Skip to main content

25 Carat Aquamarine

Rossella Ugolini 18K Yellow Gold 25 carats Aquamarine White Diamonds Necklaces
By Rossella Ugolini
Located in Rome, IT
Rossella Ugolini 18K Yellow Gold 25 carats Aquamarine 0.30 carats White Diamonds Beaded Necklaces
Category

2010s Italian Art Deco Beaded Necklaces

Materials

Aquamarine, Diamond, White Diamond, 18k Gold, Yellow Gold, Gold

25 Carat Aquamarine Ring in Platinum
Located in Houston, TX
25.13 carat step-cut aquamarine ring in a simple basket mounting done in platinum. The ring
Category

Mid-20th Century Unknown Cocktail Rings

Materials

Aquamarine, Platinum

25 Carats Aquamarine Teardrop with Pave Diamonds Paradizia Ring
By Paradizia
Located in Laguna Beach, CA
Description Rare high domed cabochon pear shape cut Aquamarine in an impressive 25 carats framed by
Category

21st Century and Contemporary American Contemporary Cocktail Rings

Materials

Aquamarine, 14k Gold, Rhodium, Sterling Silver

25 Carat Aquamarine, Tourmaline, & Diamond 18K Gold Platinum Retro Bracelet
Located in Miami, FL
Elegant retro inspired 7-inch bracelet featuring 11.20 Carats of aquamarine and 10.60 Carats of
Category

21st Century and Contemporary Modern Link Bracelets

Materials

Aquamarine, Diamond, Tourmaline, Gold, 18k Gold, Yellow Gold, Platinum

Vintage 25 Carat Aquamarine Gemstone Platinum Link Necklace Fine Estate Jewelry
Located in Montreal, QC
Beautiful, Elegant and finely detailed Necklace featuring oval-shaped Aquamarine Gemstones, inter
Category

20th Century Modernist Link Necklaces

Materials

Aquamarine, Platinum

AJD Magnificent 25 Carat Oval Aquamarine in Sterling Bracelet March Birthstone!
By Aria Jewelry Design
Located in Raleigh, NC
Enchanting 25-Carat Aquamarine Cuff Bracelet Discover the exquisite beauty of this magnificent cuff
Category

2010s American Artisan Cuff Bracelets

Materials

Aquamarine, Sterling Silver

25 Carat Natural Aquamarine and Diamond Cocktail Ring 18 Karat Gold, Estate
Located in New York, NY
25 Carat Natural Aquamarine & Diamond Cocktail Ring 18 K Yellow Gold , Estate A classic, Cocktail
Category

Early 2000s Cocktail Rings

Materials

Aquamarine, Diamond, 18k Gold

25 Carat Multi-Color Aquamarine and Diamonds Necklace 18 Karat White Gold
Located in New York, NY
25 Carat Oval natural Aquamarine of different color & 3 Carat Diamonds Necklace 18 K White Gold
Category

20th Century Drop Necklaces

Materials

Diamond, Aquamarine, 18k Gold

Aquamarine Bracelet with drawstring closure
By 15DEGREESLONDON
Located in Boostedt, SH
This bracelet has approximately 25 carat of natural aquamarines in combination with 2 silver beads
Category

2010s German Modern Beaded Bracelets

Materials

Aquamarine, Silver

Aquamarine Bracelet with drawstring closure
Aquamarine Bracelet with drawstring closure
$210 Sale Price / item
20% Off
L 6.3 in
Swiss Modern 8.0ct Aquamarine and Diamond Ring by Killer
Located in Litchfield, CT
blue aquamarine accented by .25 carats of fine white diamonds (H color, SI1 clarity), this eighties
Category

Vintage 1980s Swiss Modernist Fashion Rings

Materials

Aquamarine, Diamond, 18k Gold, White Gold

Aquamarine Red Enamel Diamond 14 Karat Gold Spiral Ring
By Meghna Jewels
Located in Hoffman Estate, IL
This ring has been meticulously crafted from 14-karat rose gold and set with .36 carats Aquamarine
Category

21st Century and Contemporary Modern Band Rings

Materials

Diamond, Aquamarine, Gold, Enamel, 14k Gold

Recent Sales

25 Carat Aquamarine Diamond Ring 18 Karat white Gold and Pendant
Located in Barnsley, GB
This 25 Carat Aquamarine Ring has 106 White Diamonds and is a wow factor as this Large Oval cut
Category

