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8 Carat Tanzanite

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Important 8 Carat Tanzanite Ring Large Diamond Halo 2.12 Carats 18K Gold
Located in Laguna Niguel, CA
It comes with the Gemological Appraisal by GIA GG/AJP All Gemstones are Natural Tanzanite = 8.04
Category

21st Century and Contemporary Contemporary Cocktail Rings

Materials

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

Important 8 Carat Tanzanite Ring Large Diamond Halo 2.12 Carats 18K Gold
Located in Laguna Niguel, CA
It comes with the Gemological Appraisal by GIA GG/AJP All Gemstones are Natural Tanzanite = 8.04
Category

21st Century and Contemporary Contemporary Cocktail Rings

Materials

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

Victorian 11.5 Cttw. Tanzanite, Emerald and Diamond Split Shank Dome Ring
Located in New York, NY
of vivid emeralds, and the show-stopping 8-carat tanzanite. The round diamonds add a classic touch to
Category

2010s Victorian Dome Rings

Materials

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

47 Carat Oval Tanzanite and 8 Carat Diamonds Necklace 18 Karat White Gold Estate
Located in New York, NY
This extraordinary Necklace is consist of 19 Fine oval Tanzanite weighing approximately 47
Category

20th Century Drop Necklaces

Materials

Diamond, Tanzanite, 18k Gold

14K Yellow Gold 2 7/8 Carat Pixel Cut Emerald Bicolor Tanzanite Pendant Necklace
Located in New York, NY
, this necklace features a breathtaking 2 7/8 cttw emerald-cut tanzanite gemstone. The unique pixel cut
Category

21st Century and Contemporary Indian Modern Pendant Necklaces

Materials

Tanzanite, Emerald, 14k Gold, Yellow Gold

14K Yellow Gold 7/8 Carat Diamond and Blue Triangle Tanzanite Bracelet
Located in New York, NY
tanzanite gemstones in a triangular shape lends a radiant and high shine. The sleek bracelet is so delicate
Category

21st Century and Contemporary Indian Contemporary Link Bracelets

Materials

Diamond, White Diamond, Tanzanite, Yellow Gold, 14k Gold

14K Yellow Gold 7/8 Carat Diamond and Blue Triangle Tanzanite Bracelet
Located in New York, NY
tanzanite gemstones in a triangular shape lends a radiant and high shine. The sleek bracelet is so delicate
Category

21st Century and Contemporary Indian Contemporary Link Bracelets

Materials

Diamond, White Diamond, Tanzanite, 14k Gold, Yellow Gold

Bracelet in 14k Yellow Gold and 16.8 Cts in Tanzanite and .8 Carats in Diamonds
Located in Surfside, FL
14k bracelet with 16.8 cts Emerald cut Tanzanite and 8 carats full cut round brilliant diamonds. 7
Category

20th Century Link Bracelets

Materials

Diamond, Tanzanite, Yellow Gold

.83 Carat Tanzanite Diamond Halo Platinum Pendant Necklace
Located in Stamford, CT
Tanzanite and diamond pendant necklace. Triangular shape tanzanite with a halo of round beaded
Category

21st Century and Contemporary Italian Pendant Necklaces

Materials

Diamond, Tanzanite, Platinum

8.0 Carat Tanzanite Diamond Cocktail Ring
By Meghna Jewels
Located in Hoffman Estate, IL
carats tanzanite & illuminated with 3.22 carats diamonds. The ring is a size 7 and may be resized to
Category

21st Century and Contemporary Unknown Contemporary Cocktail Rings

Materials

Tanzanite, Diamond, 18k Gold, Sterling Silver

Ginormus 237 carat Rubyllite, 16 carats Tanzanite and Diamond Bracelet in 18KWG
Located in New York, NY
breathtaking Tanzanite and 8 carats sparkling Diamonds. The piece is crafted in 18 karat white gold and
Category

