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Untreated Blue Diamonds

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Certified Blue Sapphire & Diamond Signet Ring 'Natural & Untreated'
Located in London, GB
Blue Sapphire & Diamond Signet Ring displays a regal 1 carat natural blue sapphire at its centre
Category

2010s English Contemporary Signet Rings

Materials

Blue Sapphire, Sapphire, Diamond, 14k Gold

Certified 6 Carat Blue Sapphire Diamond Earring 'Natural & Untreated'
Located in London, GB
Gemstone: Natural untreated, Ceylon blue Sapphires AAAA highest heirloom quality Total weight of
Category

2010s Unknown Art Nouveau Drop Earrings

Materials

Diamond, Sapphire, Blue Sapphire, Platinum

GRS Certified Blue Sapphire Diamond Pendant Necklace 'Natural & Untreated'
Located in London, GB
Gemstone: Natural untreated, Ceylon blue Sapphire AAAA highest heirloom quality Total weight of
Category

2010s Unknown Art Deco Pendant Necklaces

Materials

Diamond, Sapphire, Blue Sapphire, 18k Gold

Certified 3 Carat Cornflower Blue Sapphire Diamond Ring 'Natural & Untreated'
Located in London, GB
Gemstone: natural untreated, Ceylon Blue Sapphire Colour: Cornflower blue Weight of Sapphire : 3
Category

2010s Unknown Art Nouveau Engagement Rings

Materials

Blue Sapphire, Sapphire, Diamond, Platinum

GIA Certified Ceylon Blue Sapphire 7.2 Cts 'Untreated, Unheated' Diamond Ring
Located in OVIEDO, AS
/unheated) and Diamond Ring. Blue Ceylon Sapphire, GIA certified (untreated, unheated) 7.20 carats
Category

Vintage 1950s Spanish Neoclassical Cluster Rings

Materials

Diamond, Blue Sapphire, 18k Gold

AGL Certified 8.463 ct. Unheated & Untreated Blue Sapphire & Fine Diamond Ring
By Pierre Famille
Located in Aspen, CO
Set in platinum and flanked by 4 long baguette cut diamonds, measuring 7.3 mm. These diamonds
Category

21st Century and Contemporary Contemporary Cocktail Rings

Materials

Diamond, White Diamond, Blue Sapphire, Platinum

AGL Certified 8.463 ct. Unheated & Untreated Blue Sapphire & Fine Diamond Ring
Located in Aspen, CO
Set in platinum and flanked by 4 long baguette cut diamonds, measuring 7.3 mm. These diamonds
Category

21st Century and Contemporary North American Contemporary Cocktail Rings

Materials

Diamond, Blue Sapphire, Platinum

1.20ct Untreated BIColour Blue Yellow Sapphire Diamond 18k Yellow Gold Halo Ring
Located in Birmingham, GB
Unique Untreated Bi Colour Sapphire And Diamond 18k Yellow Gold Halo Ring. ITSIT. Rare 1.20 Carat
Category

21st Century and Contemporary Cluster Rings

Materials

Yellow Sapphire, Blue Sapphire, Sapphire, White Diamond, Diamond, Yellow...

1.05ct Untreated Green Blue Sapphire 18k White Gold Diamond Surround Set Pendant
By Gems and Jewels UK
Located in Birmingham, GB
Untreated Green Blue Sapphire 18k White Gold Diamond Surround Set Pendant. 1.05 Carat sapphire
Category

21st Century and Contemporary Pendant Necklaces

Materials

Blue Sapphire, Green Sapphire, Diamond, Sapphire, Gold, 18k Gold, White ...

Emilio Jewelry Certified Natural untreated Cornflower Blue Sapphire Ring
By Emilio!
Located in New York, NY
Fifth Avenue, Featuring a true cornflower blue untreated Sri Lankan Ceylon Sapphire just over 5 Carats
Category

21st Century and Contemporary Three-Stone Rings

Materials

Blue Sapphire

Certified 7.5 Carat Cornflower Blue Sapphire Bezel Ring 'Natural & Untreated'
Located in London, GB
Make a bold statement with our custom-made ring featuring a 7.5-carat natural untreated Ceylon Blue
Category

