Skip to main content

25 Carat Sapphire

to
11
100
60
34
34
29
132
94
40
15
15
4
61
75
3
11
3
3
2
1
4
2
4
88
50
1
30
26
12
9
5
to
7
4
3
3
3
30
24
17
6
4
3
2
2
1
138
1
127
6
Sort By
.25 Carat Sapphire Yellow Gold Pin
Located in Hicksville, NY
Diamond Details Type: Natural Sapphire Shape: Cabochon Carat Weight: .25 carat Color: Blue Side Stone
Category

Vintage 1920s Unknown Art Deco Brooches

Materials

White Diamond, Sapphire, Blue Sapphire, 14k Gold, Yellow Gold

Rare Art Deco 25 Carat Sapphire and 5 Carat Diamond Platinum Bracelet
Located in Chicago, IL
Rare Art Deco 25 Carat Sapphire and 5 Carat Diamond Platinum Bracelet Description: This
Category

Vintage 1940s American Art Deco Tennis Bracelets

Materials

Diamond, White Diamond, Sapphire, Platinum

Mid Century 25 Carat Sapphire & Diamond Checkerboard Bracelet
Located in Santa Barbara, CA
impressive 25 carats of gems, the lively, deeply-saturated medium blue of the sapphires are perfectly matched
Category

Vintage 1970s Retro Retro Bracelets

Materials

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

Mother of Pearl Sapphire Diamond 18 Karat Gold Stud Earrings
By Meghna Jewels
Located in Hoffman Estate, IL
carats Mother of Pearl and .25 carats sapphire. FOLLOW MEGHNA JEWELS storefront to view the latest
Category

21st Century and Contemporary Modern Stud Earrings

Materials

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

Carved Jade Diamond Brooch
By Meghna Jewels
Located in Hoffman Estate, IL
jade, .25 carats sapphire and 1.2 carats of sparkling diamonds. FOLLOW MEGHNA JEWELS storefront to
Category

21st Century and Contemporary Artisan Brooches

Materials

Diamond, Jade, 18k Gold, Sterling Silver

25 Carat Star Sapphire Diamond Platinum Ring
Located in New York, NY
Platinum cocktail ring, with approx. 25-30ct star sapphire cabochon, surrounded with approx
Category

20th Century More Rings

Materials

Diamond, Star Sapphire, Platinum

25 Carats Emerald Sapphires Yellow Gold Ring, 1950
Located in Herzelia, Tel Aviv
25 Carats Emerald Sapphires Yellow Gold Ring, 1950 25Ct of fine Emerald surrounded by Sapphires in
Category

Mid-20th Century Solitaire Rings

Materials

Emerald, Sapphire, Yellow Gold

25 ct Oval Star Sapphire
Located in Toronto, Ontario
Description: Item Description: One Loose Stone Weight: 25 cts Measurements: 18.68x14.54x8.44 mm
Category

2010s Unknown Loose Gemstones

Materials

Star Sapphire, Sapphire, Blue Sapphire

25 ct Oval Star Sapphire
25 ct Oval Star Sapphire
$2,000
W 0.74 in D 0.34 in L 0.58 in
.25 Carat Pink Sapphire Diamond Etruscan Yellow Gold Ring
Located in Stamford, CT
Sapphire and diamond open work ring. Pink Oval sapphire in an open work 18k yellow gold Etruscan
Category

Late 20th Century Fashion Rings

Materials

Diamond, Sapphire, Pink Sapphire, Gold, 18k Gold, Yellow Gold

25 Carat Star Sapphire Cabochon Platinum Diamond Ring
Located in New York, NY
Platinum cocktail ring, featuring center 25-30cts star sapphire cabochon , measuring 20.6 x 14.7 x
Category

20th Century More Rings

Materials

Diamond, Star Sapphire, Platinum

.25 Carat Diamond Sapphire White Gold Dome Engagement Ring
Located in Stamford, CT
Vintage 1930's diamond and sapphire filigree engagement ring. Dome style with a old euro center
Category