21st Century and Contemporary Link Bracelets

Materials

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

TJD 0.07 Carat Diamond and 8 X 6 MM Natural Tanzanite 14K White Gold Twist Ring
By TJD
Located in New York, NY
diamonds and 1 tanzanite in prong setting. Diamonds are graded in HI color and I2 clarity. This split shank
Category

2010s Indian Modern Engagement Rings

Materials

Diamond, Tanzanite, White Gold

Le Vian 12.00 Carat Tanzanite Diamond White Gold Bracelet
Located in Stamford, CT
Classic Le Vian design. 8 Oval tanzanite, each one with a halo of round brilliant cut diamonds. Set
Category

21st Century and Contemporary More Bracelets

Materials

Tanzanite, Diamond, Gold, 14k Gold, White Gold

4.11 Carat Tanzanite Diamond 14 Karat White Gold Ring
By DGI
Located in Los Angeles, CA
This ring has a radiant purple Emerald Cut Natural Tanzanite weighing 4.11 Carats. The Tanzanite
Category

2010s American Contemporary Cocktail Rings

Materials

Diamond, Tanzanite, 14k Gold, White Gold

9.88 Carat Oval Cabochon Tanzanite Diamond Gold Engagement Ring
Located in Stamford, CT
1970's Tanzanite and diamond ring. 9.88 Carat oval cabochon bezel set Tanzanite center stone
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Tanzanite, Gold, 14k Gold, White Gold

5.08 Carat Tanzanite Diamond 14 Karat White Gold Ring
By DGI
Located in Los Angeles, CA
This ring has a radiant purple Oval Cut Natural Tanzanite weighing 4.27 Carats. The Tanzanite
Category

2010s American Contemporary Cocktail Rings

Materials

Diamond, Tanzanite, 14k Gold, White Gold

White Gold Tanzanite & Diamond Ring - 14k Marquise 2.90ctw East-West Halo Size 8
Located in Greensboro, NC
Size: 8 Metal Content: 14k White Gold Stone Information Natural Tanzanite Treatment: Routinely
Category

21st Century and Contemporary Cocktail Rings

Materials

Diamond, Tanzanite, 14k Gold, White Gold

Le Vian 14.00 Carat Tanzanite Diamond White Gold Bracelet
By Le Vian
Located in Stamford, CT
Le Vian fine tanzanite and diamond 14k white gold bracelet. 8 oval tanzanite's separated by rings
Category

Late 20th Century Link Bracelets

Materials

Diamond, Tanzanite, Gold, 14k Gold, White Gold

1-5/8 ct. Aquamarine and Tanzanite with Diamond Accent Sterling Silver Ring
By Affinity Designs LLC
Located in New York, NY
Indulge in the elegance of our Oval-Cut Aquamarine and Pear-Cut Tanzanite with White Diamond
Category

2010s Asian Contemporary Three-Stone Rings

Materials

Aquamarine, Diamond, Tanzanite, Sterling Silver

6.60 Carat Blue Triangular Tanzanite Diamond Yellow Gold Bracelet
Located in Stamford, CT
1970's Tanzanite and diamond link bracelet. 16 triangular purple blue semi bezel set tanzanite
Category

Late 20th Century Link Bracelets

Materials

Diamond, Tanzanite, Gold, 14k Gold, Yellow Gold

Le Vian 8.00 Carat Oval Tanzanite Yellow Gold Link Bracelet
By Le Vian
Located in Stamford, CT
Le Vian tanzanite link bracelet. 13 oval blue tanzanite gemstones, set in a 14k yellow gold prong
Category

21st Century and Contemporary Link Bracelets

Materials

Tanzanite, Gold, 14k Gold, Yellow Gold

1.50 Carat Tanzanite Diamond Yellow Gold Three-Stone Band Ring
Located in Stamford, CT
Tanzanite and diamond 12mm wide tapered band ring. 3 oval tanzanite stones with 8 round accent
Category

21st Century and Contemporary Band Rings

Materials

Diamond, Tanzanite, Gold, 14k Gold, Yellow Gold

3.96 Carat Tanzanite Diamond 14 Karat White Gold Cocktail Ring
By DGI
Located in Los Angeles, CA
is 3.96 Carats. The Tanzanite measures at 8 mm x 10 mm. The ring is made in 14K White Gold and
Category