21st Century and Contemporary English Art Deco Engagement Rings

Materials

Blue Sapphire, Sapphire, Diamond, 18k Gold

4.61ct untreated cushion-cut, blue sapphire ring. GIA certified.
Located in Los Angeles, CA
This striking 4.61-carat, untreated cushion-cut GIA certified, Ceylon Sapphire is set between two
Category

21st Century and Contemporary American Modern Bridal Rings

Materials

Blue Sapphire, Platinum

SSEF Switzerland Unheated Untreated 7 Carat Ceylon Blue Sapphire Ring
By Antinori Fine Jewels
Located in Rome, IT
Behold, a magnificent natural Blue Sapphire hailing from the renowned mines of Ceylon (Sri Lanka
Category

2010s Unknown Contemporary Cocktail Rings

Materials

Diamond, Sapphire, Blue Sapphire, Platinum

GRS Switzerland 3.70 Carat Oval Royal Blue Sapphire Ring Unheated Untreated
By Antinori Fine Jewels
Located in Rome, IT
GRS Switzerland 3.70 Carat Oval Royal Blue Sapphire Ring Unheated Untreated
Category

2010s Italian Modern Solitaire Rings

Materials

Diamond, White Diamond, Blue Sapphire, Platinum

Boucheron Paris Untreated Sapphire and Diamond Bracelet
By Boucheron
Located in New York, NY
streamlined mid-century aesthetic. Using alternating rows of richly-hued untreated blue sapphires and
Category

Vintage 1950s French Link Bracelets

Materials

Diamond, Sapphire, Platinum

GRS Switzerland Certified 9 Carat Oval Blue Sapphire RingUnheated and Untreated
By Antinori Fine Jewels
Located in Rome, IT
This incredible piece from Antinori di Sanpietro features a 9 carat Ceylon oval sapphire of blue
Category

2010s Italian Modern Cocktail Rings

Materials

Diamond, White Diamond, Blue Sapphire

Emilio Jewelry Certified 14.00 Carat Untreated Cornflower Blue Sapphire Ring
By Emilio!
Located in New York, NY
Fifth Avenue, Focal point: Gorgeous cornflower blue 12.20ct + Unheated sapphire Total weight listed in
Category

21st Century and Contemporary Three-Stone Rings

Materials

Blue Sapphire

Yellow Gold Victorian Natural Untreated Sapphire Diamond Bangle circa 1860
Located in London, GB
Seven natural, untreated blue sapphires in a period, Victorian bangle (bracelet) mounted with white
Category

Antique 1860s British Victorian Bangles

Materials

Diamond, White Diamond, Sapphire, Blue Sapphire, 18k Gold, Yellow Gold

Yellow Gold Victorian Natural Untreated Sapphire Diamond Bangle, circa 1860
Located in London, GB
Seven natural, untreated blue sapphires in a period, Victorian bangle (bracelet) mounted with white
Category

Antique 1860s British Victorian Bangles

Materials

Diamond, White Diamond, Sapphire, Blue Sapphire, 18k Gold, Yellow Gold

Edwardian 36.0 Carat Untreated Multigem Stone Diamond Bracelet
Located in Napoli, IT
This magnificent Edwardian era bracelet loaded with 36.00 Ct of coloured gemstones, untreated and
Category

Antique Early 1900s European Edwardian Link Bracelets

Materials

Diamond, Topaz, Tourmaline, Imperial Topaz, 18k Gold

Certified 7.5 Carat Ceylon Sapphire Ring 'Natural & Untreated' Cornflower Blue
Located in London, GB
Gemstone: natural untreated, Ceylon Blue Sapphire AAAA highest heirloom quality Weight of Sapphire
Category

21st Century and Contemporary English Art Deco Engagement Rings

Materials

Diamond, Sapphire, 18k Gold

7.49ct untreated Blue Sapphire, 1.40ct Mozambique Paraiba Tourmaline ring.
Located in Los Angeles, CA
An untreated 7.49ct, GIA certified Ceylon Sapphire is paired with two Paraiba-type Tourmalines from
Category

21st Century and Contemporary American Modern Engagement Rings

Materials

Sapphire, Tourmaline, Paraiba, 18k Gold, Platinum

Untreated Kashmir Sapphire Ring, 3.32 Carats
Located in New Orleans, LA
Kashmir origin and untreated, while the diamonds are both certified by the GIA to be of E and F color and
Category

21st Century and Contemporary American Modern Engagement Rings

Materials

Blue Sapphire, Sapphire, White Diamond, Diamond, Platinum

IGI Certified 1.46ct Colour Change Untreated Fancy Cut Sapphire Diamond Pendant
By Gems and Jewels UK
Located in Birmingham, GB
IGI Certified Untreated Fancy Pentagon Cut Untreated Colour Change Sapphire & Diamond 18k White
Category

21st Century and Contemporary Pendant Necklaces

Materials

Purple Sapphire, White Diamond, Diamond, Green Sapphire, Yellow Sapphire...

