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12 Carat Oval Blue Sapphire

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8.30 Carat Aquamarine, Diamond and Blue Sapphire Cocktail Ring
Located in Miami, FL
approximately .50 carats total, G color, VS-SI clarity and blue sapphires weighing approximately 2.73 carats
Category

21st Century and Contemporary Unknown Modern Cocktail Rings

Materials

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

New 1.86 Carat Oval Sapphire Diamond cut Sapphire Y Gold PL Sterling Earrings
Located in Eagan, MN
sterling dome that is full of various colored diamond cut blue sapphires. The earrings themselves are 17 x
Category

2010s Unknown Art Deco Stud Earrings

Materials

Sapphire, Blue Sapphire, Gold, Yellow Gold, Silver, Sterling Silver

New 102.70 Carat Blue Sapphire Diamond Cut Sapphire 18k Gold PL Sterl Pendant
Located in Eagan, MN
setting. The total carat weight is 102.70. The main stone is 22 x 16 x 12 mm and alone is 58 carats
Category

2010s Unknown Art Deco Pendant Necklaces

Materials

Sapphire, Blue Sapphire, Diamond, Silver, Sterling Silver, Gold, 18k Gol...

New 7.5 Carat Oval Diamond Cut Sapphire 24k Yellow Gold PLSterling Silver Ring
Located in Eagan, MN
center stone sapphire that is 7.55 carats. It measures 12 x 11 mm and is flanked by 32 brilliant diamond
Category

2010s Unknown Art Deco Cocktail Rings

Materials

Blue Sapphire, Sapphire, Sterling Silver, Silver, Yellow Gold, 24k Gold,...

Berca 12 Karat Emerald Cut Brazilian Aquamarine Oval Sapphire Cocktail Ring
By Berca Atelier
Located in Valenza, IT
, 16.5x11.9mm) in a Chic yet Timeless two 1.09 Carat Natural Ceylon Oval Blue Sapphire 18Kt White Gold Cocktail
Category

21st Century and Contemporary Italian Contemporary Engagement Rings

Materials

Aquamarine, Sapphire, 18k Gold, White Gold

Berca 12 Karat Emerald Cut Brazilian Aquamarine Oval Sapphire Cocktail Ring
By Berca Atelier
Located in Valenza, IT
, 16.5x11.9mm) in a Chic yet Timeless two 1.09 CaratNatural Ceylon Oval Blue Sapphire 18Kt White Gold Cocktail
Category

21st Century and Contemporary Italian Contemporary Engagement Rings

Materials

Aquamarine, Sapphire, 18k Gold, White Gold

Marin Fleur Oval Blue Sapphire and Opal Cluster Ring in 9K Yellow Gold
Located in Bangkok, TH
blue sapphire center and opal-accented. Ring Information Metal: 9K Yellow Gold Weight: 3.15 g
Category

21st Century and Contemporary Thai Cluster Rings

Materials

Opal, Blue Sapphire, 9k Gold, Yellow Gold

1.92 Carat Natural Royal Blue Sapphire Diamond Ballerina Ring set in Platinum
Located in Tokyo, JP
A beautiful ring featuring 1.92 Carat Natural Blue Sapphire and 1.02 Carats Diamond Accents set in
Category

20th Century Japanese Modern Cocktail Rings

Materials

Diamond, Sapphire, Blue Sapphire, Platinum

New Sri Lanka 6.75 Carat Blue Sapphire Diamond Cut Sapphire Sterling Ring
Located in Eagan, MN
. It is an oval cut stone and measures 12 x 9.8 mm and is flanked by diamond cut white sapphires on the
Category

2010s Unknown Art Deco Cocktail Rings

Materials

Sapphire, Blue Sapphire, Silver, Sterling Silver

1.00 Carat Natural Blue Sapphire and Diamond Tension-Set Ring Made in Platinum
Located in Tokyo, JP
A beautiful ring featuring 1.00 Carat, Natural Sapphire and 0.14 Carats Diamond Accents set in
Category

21st Century and Contemporary Japanese Modern Engagement Rings

Materials

Diamond, Sapphire, Blue Sapphire, Platinum

Antique Blue Sapphire and Multi-Diamond Poison Ring in 12 Karat Gold and Silver
Located in Scottsdale, AZ
Sapphire Total Carat Weight: 1.16 CTW Sapphire Cut: Oval, baguette, and round cut Sapphire Color: Blue
Category

Antique Late 19th Century Unknown Contemporary Cocktail Rings

Materials

Diamond, Sapphire, Brown Diamond, Blue Sapphire, Gold, 10k Gold, Yellow ...