Early 20th Century Engagement Rings

Materials

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

GIA Certified .25 Carat Yogo Gulch Montana Sapphire Yellow Gold Brooch
Located in Stamford, CT
Vintage 1930's sapphire brooch. 4 round Yogo Gulch Montana blue sapphires set in 14k yellow gold
Category

Mid-20th Century Brooches

Materials

Sapphire, Gold, 14k Gold, Yellow Gold

Art Deco Platinum 8 Carat Sapphire 25 Carat Diamond Bracelet
Located in New York, NY
: Excellent Gemstone: Sapphire, Diamond Sapphire Weight: 8 CT Diamond Weight: 25 CT Total Item Weight: 63
Category

20th Century Art Deco More Bracelets

25 Carat Pink Sapphire & Diamond 18K Rose Gold Multi-Row Cuff Bangle Bracelet
Located in Miami, FL
22 Carat Square Cut Pink Sapphire With 3.03 Carat Round Cut Diamonds in 18K Rose Gold Multi-Row
Category

21st Century and Contemporary Modern Cuff Bracelets

Materials

Diamond, Sapphire, Pink Sapphire, Gold, 18k Gold, Rose Gold

25 Carat Pink Sapphire & Diamond 18K Rose Gold Multi-Row Cuff Bangle Bracelet
Located in Miami, FL
22 Carat Square Cut Pink Sapphire With 3.03 Carat Round Cut Diamonds in 18K Rose Gold Multi-Row
Category

21st Century and Contemporary Modern Cuff Bracelets

Materials

Diamond, Sapphire, Pink Sapphire, Gold, 18k Gold, Rose Gold

GIA Certified 25 Carat Blue Sapphire & Round Diamond Halo Ring in Platinum
Located in Miami, FL
Vintage Art Deco inspired Blue Sapphire and Diamond cocktail ring. Blue Sapphire is or Sri Lanka
Category

1990s Sri Lankan Art Deco Cocktail Rings

Materials

Diamond, Blue Sapphire, Platinum

Victorian 25 Cttw. Natural Sapphire, Blue Topaz/Diamond Earrings in 18k/SS
Located in New York, NY
of 15.24 GM includes approximately 2.18 carats of diamonds, 2.89 carats of blue sapphires, 14.07
Category

2010s Victorian Dangle Earrings

Materials

Diamond, Sapphire, Blue Topaz, 18k Gold, Rhodium, Sterling Silver

GIA Certified, No Heat, 60 Ct Pink Sapphire & 25 Ct Diamond Necklace Suite 18 Kt
Located in New York, NY
GIA Certified, No Heat, Medagaskar natural 60 Ct Pink Sapphire & 25 Ct Diamond Necklace Suite 18
Category

20th Century Drop Necklaces

Materials

Diamond, Pink Sapphire, 18k Gold

.25 Carat Total Weight Diamond Platinum and White Gold Engagement Ring
Located in Hicksville, NY
Details Shape: Old European Brilliant Carat Weight: .25 carat, total weight Color: F Clarity: VS Side
Category

Vintage 1930s Unknown Art Deco Engagement Rings

Materials

Sapphire, Blue Sapphire, White Gold, Platinum

Blue Oval Cut Sapphire Tennis Bracelet 5 Carats
Located in Punta Gorda, FL
It comes with the appraisal by GIA GG/AJP All Gemstones are Natural 25 Blue Sapphires = 5.00 Carats
Category

21st Century and Contemporary Contemporary Tennis Bracelets

Materials

Sapphire, Silver, Sterling Silver

Blue Oval Cut Sapphire Tennis Bracelet 5 Carats
Located in Punta Gorda, FL
It comes with the appraisal by GIA GG/AJP All Gemstones are Natural 25 Blue Sapphires = 5.00 Carats
Category

21st Century and Contemporary Contemporary Tennis Bracelets

Materials

Sapphire, Silver, Sterling Silver

Blue Oval Cut Sapphire Tennis Bracelet 5 Carats
Located in Punta Gorda, FL
It comes with the appraisal by GIA GG/AJP All Gemstones are Natural 25 Blue Sapphires = 5.00 Carats
Category