21st Century and Contemporary Contemporary Fashion Rings

Materials

Aquamarine, Diamond, White Gold

25 Carat Aquamarine Diamond Gold Cocktail Ring
Located in Bellevue, WA
This stunning aquamarine cocktail ring features a centered emerald cut 25 carat natural aquamarine
Category

Mid-20th Century Retro Cocktail Rings

Materials

Aquamarine, Diamond, 14k Gold, Yellow Gold

Santa Maria Aquamarine Diamond Ring
Located in Beverly Hills, CA
A ~ 25 carat Aquamarine surrounded by 10 marquise and 6 round diamonds (approximately 1.3 carats of
Category

Vintage 1960s Cocktail Rings

Materials

Aquamarine, White Diamond, Platinum

An Impressive 25, 75 carats Aquamarine Ring
Located in New York, NY
An 18K white gold ring set with an impressive 25,75 carats emerald cut aquamarine. The
Category

21st Century and Contemporary French Cocktail Rings

Materials

Aquamarine, Diamond, 18k Gold

Art Deco Aquamarine Diamond Cocktail Ring in 25 Carat Aqua
Located in Kendal, GB
calming clear blue hue with flashes of green, weighing an impressive 25 carats (approx.) Aquamarine
Category

20th Century Art Deco Engagement Rings

Materials

Aquamarine, Diamond, Platinum

Platinum 60 Carat Aquamarine Pendant Necklace with 1.15 Carat Diamonds, Size 17
Located in Sherman Oaks, CA
stone but nothing major. Dimensions: 1.50 x 1 .25 inches. Features approximately 60 carat aquamarine
Category

Vintage 1910s Unknown Art Nouveau Pendant Necklaces

Materials

Aquamarine, Diamond, Platinum

All Natural 25 Carats Multicolor Gem Stones Gold Flower Necklace
Located in Miami, FL
Metal: 18k White Gold Stones: Sapphire Total Carat Weight: 25 carats Weight: 48.7 grams Length
Category

21st Century and Contemporary Link Necklaces

Materials

Amethyst, Aquamarine, Citrine, Peridot, Sapphire, 18k Gold, White Gold

House of Murat Diamond Large 25 Carat Aquamarine Yellow Gold Ring
By House of Murat
Located in Southampton, PA
18k Yellow Gold Diamond Large 25ct Aquamarine Ring by House Of Murat. With 2 Round brilliant cut
Category

20th Century American Cocktail Rings

Materials

Aquamarine, Diamond, Yellow Gold

25 Carat Blue Aquamarine, Diamond Platinum Ring
Located in New York, NY
A stunning aquamarine and diamond ring crafted in platinum. Mounted with a 25 carat aquamarine of a
Category

21st Century and Contemporary American Modern Cocktail Rings

Materials

Aquamarine, Diamond, Platinum

Natural Carved Emerald and Aquamarine Earrings Set in 18 Karat Gold with Diamond
By JEWEL HUB
Located in Hong Kong, HK
emerald weight is 25 carats , aquamarine weight is 16.17 carats , diamond weight is .81 carats . The net
Category

2010s Indian Modern Drop Earrings

Materials

Aquamarine, Diamond, Emerald, Gold

Vintage Certified 25 Carat Santa Maria Aquamarine Diamond Gold Ring
Located in Napoli, NA
Vintage ring set in the center with a stunning Aquamarine, Santa Maria origin, weighing 24,65
Category

Late 20th Century Cocktail Rings

Materials

Aquamarine, Diamond, Gold, 14k Gold

25 CT Emerald Cut Aquamarine Diamond 18 Karat White Gold Cocktail Ring
Located in Boca Raton, FL
approximately 25 carat emerald cut aquamarine gemstone flanked by 8 round brilliant cut diamonds weighing
Category

21st Century and Contemporary American Modern Cocktail Rings

Materials

Aquamarine, Diamond, 18k Gold, White Gold

Art Deco 18 Carat Aquamarine Diamond Platinum Pendant
Located in Litchfield, CT
grams STONES: 18 carat aquamarine with .25 carats of H color, SI2 clarity diamonds HALLMARKS
Category

Vintage 1930s Unknown Art Deco Drop Necklaces

Materials

Aquamarine, White Diamond, 18k Gold

25 Carat Rainbow Gemstone Unisex Tourmaline Tennis Bracelet
Located in Santa Barbara, CA
boasts fine quality, precision square cut amethyst, aquamarine, tourmaline and citrine. Photography ©
Category