GRS Certified 4.35 Carat Natural Royal Blue Ceylon Sapphire Ring Set in Platinum
Located in Tokyo, JP
A beautiful Ring featuring a GRS Certified 4.35 Carat Natural Ceylon Royal Blue Sapphire and 1.94
Category

Late 20th Century Japanese Modern Cocktail Rings

Materials

Diamond, Sapphire, Blue Sapphire, Platinum

1.53 Carat Natural Blue Sapphire Diamond Ring Set in Platinum and 18K Gold
Located in Tokyo, JP
A beautiful ring featuring a 1.53 Carat Natural Blue Sapphire and 0.58 Carats Diamond Accents set
Category

21st Century and Contemporary Japanese Modern Engagement Rings

Materials

Diamond, Sapphire, Blue Sapphire, Platinum, 18k Gold

Estate Blue Sapphire Diamond Platinum Ring
Located in Los Angeles, CA
sapphire and diamond ring. SPECIFICATIONS: GEMSTONES: one faceted, oval blue sapphire weighing
Category

1990s Contemporary Cluster Rings

Materials

Diamond, Blue Sapphire, Platinum

New 6.60 Carat Blue Sapphire Diamond Cut Tsavorite Rose Gold PL Sterling Ring
Located in Eagan, MN
Sterling Silver. The ring is a size 7.25. The stone is a beautiful fancy oval cut sapphire stone and is
Category

21st Century and Contemporary Unknown Art Deco Cocktail Rings

Materials

Tsavorite, Blue Sapphire, Sapphire, Sterling Silver, Rose Gold, Gold Pla...

French 1900s Sapphire 18 Karat Yellow Gold Leafy Crown Oval Ring
Located in Poitiers, FR
millegrain setting. Weight of the sapphire : 1 carat approximately. Height : 12 mm approximately, width
Category

Antique Early 1900s French Belle Époque Engagement Rings

Materials

Sapphire, Blue Sapphire, Gold, 18k Gold, Yellow Gold

9.00 Carats Natural Burma Blue Star Sapphire in 14K White Gold Men s Ring
Located in Los Angeles, CA
N/A Size 11 Center Stone Quantity 1 Total Weight 9.00 carats Color Blue Shape Oval Cut Cabochon
Category

21st Century and Contemporary Cocktail Rings

Materials

Star Sapphire, White Gold

2.99 Ct. T.W. Blue Sapphire Hoop Earrings in 14K Yellow Gold
Located in New York, NY
jewelry is crafted with 12 oval cut Blue Sapphire stones in a prong setting affixed to a 14K yellow gold
Category

2010s Contemporary Hoop Earrings

Materials

Blue Sapphire, 14k Gold, Yellow Gold

2.24 Carat Sapphire Diamond Ruby Emerald Yellow Clip Post Gold Earrings
Located in Stamford, CT
diamonds in 14k yellow gold. 2 oval blue sapphires, approx. 1.80cts 12 step cut square rubies, approx
Category

Late 20th Century Lever-Back Earrings

Materials

Diamond, Emerald, Ruby, Sapphire, Blue Sapphire, Gold, 14k Gold, Yellow ...

18K Gold 1.70ct Blue Sapphire 0.12ct Diamond Floral Stud Earrings
Located in เกาะสมุย, TH
Presented here is a very fine and gorgeous oval blue sapphire and diamond stud earring. Floral
Category

21st Century and Contemporary Stud Earrings

Materials

Diamond, Blue Sapphire, 18k Gold

2.03 Carat Natural Sapphire and Diamond Ring Set in Platinum
Located in Tokyo, JP
A beautiful ring featuring 2.03 Carat, Natural Sapphire and 0.88 Carats Diamond Accents set in
Category

21st Century and Contemporary Japanese Modern Cluster Rings

Materials

Diamond, Sapphire, Blue Sapphire, Platinum

2.70 Carat Sapphire and Diamond Ring
Located in Miami, FL
Platinum ring featuring an oval cut Sapphire weighing approximately 1.50cts accented by 12 round
Category