21st Century and Contemporary Contemporary Tennis Bracelets

Materials

Sapphire, Silver, Sterling Silver

Blue Oval Cut Sapphire Tennis Bracelet 5 Carats
Located in Punta Gorda, FL
It comes with the appraisal by GIA GG/AJP All Gemstones are Natural 25 Blue Sapphires = 5.00 Carats
Category

21st Century and Contemporary Contemporary Tennis Bracelets

Materials

Sapphire, Silver, Sterling Silver

Blue Oval Cut Sapphire Tennis Bracelet 5 Carats
Located in Punta Gorda, FL
It comes with the appraisal by GIA GG/AJP All Gemstones are Natural 25 Blue Sapphires = 5.00 Carats
Category

21st Century and Contemporary Contemporary Tennis Bracelets

Materials

Sapphire, Silver, Sterling Silver

Blue Oval Cut Sapphire Tennis Bracelet 5 Carats
Located in Punta Gorda, FL
It comes with the appraisal by GIA GG/AJP All Gemstones are Natural 25 Blue Sapphires = 5.00 Carats
Category

21st Century and Contemporary Contemporary Tennis Bracelets

Materials

Sapphire, Silver, Sterling Silver

.25 Carat Total Weight Art Deco Diamond Platinum Engagement Ring
Located in Hicksville, NY
: Sapphire, Created Weight: .45carat, total Color: Blue Finger to Top of Stone Measurement: 4mm Condition
Category

Vintage 1930s Unknown Art Deco Engagement Rings

Materials

Diamond, Blue Sapphire, Platinum

Blue Oval Cut Sapphire Tennis Bracelet 5 Carats
Located in Punta Gorda, FL
It comes with the appraisal by GIA GG/AJP All Gemstones are Natural 25 Blue Sapphires = 5.00 Carats
Category

21st Century and Contemporary Contemporary Tennis Bracelets

Materials

Sapphire, Silver, Sterling Silver

Blue Oval Cut Sapphire Tennis Bracelet 5 Carats
Blue Oval Cut Sapphire Tennis Bracelet 5 Carats
$1,299 Sale Price
35% Off
L 7.5 in
Blue Oval Cut Sapphire Tennis Bracelet 5 Carats
Located in Punta Gorda, FL
It comes with the appraisal by GIA GG/AJP All Gemstones are Natural 25 Blue Sapphires = 5.00 Carats
Category

21st Century and Contemporary Contemporary Tennis Bracelets

Materials

Sapphire, Silver, Sterling Silver

Blue Oval Cut Sapphire Tennis Bracelet 5 Carats
Located in Punta Gorda, FL
It comes with the appraisal by GIA GG/AJP All Gemstones are Natural 25 Blue Sapphires = 5.00 Carats
Category

21st Century and Contemporary Contemporary Tennis Bracelets

Materials

Sapphire, Silver, Sterling Silver

Blue Oval Cut Sapphire Tennis Bracelet 5 Carats
Located in Punta Gorda, FL
It comes with the appraisal by GIA GG/AJP All Gemstones are Natural 25 Blue Sapphires = 5.00 Carats
Category

21st Century and Contemporary Contemporary Tennis Bracelets

Materials

Sapphire, Silver, Sterling Silver

Blue Oval Cut Sapphire Tennis Bracelet 5 Carats
Located in Punta Gorda, FL
It comes with the appraisal by GIA GG/AJP All Gemstones are Natural 25 Blue Sapphires = 5.00 Carats
Category

21st Century and Contemporary Contemporary Tennis Bracelets

Materials

Sapphire, Silver, Sterling Silver

Blue Oval Cut Sapphire Tennis Bracelet 5 Carats
Blue Oval Cut Sapphire Tennis Bracelet 5 Carats
$1,299 Sale Price
35% Off
L 7.5 in
Blue Oval Cut Sapphire Tennis Bracelet 5 Carats
Located in Punta Gorda, FL
It comes with the appraisal by GIA GG/AJP All Gemstones are Natural 25 Blue Sapphires = 5.00 Carats
Category