2010s American Contemporary Cocktail Rings

Materials

Diamond, Tanzanite, 14k Gold, White Gold

11.25 Carat Cushion Cut Tanzanite Diamond Platinum Drop Earrings
By Steven Fox Jewelry
Located in Greenwich, CT
Steven Fox Jewelry. Diamond weight .08 carats. D-F color. VVS+ clarity. 5/8" in height by 3/8" in
Category

2010s Modern Lever-Back Earrings

Materials

Diamond, Tanzanite, Platinum

.70 Carat Blue Tanzanite Diamond White Gold Swirl Pendant Necklace
Located in Stamford, CT
Round blue tanzanite in a swirl design with 28 round accent diamonds set in 14k white gold. 18 inch
Category

21st Century and Contemporary Pendant Necklaces

Materials

Diamond, Tanzanite, Gold, 14k Gold, White Gold

GIA Certified 1.57 Carat Oval Tanzanite Diamond Gold Engagement Ring
Located in Stamford, CT
blue Tanzanite, approx. total weight 1.57cts, 8.59 x 6.41 x 4.3mm, GIA certificate #2195396243 8 round
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Tanzanite, Gold, 14k Gold, Yellow Gold

White Gold Tanzanite & Diamond Ring - 14k Oval 1.41ctw Seven-Stone Sz 8
Located in Greensboro, NC
Size: 8 Metal Content: 14k White Gold Stone Information Natural Tanzanites Treatment: Routinely
Category

20th Century Fashion Rings

Materials

Diamond, Tanzanite, White Gold, 14k Gold

14K Yellow Gold 1 5/8 Cttw Diamond and Trillion Blue Tanzanite Link Bracelet
Located in New York, NY
her. Glistening 5mm trillion tanzanite gemstones alternate with beautiful 1 5/8 Cttw round diamonds in
Category

21st Century and Contemporary Indian Contemporary Link Bracelets

Materials

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

14K Yellow Gold 1 5/8 Cttw Diamond and Trillion Blue Tanzanite Link Bracelet
Located in New York, NY
her. Glistening 5mm trillion tanzanite gemstones alternate with beautiful 1 5/8 Cttw round diamonds in
Category

21st Century and Contemporary Indian Contemporary Link Bracelets

Materials

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

Tanzanite Cluster Ring 2.80 Carats Rhodium Plated Sterling Silver
Located in Laguna Niguel, CA
It comes with the Gemological Appraisal by GIA GG/AJP Tanzanites = 2.50 Carats Cut: Round, Oval
Category

21st Century and Contemporary Contemporary Cocktail Rings

Materials

Tanzanite, Rhodium, Silver, Sterling Silver

.75 Carat Pear Shaped Blue Tanzanite Bead Set Diamond Platinum Engagment Ring
Located in Stamford, CT
Pear shaped Blue tanzanite cocktail ring with Bead set rows of diamonds in a platinum setting. 1
Category

1990s Fashion Rings

Materials

Diamond, Tanzanite, Platinum

Peter Suchy 8.00 Carat Cabochon Tanzanite Diamond Halo Gold Pendant Necklace
By Peter Suchy
Located in Stamford, CT
Vivid blue earth mined tanzanite and diamond pendant necklace. 8.00 carat oval cabochon center
Category

21st Century and Contemporary Pendant Necklaces

Materials

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

Tanzanite Cluster Ring 2.80 Carats Rhodium Plated Sterling Silver
Located in Laguna Niguel, CA
It comes with the Gemological Appraisal by GIA GG/AJP Tanzanites = 2.50 Carats Cut: Round, Oval
Category

21st Century and Contemporary Contemporary Cocktail Rings

Materials

Tanzanite, Rhodium, Silver, Sterling Silver

Steven Battelle 18.5 Carat Tanzanite Cocktail Ring 22K Gold
By Steven Battelle
Located in Soquel, CA
A dazzling large oval rose-cut 15x 20 mm oval tanzanite is presented in a signature "V-bezel with
Category