21st Century and Contemporary American Engagement Rings

Materials

Diamond, White Diamond, Blue Sapphire, Platinum

1.99 Carat Natural Sapphire and Diamond Band Ring Set in Platinum
Located in Tokyo, JP
A beautiful band style engagement ring featuring a 1.99 Carat Natural Blue Sapphire and 0.22 Carats
Category

21st Century and Contemporary Japanese Modern Engagement Rings

Materials

Diamond, Sapphire, Blue Sapphire, Platinum

1.75 Carat Dome Natural Cabochon Sapphire Diamond Halo Platinum Engagement Ring
Located in Stamford, CT
sugar loaf cornflower blue cabochon Sapphire. 1 Oval natural cabochon Sapphire 7.9 x 6.6 x 3.9mm, CMG
Category

Vintage 1910s Engagement Rings

Materials

Diamond, Blue Sapphire, Platinum

4.11 Carat Pink Morganite Multi Color Sapphire Cocktail Ring in 14K Rose Gold
By Roshe Jewels
Located in Los Angeles, CA
Morganite (Oval Cut) = 3.39 carats 20 Multi-Color Sapphires (Round Cut) = 0.61 carats 12 Round Cut Diamonds
Category

21st Century and Contemporary American Contemporary Cocktail Rings

Materials

Diamond, Morganite, Sapphire, Blue Sapphire, Pink Sapphire, Green Sapphi...

Harry Winston 5.78 Carat Natural Sapphire and Diamond Platinum Cocktail Ring
By Harry Winston
Located in Bay Harbor Islands, FL
Harry Winston platinum cocktail ring featuring an oval cut natural blue Ceylon sapphire weighing
Category

Late 20th Century American Modern Cocktail Rings

Materials

Diamond, Blue Sapphire, Platinum

GIA Certified 2.15 Carat Unheated Sapphire and Diamond Ring made in Platinum
Located in Tokyo, JP
A beautiful ring featuring a GIA Certified 2.15 Carat Natural, Unheated Sapphire and 0.42 Carats
Category

21st Century and Contemporary Japanese Modern Cocktail Rings

Materials

Diamond, Sapphire, Blue Sapphire, Platinum

Estate 14k White Gold 17.05ctw Oval Sapphire Diamond Statement Tennis Bracelet
Located in Montclair, NJ
display truly fine and rich medium to deep blue colors and total approximately 12 carats, while the
Category

Late 20th Century Unknown Tennis Bracelets

Materials

Diamond, Sapphire, 14k Gold, White Gold

Vintage Oval Sapphire Diamond Ring 5.50ct Original 1940s Art Deco Platinum Anti
Located in Dearborn, MI
Featuring a Huge 5.00ct Genuine Natural 12 x 9mm Blue Oval Sapphire Center Tapered Baguette Cut Mined
Category

Vintage 1940s Art Deco Engagement Rings

Materials

Diamond, Sapphire, Platinum

Blue Sapphire Ceylan and Diamonds on White Gold 18 Karat
Located in Vannes, FR
Blue Sapphire and Diamonds White Gold 18. k Ring Blue Sapphire Form C 2,38 Carat 12 Diamonds Color
Category

21st Century and Contemporary French Contemporary Engagement Rings

Materials

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

New 10 Carat Color Changing Sapphire Diamond Cut Sapphire R Gold PLNecklace
Located in Eagan, MN
This pendant is just gorgeous! It has a 10.04 Carat Purple/Blue Color Changing Sapphire that
Category

21st Century and Contemporary Unknown Art Deco Choker Necklaces

Materials

Sapphire, Gold, Rose Gold, Sterling Silver

GIA Certified 2.07 Carat Natural Sri Lanka/Ceylon Sapphire Ring Set in Platinum
Located in Tokyo, JP
A beautiful Cocktail ring featuring a GIA Certified 2.07 Carat Natural, Ceylon Blue Sapphire and
Category

21st Century and Contemporary Japanese Modern Cocktail Rings

Materials

Diamond, Sapphire, Blue Sapphire, Platinum

18K White Gold 0.74ct Blue Sapphire 0.20ct Diamond Fine Sunburst Ring
Located in เกาะสมุย, TH
: Natural, blue, oval cut, heat-treatment, 0.74 carats, 6 x 5.2 mm Diamonds: Natural, brilliant cut, VS1, G
Category