IGI Certified Untreated Bi Colour Sapphire & Diamond Three Stone Platinum Ring
Located in Birmingham, GB
IGI Certified Natural Bi Colour Untreated Australian Sapphire Platinum Three Stone Ring. Rare IGI
Category

21st Century and Contemporary Three-Stone Rings

Materials

Sapphire, Blue Sapphire, Yellow Sapphire, Green Sapphire, Diamond, Platinum

Natural Untreated 31.74 Carat Sapphire and Diamond Ring in Platinum, Circa 1950
Located in London, GB
A natural untreated 31.74 carat sapphire and diamond ring in platinum, circa 1950. The truly
Category

Vintage 1950s Unknown Retro Cocktail Rings

Materials

Diamond, Blue Sapphire, Platinum

GIA Certified Untreated Asscher Sapphire Diamond 18k White Gold Three Stone Ring
By Gems and Jewels UK
Located in Birmingham, GB
GIA Certified Deep Blue Untreated Australian Sapphire & Diamond 18k White Gold Three Stone Ring
Category

21st Century and Contemporary Three-Stone Rings

Materials

White Diamond, Diamond, Sapphire, Blue Sapphire, Green Sapphire, White G...

GIA Certified 1.67ct Untreated Bi Color Sapphire Diamond 18k White Gold Necklace
Located in Birmingham, GB
Natural Untreated Bi Colour Sapphire & Diamond 18k White Gold Pendant Necklace. Rare GIA Certified
Category

21st Century and Contemporary Pendant Necklaces

Materials

Diamond, White Diamond, Sapphire, Blue Sapphire, Yellow Sapphire, Green ...

Certified 2 Carat Ceylon Sapphire & Diamond Halo Ring 'Natural & Untreated'
Located in London, GB
Blue Sapphire. The lively pastel blue hue is accentuated by conflict-free diamonds, all set in
Category

21st Century and Contemporary English Modern Engagement Rings

Materials

Diamond, Sapphire, 18k Gold

Untreated Tanzanite Pendant, 104.39 Carats
Located in New Orleans, LA
has been certified by the American Gemological Laboratories (AGL) as being untreated, meaning that no
Category

21st Century and Contemporary Modern Pendant Necklaces

Materials

Diamond, Tanzanite, Platinum, 18k Gold

GIA Certified Brazilian Alexandrite Untreated 0.90 Carat And Diamond Ring
By Gad & Co.
Located in Miami, FL
GIA Certified Untreated Color Changing Brazilian Alexandrite. The best that Mother Nature has to
Category

21st Century and Contemporary Brazilian Contemporary Cocktail Rings

Materials

Alexandrite, Diamond, Gold, 18k Gold, Yellow Gold

GIA Certified Untreated Parti Colour Sapphire Diamond 18k White Gold Ring ITSIT
Located in Birmingham, GB
ITSIT Natural Parti Colour Untreated Australian Sapphire 18k White Gold Three Stone Ring. Rare GIA
Category

21st Century and Contemporary Three-Stone Rings

Materials

Diamond, Sapphire, Blue Sapphire, Yellow Sapphire, Green Sapphire, 18k G...