21st Century and Contemporary Balinese Contemporary Cocktail Rings

Materials

Tanzanite, 22k Gold

Le Vian 1.25 Carat Tanzanite White Gold Bridal Ring
By Le Vian
Located in Great Neck, NY
A stunning 1-1/4 carat Tanzanite rests atop the gorgeous high profile setting of this 14k white
Category

2010s Bridal Rings

Materials

White Diamond, Brown Diamond, Tanzanite, 14k Gold, White Gold

182.15 Carat Unheated Kunzite Pendant Necklace Chrome Diopside Tanzanite
By Sabrina Balsky Jewelry
Located in New York, NY
Carats almost flawless Kunzite stone surrounded with Chrome Diopside baguettes and Faceted Tanzanites set
Category

21st Century and Contemporary American Artisan Pendant Necklaces

Materials

Kunzite, Tanzanite, Rhodium, Sterling Silver

Le Vian 1.125 Carat Tanzanite Rose Gold Bridal Ring
By Le Vian
Located in Great Neck, NY
14k rose gold ring is a beautiful 1-1/8 carat cushion cut Tanzanite that appears to rest atop a
Category

2010s Bridal Rings

Materials

White Diamond, Brown Diamond, Tanzanite, 14k Gold, Rose Gold

Tanzanite 15.86 Carat Diamond 18 Karat Yellow Gold Ring
By Mousson Atelier
Located in Bangkok, TH
Tanzanite 15.86 carat Diamond 18 Karat Yellow Gold Ring Just take a look on this rich "blue velvet
Category

21st Century and Contemporary Thai Contemporary Cocktail Rings

Materials

Diamond, Tanzanite, 18k Gold, Yellow Gold

Tanzanite 4.95 Carat Diamonds 18 Karat Yellow Gold Ring
By Mousson Atelier
Located in Bangkok, TH
Tanzanite 4.95 Carat Diamonds 18 Karat Yellow Gold Ring We have published a series of new Rings
Category

21st Century and Contemporary Thai Contemporary Cocktail Rings

Materials

Diamond, Tanzanite, 18k Gold, Yellow Gold

4.08 Carat Cushion Cut Purple Tanzanite Pave Diamond Gold Platinum Ring
Located in Stamford, CT
1970's Tanzanite and diamond ring. 4.08ct cushion cut bezel set Tanzanite center stone placed in an
Category

Late 20th Century Cocktail Rings

Materials

Diamond, Tanzanite, Gold, 18k Gold, Platinum, Yellow Gold

Faceted 980 Carat Natural Tanzanite Bead Five-Strand Necklace 14 Karat Gold
Located in New York, NY
Faceted 980 Carat Natural Tanzanite Bead Five Strand Necklace 14 Karat Gold All natural beads , no
Category

2010s Multi-Strand Necklaces

Materials

Tanzanite, Gold, 14k Gold, White Gold

Rare Green Tanzanite 12.68 Carat Cushion In Platinum 950 & Baguette Diamond Ring
By Gad & Co.
Located in Miami, FL
Vintage Platinum 950 ring with a rare 12.68-carat green tanzanite, complemented by two baguette-cut
Category

20th Century North American Art Deco Cocktail Rings

Materials

Diamond, Tanzanite, Platinum

3.94 Carat Sapphire, Tanzanite, Tourmaline, Morganite, Peridot, Diamond Earrings
By Kiersten Elizabeth
Located in Charleston, SC
. Gemstone Details 2 Kite-shaped Pink Sapphires Weighing 0.32 Carats 2 Pear-shaped Tanzanites Weighing 0.20
Category

21st Century and Contemporary American Modern Dangle Earrings

Materials

Amethyst, Diamond, Garnet, Morganite, Peridot, Sapphire, Tanzanite, Tour...