21st Century and Contemporary Thai Engagement Rings

Materials

Diamond, Blue Sapphire, 18k Gold, White Gold

Oval Sapphires with Diamond Halo Eternity Ring Set in 14k White Gold
By Gregory Mikaelian Sons, Inc.
Located in Los Angeles, CA
A breathtakingly beautiful diamond wedding band featuring 12 oval cut blue sapphires set in 14k
Category

2010s American Contemporary Fashion Rings

Materials

Diamond, Sapphire, 14k Gold, White Gold

2.30 Carat Princess Cut Natural Sapphire and Diamond Half Eternity Band Ring
Located in Tokyo, JP
A beautiful half eternity band ring featuring 2.30 Carats Natural Princess Cut Sapphires and 0.65
Category

21st Century and Contemporary Japanese Modern Cluster Rings

Materials

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

2.74 Carat Sapphire and Diamond Ballerina Ring Set in Platinum
Located in Tokyo, JP
A stunning Ballerina Ring featuring a 2.74 Carat Sapphire and 0.61 Carats of Diamond Accents set in
Category

2010s Japanese Modern Cluster Rings

Materials

Diamond, Sapphire, Platinum

No Reserve- 18K White Gold 0.71ct Blue Sapphire 0.14ct Diamond Unisex Ring
Located in เกาะสมุย, TH
Sapphire: Natural, blue, oval cut, heat-treatment, 0.71 carats Diamonds: Natural, baguette cut, VS-SI, G-H
Category

21st Century and Contemporary Thai Band Rings

Materials

Diamond, Blue Sapphire, 18k Gold, White Gold

Retro Vintage Sapphire and Opal Ring in 14 Karat Gold, 5.30 Carat
Located in San Francisco, CA
This Retro Vintage Sapphire and Opal ring is just so awesome! I love it! Crafted in 14K Yellow
Category

Mid-20th Century American Retro Cluster Rings

Materials

Opal, Blue Sapphire, 14k Gold

Vintage 14k White Gold GIA NO HEAT Oval Sapphire Baguette Diamond Ballerina Ring
Located in Montclair, NJ
features a gorgeous, GIA certified, sapphire at its center. The beautiful gemstone has an oval brilliant
Category

Vintage 1970s Cocktail Rings

Materials

Diamond, Sapphire, 14k Gold, White Gold

18K White Gold 1.70ctw Royal Blue Sapphire Diamond 3 Flowers Long Bypass Ring
Located in Montclair, NJ
--Stone(s):-- (12) Natural Genuine Sapphire - Oval Custom Cut - Prong Set - True Royal Blue Color
Category

21st Century and Contemporary Cocktail Rings

Materials

Diamond, Blue Sapphire, 18k Gold, White Gold

1.56 Carat Natural Sapphire and Diamond Engagement Ring Set in Platinum
Located in Tokyo, JP
A stunning Engagement Ring featuring a 1.56 Carat Natural Sapphire and 0.12 Carats of Yellow
Category

2010s Japanese Modern Engagement Rings

Materials

Diamond, Sapphire, Platinum

New Tanzania 3.40 Carat Ametrine Diamond Cut Sapphire R Gold Pl Sterling Ring
Located in Eagan, MN
oval cut Ametrine stones and 12 4mm diamond cut Yellow Sapphires. It's a beautiful combination of
Category

2010s Unknown Art Deco Cocktail Rings

Materials

Yellow Sapphire, Amethyst, Blue Sapphire, Sapphire, Rose Gold, Gold Plat...

Very Fine 8 Carat Unheated Ceylon Sapphire Diamond Gold Ring
Located in Bal Harbour, FL
The bright blue app. 8.57 carat oval sapphire is surrounded by 12 round brilliant cut diamonds
Category

Early 2000s Italian Cocktail Rings

Materials

Blue Sapphire, White Diamond, 18k Gold

New African 3.5 Carat Aquamarine Sapphire Sterling Pendant Adjustable Necklace
Located in Eagan, MN
very high quality stones. The main stone is 3.5 cts. It's an oval cut stone and measures 12 x 10 mm
Category

2010s Unknown Art Deco Pendant Necklaces

Materials

Aquamarine, Sapphire, Silver, Sterling Silver

4.85 Carat Sapphire and Diamonds Eternity Band 18 Karat Gold
Located in Miami, FL
has twelve ( 12 ) oval shape sapphires with an estimated total weight of 4.30 carats. The sapphire
Category