21st Century and Contemporary Contemporary Tennis Bracelets

Materials

Amethyst, Aquamarine, Citrine, Tourmaline, Gold, 18k Gold, Yellow Gold

Aquamarine & Diamond Earrings
Located in Litchfield, CT
carats of vibrant aquamarine, perfectly balanced with .25 carats of brilliant diamonds (H color, SI1
Category

Early 2000s American Stud Earrings

Materials

Aquamarine, Diamond, 14k Gold, White Gold

Magnificent Aquamarine & Diamond Ring
Located in New York, NY
Beautiful Emerald cut Aquamarine Ring - approximately 25-30 carat Aquamarine set in 14Kt White Gold
Category

American Fashion Rings

Materials

Aquamarine, Diamond, White Gold, 14k Gold

Art Deco Aquamarine and Diamond Brooch Pendant
Located in New York, NY
Art Deco aquamarine & diamond brooch/Pendant 25 carat emerald cut aquamarine flanked with two 0.52
Category

Antique 1830s Unknown Art Deco Brooches

Materials

Aquamarine, Diamond, Ruby, Platinum

Aquamarine and Diamond Set Pendant with Chain
Located in Litchfield, CT
aquamarine and .25 carats total weight G color, VS clarity diamonds HALLMARKS: pendant tests 14k and chain
Category

Vintage 1950s American Pendant Necklaces

Materials

Aquamarine, White Diamond, 14k Gold, Yellow Gold

Fabulous Seventies 25 Carat Aquamarine Ring
Located in Litchfield, CT
perfectly showcases the vivid 25.0-carat aquamarine. One-of-a-kind, this custom-made ring is meticulously
Category

Vintage 1970s Cocktail Rings

Materials

Aquamarine, 18k Gold, Yellow Gold

Sensational 25 Carat Aquamarine and Diamond 18 Karat White Gold Cocktail Ring
Located in Tustin, CA
17.17 mm long x 14 mm wide and weighs 17.02 carat. The aquamarine and diamonds are super sparkly in real
Category

21st Century and Contemporary American Artisan Dangle Earrings

Materials

Aquamarine, Diamond, White Diamond, 18k Gold, White Gold

26, 95 carat Aquamarine Hearts, 1, 25 carat Diamonds, 14 Karat White Gold Bracelet
Located in Marcianise, Marcianise (CE)
mounted of 15 section studded with aquamarine hearts and, in their central part, a diamond. Between every
Category

Vintage 1980s Italian Retro Link Bracelets

Materials

Aquamarine, Diamond, 14k Gold, White Gold

11.14 Carat Turquoise Aquamarine Diamond White Gold Cocktail Ring
By Roshe Jewels
Located in Los Angeles, CA
9.89 Carats and has a halo of 25 Aquamarines weighing 0.97 Carats and has 10 Round Cut Diamonds on the
Category

21st Century and Contemporary American Modern Cocktail Rings

Materials

Diamond, Turquoise, Aquamarine, 14k Gold, White Gold

Art Deco 18.90 Carat Aquamarine set Gold Ring
Located in Litchfield, CT
period Art Deco jewels. Set with a lush deep blue 18.90 carat aquamarine and .25 carats of bright white
Category

Vintage 1920s American Art Deco Cocktail Rings

Materials

Aquamarine, White Diamond, 14k Gold, White Gold

Aquamarine and Diamond Set Gold Ring
Located in Litchfield, CT
size: 6 1/2 WEIGHT: 5.7 grams STONES: 6.0 carat Aquamarine and .25 carats total weight
Category

Vintage 1950s American Fashion Rings

Materials

Aquamarine, White Diamond, Diamond, 14k Gold, Yellow Gold, Gold

Berca 25Kt Natural Hand Inlaid Aquamarine And Topaz Diamond Butterfly Brooch
By Berca Atelier
Located in Valenza, IT
Natural hand inlaid aquamarine (25 Carat) and natural light blue topaz(5 Carat), white diamond
Category

21st Century and Contemporary Italian Modern Brooches

Materials

Aquamarine, White Diamond, Topaz, Diamond, 18k Gold

House of Murat Aquamarine and Diamond Cocktail Ring
By House of Murat
Located in New York, NY
gold and centers on a marquise-shaped aquamarine stone weighing an estimated 25 carats. The aquamarine
Category