2.14ct untreated cushion Ceylon Sapphire engagement ring.
Located in Los Angeles, CA
18K white with rose gold ring, featuring a delightful 2.14-carat, untreated Blue Sapphire from Sri
Category

21st Century and Contemporary American Modern Engagement Rings

Materials

Diamond, Sapphire, Blue Sapphire, 18k Gold, Rose Gold, White Gold

Rare Untreated 16.27 Carat Oval Cut Ceylon Sapphire and Double Diamond Halo Ring
Located in Scottsdale, AZ
diamond cocktail ring is a true masterpiece. The focal point of this extraordinary piece is a mesmerizing
Category

21st Century and Contemporary Unknown Contemporary Cocktail Rings

Materials

Diamond, Sapphire, Blue Sapphire, Platinum

Tiffany & Co. Untreated Yogo Sapphire Bracelet, 4.68 Carats
By Tiffany & Co.
Located in New Orleans, LA
jewels, which weigh a combined 4.68 carats, are certified by the AGL and GIA to be untreated, making them
Category

20th Century American Art Deco Link Bracelets

Materials

Diamond, White Diamond, Sapphire, Blue Sapphire, Platinum

GIA Certified Untreated Vivid Green Thai Sapphire & Diamond 18k Gold Halo Ring
By Gems and Jewels UK
Located in Birmingham, GB
GIA Certified Vivid Green Thai Sapphire And Diamond 18k Yellow And White Gold Halo Ring. 1.50
Category

21st Century and Contemporary Cluster Rings

Materials

White Diamond, Diamond, Sapphire, Blue Sapphire, Yellow Sapphire, Green ...

Natural Untreated 14.50 Carat Sapphire Diamond Ring Set in Platinum
Located in London, GB
A natural untreated 14.50 carat sapphire diamond ring set in platinum. This truly stunning ring is
Category

2010s Unknown Belle Époque Cocktail Rings

Materials

Diamond, Sapphire, Gold, 18k Gold, Yellow Gold, Platinum

Art Deco 50.00 Ct Natural untreated Sapphire Diamond Rare Bracelet
Located in Napoli, IT
refined line of graduated natural no heat Emerald cut Sapphires – Basaltic origin – deep dark Blue colour
Category

Vintage 1910s European Art Deco Link Bracelets

Materials

Diamond, Sapphire, 14k Gold, Silver

Untreated Teal Sapphire Ring, 4.03 Carats
Located in New Orleans, LA
Displaying a captivating teal blue hue, the 4.03-carat brilliant-cut sapphire at the center of this
Category

21st Century and Contemporary Modern Cocktail Rings

Materials

Diamond, White Diamond, Sapphire, Platinum

Natural Untreated Australian 16.30ct Boulder Opal Diamonds Necklace 18k Gold
By Renata Bernard
Located in Sydney, AU
16.30ct boulder opal hailing from Winton mines in Queensland, Australia. The attractive blue-green play-of
Category

2010s Australian Contemporary Pendant Necklaces

Materials

Diamond, Opal, 18k Gold, Yellow Gold

Natural Untreated Australian 6.65ct Boulder Opal Diamonds Necklace 18k Gold
By Renata Bernard
Located in Sydney, AU
opal’s play-of-colour featuring subtle hues of pink, orange and blue is entirely magnificent. This
Category

2010s Australian Contemporary Pendant Necklaces

Materials

Diamond, Opal, 18k Gold, Yellow Gold

Victorian 8.80 C. Natural Untreated Sapphire Rose Cut Diamond Drop Earrings
Located in Napoli, IT
selection of 4 oval faceted 100% Natural untreated/unheated Sky Blue Sapphires – Ceylon origin 4 oval
Category

Antique 1880s European Victorian Dangle Earrings

Materials

Diamond, Sapphire, 18k Gold, Silver

GIA Certified 2.43 Ct Untreated Bi Color Sapphire & Diamond 18k White Gold Ring
Located in Birmingham, GB
Natural Bi Colour Untreated Sapphire & Diamond 18k White Gold Three Stone Ring. Rare GIA Certified
Category

21st Century and Contemporary Three-Stone Rings

Materials

Diamond, Sapphire, Blue Sapphire, Yellow Sapphire, Green Sapphire, Gold,...

Boucheron Natural Untreated 12.80 Carat Sapphire Diamond Ring Set in Platinum
By Boucheron
Located in London, GB
A Boucheron natural untreated 12.80 carat sapphire diamond ring set in platinum, circa 1950. This
Category

Vintage 1950s French Art Deco Cocktail Rings

Materials

Diamond, Sapphire, Platinum

Edwardian 4.80 Ct Natural Untreated Sapphire and Diamond three stone ring
Located in Napoli, IT
) later assay punch inside Gems: 1 round cabochon cut natural untreated blue sapphire of approx 4.80 Ct
Category