2010s American Band Rings

Materials

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

GIA Certified 1.91 Carat Sri Lankan Sapphire Tank Ring Set in Platinum
Located in Tokyo, JP
A beautiful GIA certified 1.91 Carat Oval-Shaped Sapphire Tank Ring set in Platinum. The Sapphire
Category

2010s Japanese Modern Signet Rings

Materials

Sapphire, Platinum

New 9.20 Carat Aquamarine Diamond Cut Sapphire Sterling Pendant Necklace
Located in Eagan, MN
carats. It measures 16.3 x 12 mm and has beautiful by diamond cut blue sapphires speckled throughout the
Category

2010s Unknown Art Deco Pendant Necklaces

Materials

Aquamarine, Sapphire, Silver, Sterling Silver

GIA 8.04ct Blue Sapphire Diamond Platinum Ballerina Halo Cocktail Ring
Located in Miami, FL
Platinum,  Featuring in the center an exceptional Oval Cut GIA Blue Sapphire of 8.04 carats with minor heat
Category

21st Century and Contemporary Modern Cocktail Rings

Materials

Diamond, Blue Sapphire, Platinum

1.61 Carat, Natural, Pear Padparadscha Sapphire and Diamond Ring set in Platinum
Located in Tokyo, JP
A beautiful ring featuring AIGS Certified 1.61 Carat Natural Padparadscha Sapphire and 0.98 Carats
Category

21st Century and Contemporary Japanese Modern Cocktail Rings

Materials

Padparadscha Sapphire , Sapphire, Diamond, Platinum

4.22 Carat Natural Padparadscha (GIA) Sapphire and Diamond Ring set in Platinum
Located in Tokyo, JP
A beautiful ring featuring GIA Certified 4.225 Carat Natural Padparadscha Sapphire and 0.66 Carats
Category

21st Century and Contemporary Japanese Modern Cocktail Rings

Materials

Diamond, Sapphire, Padparadscha Sapphire , Platinum

GIA Certified 25.00 Carat Natural Star Sapphire Diamond Art Deco Platinum Ring
Located in Stamford, CT
. 1 oval cabochon blue Star Sapphire, approx. total weight 25.00cts, no heat, 15.31 x 13.41 x 12.38mm
Category

Early 20th Century Cocktail Rings

Materials

Diamond, Sapphire, Star Sapphire, Platinum

Emerald Blue Sapphire Diamond Art Deco Style Engagement Ring in 18K Yellow Gold
Located in Bangkok, TH
opulent 1.21 carat oval emerald surrounded by French cut blue sapphire and sparkling round diamonds. This
Category

21st Century and Contemporary Thai Art Deco Engagement Rings

Materials

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

2.21 Carat Natural Teal Sapphire and Diamond Ballerina Ring Set in Platinum
Located in Tokyo, JP
A beautiful Cocktail Ballerina ring featuring a 2.21 Carat Natural Blue Sapphire and 0.60 Carats
Category

20th Century Japanese Modern Cocktail Rings

Materials

Diamond, Sapphire, Platinum

Menorah Jade Enamel Pendant with Moons 5 Carats TW 18 Karat Gold Sapphires
Located in Laguna Hills, CA
estimated weight of 2.00 carats. (6) cabischon blue Sapphires with an estimated weight of .50 carats (12
Category

20th Century Unknown Egyptian Revival Brooches

Materials

Jade, Diamond, Ruby, Blue Sapphire, Gold, 18k Gold, Yellow Gold, Enamel

GIA Certified 8.40 Carat Natural Unheated Violet Sapphire Ring Set in Platinum
Located in Tokyo, JP
A beautiful ring featuring GIA Certified 8.40 Carat, Natural Unheated Violet Sapphires and 0.98
Category

20th Century Japanese Modern Cocktail Rings

Materials

Diamond, Sapphire, Platinum

0.90 Carat Ruby Diamond Cluster Pendant 18 Karat White Gold Halo Oval Round Cut
By Tresor Paris
Located in London, GB
Ruby Cluster Pendant, with an oval ruby in the centre surrounded by 12 white stunning diamonds
Category

2010s British Modern Pendant Necklaces

Materials

Amethyst, Aquamarine, Chalcedony, Citrine, Diamond, White Diamond, Emera...