21st Century and Contemporary Cocktail Rings

Materials

Aquamarine, Diamond, Gold, 18k Gold, Yellow Gold

18K Yellow Gold Platinum Diamond 25 Carat Aquamarine Center Large Cocktail Ring
Located in Boca Raton, FL
18K Yellow Gold Platinum Diamond 25 Carat Aquamarine Center Large Cocktail Ring This one-of-a-kind
Category

21st Century and Contemporary American Contemporary Cocktail Rings

Materials

Aquamarine, Diamond, 18k Gold, Yellow Gold, Platinum

25 Carat Aquamarine Diamond Gold Cocktail Ring
Located in Lambertville, NJ
Large 18k yellow gold cocktail ring, set with an approx. 25ct aquamarine, surrounded with approx
Category

20th Century Unknown More Rings

Materials

Aquamarine, Diamond, 18k Gold

Gold and 25 Carats Aquamarine French Vintage Ring
Located in Saint-Ouen, FR
aquamarine of 25 carats estimate. Dimension of aquamarine: 21*15 mm and 9mm depth Finger size is 6.5 USA of
Category

Vintage 1960s French Solitaire Rings

Materials

Aquamarine, Gold, 18k Gold

Aquamarine Diamond Ring 25 Carat Platinum Ring
Located in Lancaster, Lancashire
This spectacular emerald cut Aquamarine is over 25ct in size. The Aquamarine is a rich ocean blue
Category

Vintage 1920s Unknown Art Deco Engagement Rings

Materials

Aquamarine, Platinum

Vintage Aquamarine Diamond Ring
Located in Beverly Hills, CA
Elegant simplicity. This beautiful 25 carat Emerald Cut Aquamarine is nested in a 14KT white gold
Category

Mid-20th Century American Modern Fashion Rings

Materials

Aquamarine, Diamond, 14k Gold

Aquamarine & Diamond Necklace
Located in Chestnut Hill, MA
Platinum Art Deco style necklace consisting of 1 emerald cut aquamarine weighing 25 carats set with
Category

21st Century and Contemporary Unknown Drop Necklaces

Materials

Diamond, Aquamarine, Platinum

Temple St. Clair Aquamarine Sapphire Diamond Gold Bracelet
By Temple St. Clair
Located in Paris, IDF
aquamarine weighting about 25 carats and on both sides of it, cabochon royal blue moonstones, sapphires and
Category

20th Century American Contemporary Bangles

Materials

Aquamarine, Diamond, Moonstone, Sapphire, 18k Gold

25 Carat Pear Shape Aquamarine and Diamond Pendant
Located in Aliso Viejo, CA
This gorgeous blue Aquamarine is everything you think it would be. The center stone is a 25 carat
Category

Vintage 1970s American Modern Pendant Necklaces

Materials

Aquamarine, Diamond, 14k Gold

Midcentury 1950s Platinum 30 Carat VVS Aquamarine Diamond Cocktail Ring
Located in Shaker Heights, OH
This amazing impressive ring is set in solid platinum, tested, and features a huge central 25 carat
Category

Vintage 1950s American Retro Cocktail Rings

Materials

Aquamarine, White Diamond, Platinum

People Also Browsed

Steven Battelle Cabochon Aquamarine Diamonds Granulated 22K Gold Ring
By Steven Battelle
Located in Soquel, CA
A beautiful brilliant blue 14 x 17 mm cabochon Brazilian Minas Gerias aquamarine is set in a signature Steven Battelle "4 point bezel with jawan" handcrafted 22K Etruscan style gold ...
Category

21st Century and Contemporary American Contemporary Cocktail Rings

Materials

Aquamarine, Diamond, 22k Gold

Steven Battelle 20.7 Carat Green Tourmaline Cabochon Diamonds 22K Gold Ring
By Steven Battelle
Located in Soquel, CA
A beautiful 15 x 20 mm Brazilian green tourmaline cabochon is set in a signature Steven Battelle "4 point with bun and jawan" high karat gold setting with two 1.7 mm VS1 diamonds fl...
Category

21st Century and Contemporary Balinese Contemporary Cocktail Rings

Materials

Tourmaline, Diamond, 22k Gold

Steven Battelle 16.8 Carat Cabochon Pink Tourmaline 18K Gold Ring
By Steven Battelle
Located in Soquel, CA
A high-grade almost flawless deep pink Mozambique pink tourmaline 13 x 18 mm cabochon is held in a spiral carved and fluted 4 prong setting atop a substantial split double spiral mot...
Category

