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18 Carat Signet

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Edwardian 18 Carat Gold Signet Ring
Located in Chipping Campden, GB
This ring is modelled in glossy 18 carat gold and has the faintest engraving on the front. The
Category

Antique Early 1900s British Edwardian Signet Rings

Materials

Gold

Vintage 18 Carat Gold Signet Ring
Located in Chipping Campden, GB
This sweet signet is modelled in 18ct gold and has a smooth face with detailed shoulders.On the
Category

Vintage 1950s British Signet Rings

Materials

Gold

0.35 Carats Diamond 18 Carat Yellow Gold Lion Signet Ring
Located in Paris, FR
(US 7 3/4) Ring weight : 9.10 g French work first Half of the XXth century Yellow gold 18 carats
Category

Early 20th Century French Romantic Signet Rings

Materials

Diamond, 18k Gold, Yellow Gold

Certified 2.35 Carat Diamond 18 Carat Yellow Gold Signet Ring
By Les Pierres de Julie
Located in Paris, FR
5.72 mm (0.533 x 0.794 x 0.225 inch) Finger size: 54 (US: 6 3/4) Ring weight : 10.90 g 18 carat
Category

2010s French Modern Signet Rings

Materials

Diamond, 18k Gold, Yellow Gold

Edwardian 18 Carat Gold Dragon Engraved Signet Ring
Located in St Helens, GB
A superb antique signet ring, circa 1909. Solid 18 carat yellow gold example. The oval signet head
Category

20th Century Signet Rings

Materials

Gold

Art Deco Sardonyx 18 Carat Gold Signet Ring
Located in Chipping Campden, GB
A superb signet ring, set with a brilliant shield cut sardonyx and modelled in 18carat yellow gold
Category

Vintage 1920s Unknown Signet Rings

Materials

15k Gold, Gold

Vintage Diamond and 18 Carat Gold Signet Ring
Located in Chipping Campden, GB
This gorgeous chunky signet ring holds an old mine cut diamond which measures 65pts and is set
Category

Vintage 1950s British Modern Signet Rings

Materials

Diamond, Gold

Antique Malachite and 18 Carat Gold Signet Ring
Located in Chipping Campden, GB
The malachite stone in this 18ct gold ring is bright and has beautiful banding running through it. The green is complimented perfectly by the glossy yellow gold. Ring Size: S or 9 ...
Category

Vintage 1920s British Art Deco Signet Rings

Materials

Malachite, Gold

George VI 18 Carat Yellow Gold Signet Ring, 1940
Located in Glasgow, GB
marks, the date letter 'Q' to denote 1940, and stamped '18' for 18 carat gold. Period: - Mid 20th
Category

Vintage 1940s British Modern Signet Rings

Materials

Yellow Gold, Gold, 18k Gold

Impressive 18 Carat Gold and Enamel Skull Signet Ring
Located in St Helens, GB
A stunning example of a Georgian style Momento Mori mourning ring. Solid 18 carat yellow gold and
Category

20th Century Signet Rings

Materials

Gold, Enamel

Vintage Piaget 18 Carat White and Yellow Gold Polo Signet Ring
By Piaget
Located in London, GB
1980's 18 carat gold Piaget signet ring designed from their signature Polo collection. The ring is
Category

Antique 1880s English Modern Signet Rings

Materials

18k Gold, White Gold, Yellow Gold

French 1935s 7.50 Carat Tourmaline 18 Karat Yellow Gold Signet Ring
Located in Poitiers, FR
Ring in 18 karat yellow gold, eagle's head hallmark. Splendid antique signet ring, it features a
Category

Vintage 1930s French Retro Signet Rings

Materials

Tourmaline, Gold, 18k Gold, Yellow Gold

1970s 8.80 Carat Chysoprase 18 Karat Brushed Yellow Gold Signet Ring
Located in Poitiers, FR
Ring in 18 karat yellow gold, owl hallmark. Important retro signet ring, it presents a geometrical
Category

Vintage 1970s French Retro Signet Rings

Materials

Chrysophrase, Gold, 18k Gold, Yellow Gold

Antique 18 Carat Gold and Crested Shield Intaglio Signet Seal Ring
Located in St Helens, GB
A superb antique signet ring, circa 1900. Solid 15 carat yellow gold example. Set with shield
Category

Antique 19th Century Signet Rings

Materials

Gold

H. Stern 12.40 Carat Oval Cabochon Cut Star Sapphire Ring, 18 Karat Gold Signet
By H. Stern
Located in Greensboro, NC
Color: Light Purplish Blue Cut: Oval Cabochon Carat: 12.40ct Style: Signet Solitaire Face Height
Category