21st Century and Contemporary Contemporary Tennis Bracelets

Materials

Sapphire, Silver, Sterling Silver

25 Carat Multi-Color Aquamarine and Diamonds Necklace 18 Karat White Gold
Located in New York, NY
approximately 25 Carat with pink Sapphire and diamonds. There are total of approximately 3 carats of
Category

20th Century Drop Necklaces

Materials

Diamond, Aquamarine, 18k Gold

21.7 Carat Multi Sapphire Diamond 14 Karat Gold Raindrop Earrings
By Meghna Jewels
Located in Hoffman Estate, IL
with 21.7 carat multi sapphires and .25 carats of sparkling diamonds. FOLLOW MEGHNA JEWELS storefront
Category

21st Century and Contemporary Unknown Modern Drop Earrings

Materials

Diamond, Blue Sapphire, Pink Sapphire, Yellow Sapphire, Green Sapphire, ...

3.68 Carats Ethiopian Opal Pink Sapphire Diamond 14 Karat Gold Ring
By Meghna Jewels
Located in Hoffman Estate, IL
Ethiopian opal, .55 carats pink sapphire & .25 carats of sparkling diamonds. The ring is a size 7 and may
Category

21st Century and Contemporary Unknown Modern Cocktail Rings

Materials

Diamond, Opal, Pink Sapphire, Gold, 14k Gold

18 Karat Gold 28.00 Carat Oval Blue Topaz Ring with Sapphires and Aquamarine
Located in New York, NY
surrounded by 2.40 carats of black sapphires and .25 carats of aqua. This detailed piece is overlayed with a
Category

2010s Italian Modern Cocktail Rings

Materials

Aquamarine, Sapphire, Topaz, 18k Gold, White Gold

1981 Classic Collection Wedding Band Ring: 2.75 Carat Sapphire in 14K White Gold
Located in Paramus, NJ
carat weight of 2.75 carats, showcasing 25 stunning round sapphires that radiate deep blue hues and
Category

21st Century and Contemporary Hong Kong Modern Band Rings

Materials

Sapphire, 14k Gold, White Gold

Sapphire & Diamond Wave Band 14K Yellow Gold Milgrain Stackable Ring
By Five Star Jewelry
Located in Austin, TX
Gold Sapphire Count: 5 Sapphire Weight: .25 carats total weight Diamond Count: 6 Diamond Weight: .25
Category

21st Century and Contemporary American Contemporary Band Rings

Materials

Diamond, Sapphire, 14k Gold, Yellow Gold

Retro Blue and Yellow Sapphire Diamond Gold Brooch
Located in New York City, NY
approx. 25 carats of colored sapphires with two round cut diamonds at the base of the brooch. True period
Category

Vintage 1940s Brooches

Materials

Diamond, Blue Sapphire, Yellow Sapphire, Gold, 14k Gold

Art Deco Cabochon Sapphire and Diamond Ring
Located in New York, NY
This wonderful and charming Art Deco ring features a pleasant .25 carat cabochon sapphire set in an
Category

Early 20th Century Art Deco Cocktail Rings

Materials

Diamond, Sapphire, Platinum

Cabochon Quartz Ring With Sapphire and Diamond Halo
Located in Phoenix, AZ
with 6.45 carats of stunning orange sapphires and .25 carats of diamonds in 14k white gold.
Category

21st Century and Contemporary Cocktail Rings

Materials

Diamond, Quartz, Sapphire, White Gold

Sapphire Diamond by the Yard White Gold Necklace
Located in Miami Beach, FL
This beautiful necklace features 25 carats of fancy cut sapphires accented by 1 bezel set diamond
Category

21st Century and Contemporary Chain Necklaces

Materials

Sapphire, Diamond, 18k Gold, White Gold

Blue Sapphire 14 Karat Yellow Gold Filgree Bangle Bracelet
Located in Mount Kisco, NY
.05 carat sapphire gemstones, .25 TW. Circa mid-century, this lovely piece is crafted with a hinge for
Category