21st Century and Contemporary Balinese Contemporary Cocktail Rings

Materials

Tourmaline, 18k Gold

Steven Battelle 7.6 Carats Rainbow Moonstone 22K Gold Ring
By Steven Battelle
Located in Soquel, CA
A blue flashing 10 x14 rainbow moonstone cabochon is set horizontally like a magical eye in a sightly cupped bezel surrounding by fine "pasir" sandlike granulation in this hand fabri...
Category

21st Century and Contemporary Balinese Contemporary Cocktail Rings

Materials

Moonstone, Rainbow Moonstone, 22k Gold

9-10mm Candy Pastel Multi-Color Round Pearl Necklace with 18K Gold Clasp
Located in Wan Chai District, HK
Introducing our 18-inch 9-10mm Multi-color Pink Peach White Round Pearl Necklace, a beautifully hand-knotted accessory that adds a touch of sophistication and style to both men's and...
Category

21st Century and Contemporary Hong Kong Contemporary Beaded Necklaces

Materials

Pearl, Cultured Pearl, 18k Gold

NO RESERVE! 39.63ct Tanzanite - 14K White Gold - Necklace
By Diamonds Mine
Located in Ramat Gan, IL
This stunning necklace showcases a total of 39.63 carats of violetish blue Tanzanite, prized for its captivating color and rarity. The pendant, set in 14 karat white gold, radiates a...
Category

2010s Art Deco Chain Necklaces

Materials

Tanzanite, 14k Gold, White Gold

Platinum Cushion Cut Aquamarine Diamond Halo Cocktail Ring 11.38 Carats
By Harbor Diamonds
Located in New York, NY
Platinum Cocktail ring featuring one Cushion Cut Aquamarine weighng 10.65 carats flanked with 66 round brilliants weighing 0.73 carats. Color G Clarity SI Aquamarine Length: 16.4 M...
Category

2010s American Contemporary Cocktail Rings

Materials

Aquamarine, Diamond, Platinum

18 Karat Gold 5.26 Carat Emerald-Cut Sapphire and Diamond Eternity Band Ring
By Gems Paradise
Located in Jaipur, IN
18 Karat White Gold 5.26 Carat Emerald-Cut Sapphire and Diamond Eternity Band Ring This spectacular azure blue sapphire and invisible setting diamond band is breathtaking. The solit...
Category

2010s Indian Contemporary Band Rings

Materials

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

Antique 18ct White Gold 1920’s Square Cut Aquamarine & Diamond Ring
Located in Brighton, GB
Antique Square Cut Aquamarine Ring 18ct White Gold Circa 1920’s Fabulous Square Cut Aquamarine Set with a Beautiful Halo of 8 Cut Diamonds Face of The Ring Measures Approx 14....
Category

Early 20th Century English Engagement Rings

Materials

Aquamarine, Diamond, 18k Gold, White Gold

Mint Green Tourmaline Cocktail Ring – Luxury 18K Gold with Tsavorites & Diamonds
By Merkaba
Located in Beverly Hills, CA
7.37 Carat Mint Green Tourmaline 18K Yellow Gold Ring with Tsavorites & Diamonds by Merkaba Jewelry Beverly Hills. Enter a world of unparalleled elegance with the 7.37-carat Mint Gr...
Category

21st Century and Contemporary American Contemporary Cocktail Rings

Materials

Diamond, Tourmaline, Tsavorite, Garnet, 18k Gold, Yellow Gold, Gold, Other

Steven Battelle 22.3 Carats Pink Tourmaline 18K Gold Ring
By Steven Battelle
Located in Soquel, CA
A delicious gumdrop of a 14 x 17 mm salmon pink tourmaline cabochon is held in a Steven Battelle designed fluted and carved embrace. A stunner of a ring! All in matte-finish 18K gol...
Category

21st Century and Contemporary Balinese Contemporary Cocktail Rings

Materials

Tourmaline, 18k Gold

Van Cleef & Arpels 14.83 Round Brilliant Cut Diamond Three-Stone Engagement Ring
By Van Cleef & Arpels
Located in New York, NY
A magnificent engagement ring by Van Cleef & Arpels, featuring a large 14.83 carats round brilliant cut diamond certified by GIA as J color and SI2 clarity, set on a classic six pron...
Category

Vintage 1960s American Contemporary Engagement Rings

Materials

Diamond, Platinum

Belle Époque Diamond Tiara
Located in London, GB
A Belle Époque diamond tiara, to the centre three diamond-set clusters with diamond-set foliate decorations and one large diamond-set cluster on each side, all within a waved frame o...
Category