Butterfly Cocktail Ring Tanzanite and Swiss Blue Topaz 3.65 Carats
Located in Laguna Niguel, CA
It comes with the Gemological Appraisal by GIA GG/AJP All Gemstones are Natural 8 Tanzanites = 2.40
Category

21st Century and Contemporary Contemporary Cocktail Rings

Materials

Tanzanite, Topaz, Blue Topaz, Silver, Sterling Silver

5.0 Carat Tanzanite and Diamond 14 Karat White Gold Ring
Located in Atlanta, GA
Tanzanite and Diamond Ring - 14 karat White Gold, Tanzanite, Diamonds Features: 5.0 carat Emerald
Category

2010s Unknown Contemporary Solitaire Rings

Materials

Diamond, Tanzanite, 14k Gold, White Gold

Smooth 800 Carat Natural Tanzanite Bead Five Strand Necklace 14 Karat White Gold
Located in New York, NY
Smooth Approximately 800 Carat Natural Tanzanite Bead Five Strand Necklace 14 Karat Gold All
Category

2010s Multi-Strand Necklaces

Materials

Tanzanite, Gold, 14k Gold, White Gold

Effy's 5.5 Carat Oval Natural Tanzanite & 2.2 Ct Diamond Necklace 14 Karat Gold
By Effy
Located in New York, NY
1.5 pointer to 8 pointer there are 5 oval shape Tanzanite , one 10 X 8 mm, two 6X4 mm and two 7 X5 MM
Category

20th Century Drop Necklaces

Materials

Diamond, Tanzanite, 14k Gold, Rose Gold

Pear Shape Tanzanite 3.28 Carat Diamond Ring 18 Karat White Gold
Located in Brooklyn, NY
Fancy Tanzanite Ring & Diamonds, Pear Shape Tanzanite AAA brilliant deep purple 3.28 carat 10 x 8
Category

2010s Thai Fashion Rings

Materials

Diamond, Tanzanite, White Gold

2.52 Carat Tanzanite Aquamarine Blue Sapphire Diamond 14 Karat White Gold Ring
By DGI
Located in Los Angeles, CA
This beauty has a 1.15 Carat Natural Cushion Cut Tanzanite as its center and is surrounded by 8
Category

2010s American Contemporary Cocktail Rings

Materials

Aquamarine, Diamond, Blue Sapphire, Tanzanite, 14k Gold, White Gold

Amethyst Dangle Earrings With Tanzanites 4 Carats Rhodium Plated Sterling Silver
Located in Laguna Niguel, CA
= 3.60 Carats 10 Round Tanzanites = 0.40 Carats Metal: Rhodium Plated Sterling Silver Dimensions: 29 x 8
Category

21st Century and Contemporary Contemporary Dangle Earrings

Materials

Amethyst, Tanzanite, Rhodium, Silver, Sterling Silver

Tanzanite 6.20 Carat Diamonds Enamel 18 Karat White Gold Ring
By Mousson Atelier
Located in Bangkok, TH
Tanzanite 6.20 Carat Diamonds Enamel 18 Karat White Gold Ring Astounding marquise-shape 6.20 Carat
Category

21st Century and Contemporary Thai Contemporary Cocktail Rings

Materials

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

Tanzanite and 12 Carat Diamond Bracelet in 18K Gold, circa 1970
Located in Goettingen, DE
made of high-carat gold, openwork and set with 8 bright blue-violet tanzanites with a total of 7.65 ct
Category

Vintage 1970s Link Bracelets

Materials

Diamond, Tanzanite, 18k Gold, Yellow Gold

8.90 Carat Tanzanite & Diamond Pendant Necklace in White and Yellow Gold
By Sarosi By Timeless Gems
Located in Los Angeles, CA
This gorgeous necklace features a fine, 8.90 carat tanzanite with perfect bluish purple color! The
Category

21st Century and Contemporary Artisan Pendant Necklaces

Materials

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

Middle Ages Ring, 18 Karat White Gold, Tanzanite 12.05 Carat
By Colleen B. Rosenblat
Located in Hamburg, DE
reflect an intricately personal, elegant and timeless interpretation of the Middle Ages. Ring size 8 (EU
Category