21st Century and Contemporary Unknown Signet Rings

Materials

Star Sapphire, 18k Gold, Yellow Gold

0.50 Carat Round Diamond 18 Karat White Gold Claw Set Signet Ring
By Tresor Paris
Located in London, GB
0.50 Carat Round White Diamonds Men's Signet Style Claw set ring set in 18 Karat White Gold. This
Category

2010s British Modern Signet Rings

Materials

Diamond, White Diamond, Gold, 18k Gold, Rose Gold, White Gold, Yellow Gold

0.99 Carat Natural Padparadscha Sapphire Signet Ring Set in 18 Karat Gold
Located in Tokyo, JP
A beautiful ring featuring 0.99 Carat Natural Padparadscha Sapphire set in 18 Karat Yellow Gold
Category

21st Century and Contemporary Japanese Modern Signet Rings

Materials

Sapphire, Padparadscha Sapphire , Gold, 18k Gold

Stephen Webster England Made Me 18 Carat Rose Gold and White Diamond Signet Ring
By Stephen Webster
Located in London, GB
Long been an innovator with men's jewellery, Stephen Webster continues this with the England Made Me collection. Not for the feint of heart, this 18ct rose Gold and white Diamond pav...
Category

2010s British Contemporary Signet Rings

Materials

Diamond, White Diamond, Gold, 18k Gold, Rose Gold

0.52 Carat Natural Diamond Signet Ring Set in 18 Karat Yellow Gold
Located in Tokyo, JP
A beautiful ring featuring 0.52 Carats Melee Diamonds in 18 Karat Yellow Gold. Diamonds have been
Category

21st Century and Contemporary Japanese Modern Signet Rings

Materials

Diamond, 18k Gold, Yellow Gold

Vintage circa 1970s Diamond 18 Carat Yellow & White Gold Patterned Signet Ring
Located in Hamilton, AU
Forged in 18 carat gold, this classic ring features a patterned yellow gold band rising to a white
Category

20th Century Unknown Modern Signet Rings

Materials

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

0.75 Carat Round White Diamond 18 Karat Yellow Gold Bespoke Men's Signet Ring
Located in London, GB
Meticulously crafted men's signet style ring in 18 Karat Yellow Gold featuring 16 round brilliant
Category

2010s British Modern Signet Rings

Materials

White Diamond, Diamond, Gold, Yellow Gold, White Gold, Rose Gold, 18k Gold

Stephen Webster Vertigo Losing Perspective 18 Carat Gold and Spinel Signet Ring
By Stephen Webster
Located in London, GB
All is not as it first seems with the Vertigo Losing Perspective Large Ring. Designed to create an illusion of depth and dimension. The ring features an emerald-cut black Spinel and ...
Category

2010s British Contemporary Signet Rings

Materials

Spinel, Gold, 18k Gold, Yellow Gold

1.00 Carat Round White Diamond 18 KT Yellow Gold Men's Bespoke Signet Ring
By Hasbani Diamonds
Located in London, GB
1.00 Carat Round White Diamonds Men's Signet Style ring set in 18 Karat Yellow Gold. It has 16
Category

2010s British Modern Signet Rings

Materials

Diamond, White Diamond, Gold, 18k Gold, Rose Gold, White Gold, Yellow Gold

18 Karat Brushed Yellow Gold Signet Ring with 12.06 Carat Cabochon Cut Moonstone
Located in Paris, FR
Designed by Eva Soussana, artist and founder of Hera-Jewellery, these elegant and refined signet
Category

20th Century French Contemporary Signet Rings

Materials

Moonstone, 18k Gold, Yellow Gold

0.25 Carat Round White Diamond 18 Kt White Gold Men's Signet Gentleman Ring
By Tresor Paris
Located in London, GB
Express your individuality with this 0.25 Carat Round Brilliant White Diamond Men's Signet Style
Category

2010s British Modern Signet Rings

Materials

White Diamond, Diamond, Gold, Yellow Gold, White Gold, Rose Gold, 18k Gold

George V 18 Carat Gold Portrait Locket Signet Ring, King's Royal Rifle Corps
By Deakin & Francis
Located in Glasgow, GB
A George V 18 carat yellow gold portrait locket signet ring. The ring has an oval panel to the
Category

Vintage 1910s British George V Signet Rings

Materials

Gold, 18k Gold, Yellow Gold

Modern 2.95 Carat Ruby Diamond Signet Ring
Located in Poitiers, FR
Ring in 18 karats yellow gold. Superb signet ring, it is set on its tray with calibrated ruby lines
Category

21st Century and Contemporary French Modern Signet Rings

Materials

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

Diamond 18 Karat Gold Bespoke 0.50 Carat Round Men's UK Hallmarked Signet Ring
By Tresor Paris
Located in London, GB
0.50 Carat Round Brilliant White Diamond Men's Signet Style ring is set in 18 Karat Yellow Gold
Category