0.90 Carat Ruby Diamond Cluster Pendant 18 Karat White Gold Halo Oval Round Cut
By Tresor Paris
Located in London, GB
Ruby Cluster Pendant, with an oval ruby in the centre surrounded by 12 white stunning diamonds
Category

2010s British Modern Pendant Necklaces

Materials

Amethyst, Aquamarine, Chalcedony, Citrine, Diamond, White Diamond, Emera...

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12 Carat Oval Blue Sapphire For Sale on 1stDibs

You are likely to find exactly the 12 carat oval blue sapphire you’re looking for on 1stDibs, as there is a broad range for sale. 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. In our selection of items, you can find a vintage example as well as a contemporary version. You’re likely to find the perfect 12 carat oval blue sapphire among the distinctive items we have available, which includes versions made as long ago as the 20th Century as well as those produced as recently as the 21st Century. For this particular piece, 1.5 Carat and 2 Carat are consistently popular carat weights. Finding an appealing 12 carat oval blue sapphire — no matter the origin — is easy, but Polya Medvedeva Jewellery, Alberto and Antinori Fine Jewels each produced a popular version that is worth a look. Today, if you’re looking for an oval cut version of this piece and are unable to find the perfect match, our selection also includes marquise cut alternatives. If you’re browsing our inventory for a 12 carat oval blue sapphire, you’ll find that many are available today for women, but there are still pieces to choose from for unisex and men.

How Much is a 12 Carat Oval Blue Sapphire?

The price for a 12 carat oval blue sapphire starts at $642 and tops out at $360,000 with these rings, on average, selling for $14,595.

The Legacy of Sapphire in Jewelry Design

On 1stDibs, shop the bright blue gems that star in sapphire rings, sapphire necklaces and other vintage and antique sapphire jewelry

Sapphires — the stone of choice for Napoleon, Princess Diana and Elizabeth Taylor — have been a favorite of aristocrats and the well-to-do since the time of the Ancient Greeks.

Picture a sapphire. If the stone you conjure is a deep cornflower blue, you’re seeing only part of the picture. Although blue Kashmirs are considered the most valuable, sapphires come in every color except red. No matter the hue, this very special gem is rich in history and beloved by royals (FYI, Princess Diana and Kate Middleton share an 11-carat sapphire engagement ring), so September babies are in very noble company.

America’s version of royalty — old money and celebrities — have also shown a predilection for the blue stones. In 1940, John D. Rockefeller Jr. had Cartier mount a 62-carat sapphire he had bought from an Indian maharajah in a brooch for his first wife, Abby Aldrich Rockefeller; in 2001, the piece sold for a then-record of $3,031,000 at Christie’s New York.

The grand dame of jewelry, Elizabeth Taylor had a passion for the gems that her lovers were happy to indulge. Second husband Michael Wilding gave her an engagement ring set with a cabochon sapphire, while Richard Burton famously presented her with a BVLGARI sautoir set with diamonds and sapphires, including at its center a cabochon Burmese weighing 52.72 carats. One of the star lots in the sale of Taylor’s jewels at the Christie’s New York in 2011, it sold for $5,906,500.

You don’t have to have blue blood or a bulging bank account, however, to get an eyeful of this much-coveted gem. A number of outstanding examples reside in public collections.

The Smithsonian Museum of Natural History owns the 423-carat Logan sapphire, a gift from the Guggenheim family, and the Hall sapphire and diamond necklace, designed by Harry Winston and featuring 36 fine, well-matched cushion-cut Sri Lankan sapphires weighing a combined 195 carats. Also in the collection is the Bismarck sapphire necklace, designed by Cartier and sporting a central sapphire weighing 98.6 carats, which Mona Von Bismarck donated to the museum.

Sapphires are composed of corundum. Their color derives from trace elements, such as iron, titanium, chromium, copper or magnesium. When the trace element produces a ruby hue, the stone is called, what else, a ruby. (which is, as mentioned above, why sapphires cannot be red by definition).

The allure of large gemstones endures throughout the periods characterized as vintage, and sapphire features frequently in vintage engagement rings. (On 1stDibs, a range of buying guides can be found for those in the market for antique engagement ringsvintage engagement rings or Art Deco engagement rings.)  

Find an exquisite collection of vintage and antique sapphire jewelry on 1stDibs.