Antique Early 1900s European Edwardian Three-Stone Rings

Materials

Diamond, Sapphire, 18k Gold, Silver

GIC Certified 1.07 Carat Ceylon Natural Untreated Sapphire Diamond Gold Ring
Located in Weston, MA
size: US 7.0 "Diana's Legacy" - this GIC Certified 1.07 Ct Ceylon Natural Untreated Sapphire Diamond
Category

2010s American Artist Cocktail Rings

Materials

Diamond, Sapphire, Gold, 18k Gold

Impressive 15.35 Carat Rare Untreated Oval Ceylon Sapphire and Diamond Ring
Located in Scottsdale, AZ
This absolutely jaw dropping, rare oval cut sapphire and diamond cocktail ring is one of those
Category

20th Century Sri Lankan Contemporary Cocktail Rings

Materials

Sapphire, Diamond, White Gold, 14k Gold, Gold

IGI Certified 19.82ct Untreated Burma Star-Sapphire 4.01ct Diamonds Gold Ring
Located in Hong Kong, HK
elegance with our Not-treated Burma star sapphire ring — a mesmerizing greyish-blue hue exhibiting a
Category

21st Century and Contemporary Hong Kong Cocktail Rings

Materials

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

Jade Pendant Apple Green Certified Untreated Midcentury
Located in Southbury, CT
A stunning jade pendant featuring an apple-green cylinder of certified natural and untreated
Category

Mid-20th Century Unknown Artisan Pendant Necklaces

Materials

Jade, Blue Sapphire, 14k Gold, Platinum

Untreated Brazilian Paraiba Asymmetrical Ring, 1.38 Carats
Located in New Orleans, LA
America as originating in Brazil and being completely untreated, meaning its striking blue color is
Category

21st Century and Contemporary Modern Cocktail Rings

Materials

Paraiba, Tourmaline, Pink Diamond, White Diamond, Platinum

Certified 3, 65 Ct Natural Untreated Sapphires and Diamonds Drop Earrings
Located in București, B
3.25 carats total weight and displays top intense dark blue color. The elegant drop white gold earrings
Category

Antique Early 19th Century Romanian Art Nouveau Drop Earrings

Materials

Diamond, Sapphire, 14k Gold

Australian Natural Untreated 12.84ct Black Opal Diamond Drop Earrings 18K Gold
By Renata Bernard
Located in Sydney, AU
pairing of black crystal opals (12.84ct) is complemented by the brilliant flash of 30 diamonds. The opal’s
Category

2010s Australian Contemporary Drop Earrings

Materials

Diamond, Black Opal, Opal, White Gold, 18k Gold

Victorian 7.20 Ct Natural Untreated Sapphire 2.40 Ct Diamond 18 Kt Bangle
Located in Napoli, IT
, beautiful Blue colour and radiant gemmy rare Sapphires Complemented by a duo of old mine cut Diamonds inter
Category

Antique Late 19th Century European Victorian Bangles

Materials

Diamond, Sapphire, 18k Gold

Rare 6.18 Carat Untreated Emerald Cut Ceylon Sapphire and Diamond Platinum Ring
Located in Scottsdale, AZ
blue stone against the bright white diamonds really catches the viewers eye. Exquisite detail work
Category

Early 20th Century Unknown Contemporary Cocktail Rings

Materials

Diamond, Sapphire, Platinum

3.10 Carat Untreated Oval Mixed Cut Sapphire and Diamond Ring in Platinum
Located in Scottsdale, AZ
Absolutely breathtaking sapphire and diamond ring. The brilliant blue stone against the bright
Category

Early 20th Century Unknown Edwardian Cocktail Rings

Materials

Diamond, Sapphire, Platinum

Art Deco 1.70 Ct Natural Untreated Sapphire 2.20 Ct Diamond Platinum Ring
Located in Napoli, IT
old mine cut Diamonds nestled into Platinum making a sparkle frame to the main Sapphire of old mine
Category

Vintage 1930s European Art Deco Cluster Rings

Materials

Diamond, Sapphire, Platinum

Platinum Sapphire Ring, 3.53 Carat Untreated Ceylon Sapphire GIA Certified
Located in Tampa, FL
New platinum 950 ring set with an oval cut blue Ceylon sapphire, 9.19 x 7.66 x 5.58 mm with a carat
Category