Mid-20th Century American Bangles

Materials

Blue Sapphire, 14k Gold, Yellow Gold

Vourakis Sapphire and Diamond Earrings, Brooch, and Ring Suite 18k
By Vourakis
Located in New York, NY
prominent sapphires weighing approximately 3.03, 2.81, 2.87 and 5.02 carats, the diamonds totaling 20-25
Category

20th Century Pendant Necklaces

Materials

Diamond, Sapphire, 18k Gold

Vintage Double Tulip Ring w Rubies Sapphires & Diamonds Round Clusters in Gold
Located in Austin, TX
cut gorgeous diamond. The rubies have a total weight of .20 carats, the sapphires .25 carats and the
Category

Vintage 1970s North American Victorian Cluster Rings

Materials

Diamond, Ruby, Sapphire, Gold, 14k Gold, Yellow Gold

18k Yellow Gold Ruby, Sapphire, Diamond and Pearl Necklace
Located in Beverly Hills, CA
five cabochon-cut rubies totaling 45 carats and four cabochon-cut blue sapphires totaling 25 carats
Category

Vintage 1970s Multi-Strand Necklaces

Materials

Diamond, Ruby, Sapphire, Gold, 18k Gold, Yellow Gold

18K White Gold Diamond & Sapphire Tennis Bracelet Tw. 5.54ct
Located in New York, NY
2.16 carats & 25 Natural Blue Sapphires weighting 3.38 carats Total weight 5.54 carats, wrist size 6.5
Category

2010s American Modern Tennis Bracelets

Materials

Diamond, Sapphire, 18k Gold, White Gold

Bochic “Capri” Vintage Ruby, Emerald & Sapphire Necklace Set in 18K & Silver
By Bochic
Located in New York, NY
Italian style Natural Red Ruby - 25 Carats Natural Blue Sapphires - 12 Carats Natural Green Emeralds
Category

Late 20th Century Thai Baroque Drop Necklaces

Materials

Emerald, Ruby, Sapphire, 18k Gold, Silver

18K Starflower Necklace With Blue Star Sapphire and Adjustable Chain
By Jennifer Rutheny
Located in New York, NY
The 4mm, .25 Carat Star Sapphire Cabochon using an Age Old Technique of Carefully "Folding" The Gold
Category

21st Century and Contemporary American Artisan Pendant Necklaces

Materials

Star Sapphire, 18k Gold

Ethiopian Opal Pink Sapphire Diamond 14 Karat Gold Ring
By Meghna Jewels
Located in Hoffman Estate, IL
Ethiopian opal, 1.36 carats sapphire & .25 carats of sparkling diamonds. The ring is a size 7 and may be
Category

21st Century and Contemporary Unknown Modern Cocktail Rings

Materials

Diamond, Opal, Pink Sapphire, Gold, 14k Gold

Sapphire Diamond Three Stone Engagement Ring, 14KT White Gold, Ring
Located in McLeansville, NC
three round cut natural blue sapphires weighing approximately 1 total carat, each with a halo of round
Category

Early 2000s Engagement Rings

Materials

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

Blue Sapphire Red Ruby Diamond Double Heart Vintage Style Crown Gold Ring
By Unbranded
Located in Oakton, VA
.25 carats and ruby weighing .20 carats, both set to the center of round cut diamond halo, with a
Category

21st Century and Contemporary Edwardian Engagement Rings

Materials

Diamond, Ruby, Sapphire, 14k Gold, White Gold, Yellow Gold

Gems Are Forever GIA Cert 2.71 Ct Unheated Sapphire Diamond Double Halo Ring
By Gems Are Forever
Located in beverly hills, CA
with micro pavé diamonds. Diamond mounting 1.00 carat weight total, Sapphire mounting .25 carat weight
Category

2010s American Art Deco Cocktail Rings

Materials

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

Bochic “Orient” Multi Sapphires & Multi Gem Brooch Set In 18K Gold & Silver
By Bochic
Located in New York, NY
Aquamarine, Oval shape - 25 carat Natural Sapphires from Sri Lanka 51 carat Natural Amethyst - 14 Carat
Category

21st Century and Contemporary Thai Baroque Brooches

Materials

Ruby, Sapphire, Amethyst, Aquamarine, Cultured Pearl, 18k Gold, Gold Pla...

