Yellow Gold

Cartier Baignoire Mini 18K Yellow Gold Bangle Watch 17
By Cartier
Located in Jersey City, NJ
Sold out worldwide with a waitlist extending over a year, this petite timepiece is a masterpiece of craftsmanship. Skilfully created in the house's Swiss atelier, it boasts 18-karat ...
Category

2010s Wrist Watches

Angela Caputi Dangle Resin Clip Earrings Faux Coral and Jade
By Angela Caputi
Located in Atlanta, GA
These amazing Angela Caputi, made in Italy, resin clip-on earrings feature a dangling shape with a stylized dimensional flower in faux coral color, complemented by a green faux-jade ...
Category

Early 2000s Italian Modern Clip-on Earrings

Cartier Paris 5cts Diamond Huggie Hoop Earrings in 18K Yellow Gold
By Cartier
Located in Dallas, TX
A fabulous pair of vintage Cartier Paris diamond huggie-hoop earrings. They showcase approximately 5 carats of sparkling diamonds set in shimmering 18 karat yellow gold. Each earring...
Category

Late 20th Century French Hoop Earrings

Materials

Diamond, 18k Gold, Yellow Gold

Tiffany Co. Kashmir Sapphire Necklace, 10.25 Carats
By Tiffany Co.
Located in New Orleans, LA
Crafted by the legendary Tiffany & Co., this enchanting necklace is a rare and unique masterpiece of early 20th-century American jewelry design. Delicately handcrafted, the one-of-a-...
Category

Antique 19th Century American Edwardian Pendant Necklaces

Materials

Diamond, White Diamond, Sapphire, Gold, 18k Gold

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

5.13 Carats Diamonds, Rubies, Platinum and 18 Karat White Gold Earrings.
Located in Marcianise, Marcianise (CE)
Elegant earrings in platinum and 18 kt white gold structure mounted with a central ruby suoounded by a crown of diamonds. These earrings were totally handmade by Italian master golds...
Category

Vintage 1960s Italian Retro Stud Earrings

Materials

Diamond, Ruby, 18k Gold, White Gold, Platinum

Round Cut Natural Blue Sapphire Bezel Set Stud Earrings in 14K Solid Yellow Gold
By VR Jewels
Located in New York, NY
These elegant stud earrings feature round cut natural blue sapphires, weighing 0.3 carats total. The sapphires are securely bezel set in 14K yellow gold, giving them a sleek and mode...
Category

21st Century and Contemporary American Modern Stud Earrings

Materials

Blue Sapphire, Gold, 14k Gold, Yellow Gold

Edwardian 1900 Enameled Blue Pansy Flower Brooch In 14Kt Gold With Diamond
Located in Miami, FL
Edwardian enameled Pansy flower brooch. Beautiful three-dimensional five-petals pansy flower, created in New Jersey North America during the Edwardian and the Art Nouveau periods, b...
Category

Antique Early 1900s American Edwardian Brooches

Materials

Diamond, White Diamond, Gold, 14k Gold, Yellow Gold, Enamel

Edwardian 1900 Enameled Blue Pansy Flower Brooch In 14Kt Gold With Diamond
Edwardian 1900 Enameled Blue Pansy Flower Brooch In 14Kt Gold With Diamond
$3,000 Sale Price
20% Off
W 1.18 in D 0.28 in L 1.26 in
Silver Cream Sugar Novelty Earrings, 1950 s
Located in Atlanta, GA
Just in time for your next 'coffee klatch' or high tea ... an adorable pair of C.1950 silver plate earrings in the form of a sugar and creamer. The mismatched pair is sure to be a g...
Category

Vintage 1950s American Retro Clip-on Earrings

Materials

Silver Plate

Silver Cream 
Sugar Novelty Earrings, 1950
s
Silver Cream 
Sugar Novelty Earrings, 1950
s
$95
H 0.75 in W 0.88 in D 0.88 in
NWT 135, 000 Gorgeous 18KT Gold South Sea Golden Pearl Yellow Diamond Necklace
Located in New York, NY
The Following Item we are offering is this Beautiful Rare Important 18KT White and Yellow Gold Pearl and Diamond Necklace. Necklace is comprised of Beautiful Magnificent High Luster ...
Category

21st Century and Contemporary Choker Necklaces

Materials

Diamond, Pearl, Yellow Diamond, Gold, 18k Gold

Vintage 1940 s Insect Jewellery Set insect rhinestone clip on earrings brooch
Located in Cheltenham, GB
A sight to behold. This original 1930's set, comprised of clip on earrings and a matching brooch, are the perfect statement set to your vintage jewellery collection. The clip on ear...
Category

Vintage 1940s Art Deco Clip-on Earrings

Materials

Mixed Metal

VAN CLEEF ARPELS Magic Alhambra 11-Motif Necklace
By Van Cleef Arpels
Located in New York, NY
This exquisite Van Cleef & Arpels necklace from the inspiring Magic Alhambra collection is crafted in 18k yellow gold and set with 11 motifs. Made in France circa 2006. Measurements:...
Category

Early 2000s Link Necklaces

Materials

18k Gold, Yellow Gold

Natural GIA Blue Sapphire Diamond Pear Drop Platinum Earrings
Located in Miami, FL
These stunning natural blue sapphire and diamond drop earrings are hand crafted in solid platinum. weighing 10 grams and measuring 24mm long x 11mm wide. Exposing a pair of prong-set...
Category

Late 20th Century American Art Deco Drop Earrings

Materials

Diamond, Blue Sapphire, Platinum

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20 Carat Tanzanite For Sale on 1stDibs

Find the exact 20 carat tanzanite you’re shopping for in the variety available on 1stDibs. Every item for sale was constructed with extraordinary care, often using Gold, 18k Gold and White Gold. In our selection of items, you can find a vintage example as well as a contemporary version. Finding the perfect 20 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. For this particular accessory, there are many different carat weights to choose from, but 1 Carat and 1.5 Carat versions are of considerable interest. There have been many well-made iterations of the classic 20 carat tanzanite over the years, but those made by Luigi Ferrara, Merkaba and Rina Limor are often thought to be among the most beautiful. See these pages for an oval cut iteration of this accessory, while there are also cushion cut cut and round cut cut versions available here, too. There aren’t many items for men if you’re seeking a 20 carat tanzanite, as most of the options available are for women and unisex.

How Much is a 20 Carat Tanzanite?

On average, a 20 carat tanzanite at 1stDibs sells for $6,400, while they’re typically $240 on the low end and $148,500 for the highest priced versions of this item.

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 20 Carat Tanzanite
  • 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 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 ExpertApril 5, 2022
    The term “20 carat gold” does not have a meaning. “Carat” is a unit of measurement used to describe the size of gemstones. “Karat” is the unit used to describe gold precious metal. Gold stamped as 20 karat or 20K is 83.3 percent pure gold and 16.7 percent metal alloy. You'll find a wide variety of gemstone jewelry on 1stDibs.