2010s German Contemporary Cocktail Rings

Materials

Tanzanite, 18k Gold, White Gold

3.40 Carat Natural Oval Brilliant Tanzanite Diamonds Dangle Earrings 14 Karat
Located in New York, NY
Tanzanite Dangle. 2.14ct natural oval tanzanites Clean Clarity & Transparent 8 X 6mm each
Category

2010s American Dangle Earrings

Materials

Diamond, Tanzanite, 14k Gold, White Gold

Tanzanite 3.76 Carat Diamonds 18 Karat Yellow Gold Four Seasons Ring
By Mousson Atelier
Located in Bangkok, TH
Tanzanite 3.76 Carat Diamonds 18 Karat Yellow Gold Four Seasons Ring Ring from the Four Seasons
Category

21st Century and Contemporary Thai Contemporary Cocktail Rings

Materials

Diamond, Tanzanite, 18k Gold

Steven Battelle 3.5 Carats Rose-Cut Tanzanite Organic 18k Gold Ring
By Steven Battelle
Located in Soquel, CA
A rectangular 8 x 10 mm rose cut tanzanite is held in a simple hammered bezel atop a shaped heavy
Category

21st Century and Contemporary Balinese Contemporary Cocktail Rings

Materials

Tanzanite, 18k Gold

32.05 Carat Pear Shape Tanzanite and Emerald Three-Stone Cocktail Ring
By Royaal Stones Ltd
Located in Bangkok, Thailand
Make a statement with this exceptional pear shaped, 32.05 carat AAA blue Tanzanite cocktail ring
Category

21st Century and Contemporary Modern Three-Stone Rings

Materials

Emerald, Tanzanite, Gold, 18k Gold, White Gold

3.28 Carat Dangle Tanzanite and Diamond Earrings in 18k White Gold
By VR Jewels
Located in Houston, TX
You shall need Tanzanite Dangle earrings to make a statement with your look. These earrings create
Category

21st Century and Contemporary American Modern Dangle Earrings

Materials

Diamond, Tanzanite, 18k Gold, White Gold

1.39 Carat Tanzanite Gemstone Diamond Ring in 18k Solid White Gold
By VR Jewels
Located in Houston, TX
Tanzanite Diamond Engagement Ring in 18K Gold featuring natural tanzanite of 1.39 carats and
Category

21st Century and Contemporary American Modern Engagement Rings

Materials

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

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8 Carat Tanzanite For Sale on 1stDibs

On 1stDibs, you can find the most appropriate 8 carat tanzanite for your needs in our varied inventory. Each design created in this style — which was crafted with great care and often made from Gold, 18k Gold and White Gold — can elevate any look. Our collection of these items for sale includes 304 vintage editions and 2751 modern creations to choose from as well. If you’re looking for a 8 carat tanzanite from a specific time period, our collection is diverse and broad-ranging, and you’ll find at least one that dates back to the 18th Century while another version may have been produced as recently as the 21st Century. As it relates to this specific piece, our collection includes designs that are universally popular, but .5 Carat and 1 Carat carat weights, specifically, are sought with frequency. Finding an appealing 8 carat tanzanite — no matter the origin — is easy, but Sunita Nahata, Le Vian and Alberto each produced a popular version that is worth a look. A 8 carat tanzanite can make for a versatile accessory, but a selection from our variety of 2351 Tanzanite versions can add an especially stylish touch. 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 8 carat tanzanite, as most of the options available are for women and unisex.

How Much is a 8 Carat Tanzanite?

On average, a 8 carat tanzanite at 1stDibs sells for $4,591, while they’re typically $1 on the low end and $335,608 for the highest priced versions of this item.
Questions About 8 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 ExpertSeptember 28, 2021
    An 8-carat diamond’s worth varies depending on the 4Cs of diamond quality – color, cut, clarity and carat. On an average an 8-carat diamond could cost you between $17,500 to $90,000. It is also likely that the price range per carat will be even broader. On 1stDibs, you can find a variety of 8-carat diamond jewelry from different periods and styles to choose from.