Five Diamond and Gem-set Oscar Heyman Bangle Bracelets
By Oscar Heyman
Located in New York, NY
-cut blue sapphires (approximate total weight 3.75 carats); 25 brilliant-cut orange sapphires
Category

Mid-20th Century American Bangles

Materials

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

Cheerfully Zurich Chic, 18k Ring
Located in Litchfield, CT
, it can be sized. WEIGHT: 5.8 grams STONES: .25 carat ruby, .25 carats total weight of
Category

Vintage 1960s Swiss Fashion Rings

Materials

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

Evil Eye Diamond 14 Karat Gold Charm Lock Pendant Necklace
By Meghna Jewels
Located in Hoffman Estate, IL
The 14 karat gold pendant is hand set with .25 carats blue sapphire and .24 carats of sparkling
Category

21st Century and Contemporary Modern Pendant Necklaces

Materials

Diamond, Blue Sapphire, Gold, 14k Gold

Antique 1.31Ct Emerald and Diamond Yellow Gold Cocktail Ring, Circa 1880
Located in Genève, GE
Yellow and grey gold 18 carat 25 yellow sapphire 3.5 diameter, around 5 carat George Lambert is an
Category

21st Century and Contemporary Swiss Artisan Fashion Rings

Materials

Sapphire, Gold, 18k Gold, Yellow Gold

  • 1
Get Updated with New Arrivals
Save "25 Carat Sapphire", and we’ll notify you when there are new listings in this category.

25 Carat Sapphire For Sale on 1stDibs

You are likely to find exactly the 25 carat sapphire you’re looking for on 1stDibs, as there is a broad range for sale. Every item for sale was constructed with extraordinary care, often using Gold, White Gold and 18k Gold. You can easily find a 154 antique edition and 151 modern creations to choose from as well. Making the right choice when shopping for a 25 carat sapphire may mean carefully reviewing examples of this item dating from different eras — you can find an early iteration of this piece from the 19th Century and a newer version made as recently as the 21st Century, both of which have proven very popular over the years. 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 25 carat sapphire — no matter the origin — is easy, but LB Exclusive, Peter Suchy and TJD each produced a popular version that is worth a look. Today, if you’re looking for a round cut version of this piece and are unable to find the perfect match, our selection also includes oval cut and cabochon alternatives. When shopping for a 25 carat sapphire, you’ll find that there are less available pieces for unisex or men today than there are for women.

How Much is a 25 Carat Sapphire?

On average, a 25 carat sapphire at 1stDibs sells for $3,995, while they’re typically $353 on the low end and $198,000 for the highest priced versions of this item.

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.

Questions About 25 Carat Sapphire
  • 1stDibs ExpertSeptember 28, 2021
    The minimum value of a 25-carat diamond ranges from $300 to $1,400. The prices change subject to the fluctuation of market factors. The value is defined based on the 4Cs — color, clarity, cut and carat weight. Shop antique, vintage and new diamond jewelry on 1stDibs.
  • 1stDibs ExpertApril 5, 2022
    The highest carat sapphire to ever be discovered is the Blue Giant of the Orient, as of January 2022. It weighs 486.52 carats and originated from a mine in Ratnapura, Sri Lanka. On 1stDibs, shop a large selection of sapphire gemstone jewelry.
  • 1stDibs ExpertFebruary 22, 2021
    A standard size of a round sapphire is 6mm which is approximately one carat, making 7mm sapphires just slightly larger than a carat. Because sapphires are heavier than diamonds, a one carat sapphire is slightly smaller than a one carat diamond.
  • 1stDibs ExpertMay 5, 2023
    How much a 1-carat natural sapphire is worth depends on its color, cut and quality. Sapphires can range in value from $25 to thousands of dollars per carat. A certified appraiser or knowledgeable jewelry expert can examine a particular gemstone piece and give you an estimate of its value. On 1stDibs, find a collection of sapphire gemstone jewelry.