2010s Sri Lankan Engagement Rings

Materials

Diamond, Sapphire, Blue Sapphire, Platinum

Raymond Yard Untreated Paraiba Tourmaline Necklace, 26.08 Carats
By Raymond C. Yard
Located in New Orleans, LA
features 11 of the storied gems in varying hues of blue, purple and green. Totaling 26.08 carats, the
Category

21st Century and Contemporary Modern Link Necklaces

Materials

Diamond, White Diamond, Tourmaline, Paraiba, Platinum

Color Change Sapphire Ring, 7.64 Carat Untreated Sapphire Platinum GIA Certified
Located in Tampa, FL
slightly grayish blue color GIA B 4/3, set with 44 round brilliant cut diamonds with a weight 1.15 ct's VS
Category

2010s Sri Lankan Engagement Rings

Materials

Diamond, Sapphire, Blue Sapphire, Purple Sapphire, Platinum

Untreated Ceylon Sapphire Ring by Oscar Heyman, 8.53 Carats
By Oscar Heyman
Located in New Orleans, LA
An 8.53-carat untreated Ceylon sapphire displays its coveted royal blue hue at the center of this
Category

21st Century and Contemporary American Modern Engagement Rings

Materials

Diamond, White Diamond, Sapphire, Platinum

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Untreated Blue Diamonds For Sale on 1stDibs

Browse a vast assortment of untreated blue diamonds for sale on 1stDibs. These distinct designs — crafted with great care and often made from Platinum, Gold and 18k Gold — can elevate any look. Our collection of these items for sale includes 14 vintage editions and 25 modern creations to choose from as well. Our collection is diverse and broad-ranging, and pieces in stock date back to the 19th Century while others were produced as recently as the 21st Century. Our collection of untreated blue diamonds includes designs that are universally popular, but Modern and Art Deco styles, specifically, are sought with frequency. Fine Jewels UK, Merkaba and AB Jewelry NYC each produced beautiful examples of these items that are worth considering. A selection of oval cut, cushion cut and round cut can be found today on these pages. If you’re browsing the variety of untreated blue diamonds for sale, you’ll find that many are available today for women, but there are still pieces to choose from for men.

How Much are Untreated Blue Diamonds?

On average, untreated blue diamonds at 1stDibs sell for $19,000, while they’re typically $1,329 on the low end and $6,500,000 for the highest priced versions of this item.
Questions About Untreated Blue Diamonds
  • 1stDibs ExpertAugust 17, 2021
    Yes, a blue diamond is a real diamond. Contrary to popular belief, diamonds come in an array of colors aside from clear. Blue diamonds are neither color-treated nor enhanced to deliver the icy shade, which can range from a seafoam green to a royal blue.
  • 1stDibs ExpertFebruary 22, 2021
    A light blue 0.5 carat diamond is worth roughly $26,280 on average. A deep blue 0.25 diamond, costs $75,000 on average. Blue diamonds are the rarest color of diamond, only found in three areas of the world: Australia, South Africa, and India. The deeper the blue diamonds are even more rare and therefore more expensive.
  • 1stDibs ExpertApril 5, 2022
    Yes, there are blue-green diamonds. However, natural ones are very rare, so most are man-made. The Dresden Green is the most famous example of a genuine blue-green diamond gemstone. You can find a wide selection of diamond gemstone jewelry on 1stDibs.
  • 1stDibs ExpertApril 22, 2024
    Yes, Blue Nile diamonds are legit. The jewelry maker offers both natural diamonds sourced from mines and lab-created diamonds produced via controlled scientific techniques. Both types of diamonds are legitimate or genuine gemstones. Find a range of Blue Nile diamond jewelry on 1stDibs.
  • 1stDibs ExpertOctober 5, 2021
    The price of a natural blue diamond is determined first by the color and then its clarity. Depending on these factors and the size chosen, there is a huge variation in price. You will find the blue diamond price range from under $2,000 to over $10,000 on 1stDibs.
  • 1stDibs ExpertOctober 5, 2021
    A blue diamond ring worth depends on the type of blue diamond. Ideally, a blue diamond’s cost is based on its 4Cs (cut, color, clarity, and carat), with the intensity of the color being the dominant factor. A blue diamond ring price ranges between $6,800 to $11,200. On 1stDibs, you can find a range of exquisite antique and vintage blue diamond rings.