Early 20th Century French Belle Époque More Jewelry

Materials

Diamond, Platinum

Thierry Mugler Couture FW 1997 Goddess Silk Evening Gown Red Dress
By Thierry Mugler Couture, Thierry Mugler
Located in Berlin, BE
Breathtaking Thierry Mugler Couture Goddess Evening Gown Assuming Fall Winter 1997 Collection The most stunning Thierry Mugler evening gown. Vibrant red made of gorgeous glowing Si...
Category

1990s French Evening Dresses and Gowns

Vintage turquoise beaded silk sheer floral layered wedding slip dress gown M L
Located in Milano, Lombardia
LOVE LALI VINTAGE A breathtaking vintage gown. I would estimate this to be from around the late 90's. It has a pale blue lining which is overlayed with a sheer turquoise layer that ...
Category

1990s Evening Dresses

Rare 5.73 Carat Natural Red Spinel Emerald Cut – Collector's Luxury Gemstone
By Merkaba
Located in Beverly Hills, CA
Design Your Own Jewelry Exceptional 5.73 Carat Natural Red Spinel – A Rare Collector's Gem By Merkaba Beverly Hills. Discover unparalleled luxury with this 5.73 carat natural Red S...
Category

21st Century and Contemporary Tanzanian Art Deco Loose Gemstones

Materials

Spinel

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

25 Carat Aquamarine For Sale on 1stDibs

On 1stDibs, you can find the most appropriate 25 carat aquamarine for your needs in our varied inventory. Every item for sale was constructed with extraordinary care, often using Gold, 18k Gold and White Gold. Find an antique version now, or shop for 42 vintage or 35 modern creation for a more contemporary example of these cherished accessories. Making the right choice when shopping for a 25 carat aquamarine 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. For this particular piece, 2 Carat and 2.5 Carat are consistently popular carat weights. Finding an appealing 25 carat aquamarine — no matter the origin — is easy, but Luigi Ferrara, Five Star Jewelry and Tiffany & Co. each produced a popular version that is worth a look. While most can agree that any 25 carat aquamarine from our collection can easily elevate most outfits, but the choice of a Aquamarine version from the 50 available is guaranteed to add a special touch to your ensemble. See these pages for an oval cut iteration of this accessory, while there are also round cut cut and cushion cut cut versions available here, too. When shopping for a 25 carat aquamarine, 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 Aquamarine?

Prices for a 25 carat aquamarine can differ depending upon size, time period and other attributes — at 1stDibs, these accessories begin at $475 and can go as high as $98,500, while this accessory, on average, fetches $5,156.

The Legacy of Aquamarine in Jewelry Design

Perhaps the one gemstone that best embodies the glimmering blue of the ocean is aquamarine, not just in name but also in color. Aqua marina (Latin for water and sea), March’s birthstone, is often crystal clear and blue. Often affordable in price, vintage and antique aquamarine jewelry belongs in everyone’s jewelry box.

Aquamarine is a precious gemstone from the mineral beryl family. Its cousin is the emerald. Like other beryl varieties, aquamarines are rated 7.5 to 8 on the Mohs Hardness Scale. This means that they are soft enough for jewelers to cut to their client’s specs but also durable enough for daily wear.

On land or sea, aquamarines feature prominently in many folk tales, including one about mermaids gifting aquamarine to sailors to protect them during sea voyages. Worn around sailors’ necks as an amulet, it kept them from getting seasick and, most importantly, from shipwrecks. Considered a symbol of courage by some, aquamarine amulets were also favored by Egyptian and Hebrew warriors during battle.

Aquamarine has also made appearances on some of the grandest of great dames. The Brazilian government gifted Eleanor Roosevelt with a 1,847-carat aquamarine in 1935 and Queen Elizabeth II received a sizable aquamarine upon her 1953 coronation; this stone is now the focal point of her aquamarine tiara. And renowned Tiffany & Co. designer Jean Schlumberger made a diamond Bow setting for a 148.5-carat aquamarine, which was originally exhibited at the 1893 World’s Columbian Exhibition, now in the collection of the Field Museum of Natural History in Chicago.

On 1stDibs, find a range of vintage and antique aquamarine jewelry that includes unique aquamarine rings, necklaces and other accessories.

Questions About 25 Carat Aquamarine
  • 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.