2010s British Modern Signet Rings

Materials

Diamond, White Diamond, Gold, 18k Gold, Rose Gold, White Gold, Yellow Gold

18 Karat Yellow Gold Signet Ring with 5.69 Carat Tourmaline, On Made To Order
By Eva Soussana
Located in Paris, FR
carat tear drop cut green Tourmaline of Brazilian origin set on 18 karat brushed yellow gold, weighing
Category

21st Century and Contemporary French Contemporary Signet Rings

Materials

18k Gold

Bespoke 0.70 Carat Tresor Paris Princes Cut White Diamond 18 Kt Gold Signet Ring
By Tresor Paris
Located in London, GB
A bespoke 0.70 Carat Princess Cut White Diamond Men's Signet Style ring is set in 18 Karat Yellow
Category

2010s British Modern Signet Rings

Materials

White Diamond, Diamond, Gold, Yellow Gold, White Gold, Rose Gold, 18k Gold

A Cushion Shaped Lapis Lazuli Mounted In a 18 Carat Yellow Gold Signet Ring
Located in London, GB
A cushion shaped Lapis Lazuli mounted in a 18ct yellow gold signet ring. Marked 750 and
Category

1990s Signet Rings

Materials

Lapis Lazuli, Yellow Gold

French Modern Diamond 18 Karat Yellow Gold Signet Ring
Located in Poitiers, FR
Ring in 18 karat yellow gold, eagle head hallmark. Small signet ring in yellow gold, it is massive
Category

21st Century and Contemporary French Modern Signet Rings

Materials

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

1940s Diamond 18 Karat Yellow Gold Signet Tank Ring
Located in Poitiers, FR
Ring in 18 karat yellow gold, own hallmark. In the shape of a signet ring, this ring is decorated
Category

Vintage 1940s French Retro Signet Rings

Materials

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

1940s Sapphire 18 Karat Yellow Gold Tank Signet Ring
Located in Poitiers, FR
Ring in 18 karat yellow gold and platinum. This magnificent signet ring features a wide, flat band
Category

Vintage 1940s French Retro Signet Rings

Materials

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

Alex Jona Black & White Diamond 18 Karat White Gold Signet Ring
By Alex Jona
Located in Torino, IT
Alex Jona design collection, hand crafted in Italy, 18 karat white gold diamond pavé signet ring
Category

2010s Italian Contemporary Signet Rings

Materials

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

1940s Diamonds 18 Karat Yellow Gold Tank Signet Ring
Located in Poitiers, FR
Ring in 18 karat yellow and white gold, own hallmark. Important tank ring, the top of this antique
Category

Vintage 1940s French Retro Signet Rings

Materials

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

Signet Ring Guava Quartz Cabochon Rose Gold 18 Karat
Located in Vannes, FR
-catcher. This 18-carat rose gold ring is a refined and elegant choice, sure to enhance your unique style
Category

21st Century and Contemporary French Art Deco Signet Rings

Materials

Quartz, 18k Gold, Rose Gold

1940s Tank Diamond Asymetrical 18 Karat Gold Signet Ring
Located in Poitiers, FR
Ring in 18 karat rhodium-plated gold, owl hallmark. Asymmetrical tank ring it is decorated with a
Category

Vintage 1940s French Retro Signet Rings

Materials

White Diamond, Diamond, Gold, 18k Gold

Concave Signet Ring in 18 Karat Gold by Allison Bryan
By Allison Bryan
Located in London, GB
This curvaceous, contemporary take on the classic signet ring is crafted from solid 18-carat yellow
Category

2010s British Signet Rings

Materials

18k Gold, Gold

1940s Sapphire Diamond 18 Karat Rose Gold Tank Signet Ring
Located in Poitiers, FR
Ring in 18 karat rose gold. The geometric setting of this antique signet ring features 2 sapphires
Category

Vintage 1940s French Retro Signet Rings

Materials

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

Alex Jona Blue Sapphire White Diamond 18 Karat White Gold Signet Ring
By Alex Jona
Located in Torino, IT
diamond pavé signet ring featuring 3.81 carats of Blue Sapphires and 0.24 carats of white diamonds, F
Category

2010s Italian Contemporary Signet Rings

Materials

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

Signet Ring Pink Peach Moostone Cabochon Rose Gold 18 Karat
Located in Vannes, FR
cabochon, measuring 15 mm x 20 mm, this ring is a truly exceptional piece of jewelry. Crafted in 18-carat
Category

21st Century and Contemporary French Art Deco Signet Rings

Materials

Moonstone, 18k Gold, Rose Gold

French Retro 1950s Lapis Lazuli 18 Karat Yellow Gold Signet Ring
Located in Poitiers, FR
Ring in 18 karat yellow gold, eagle head hallmark. A sublime antique men's signet ring adorned with
Category

Vintage 1950s French Retro Signet Rings

Materials

Lapis Lazuli, Gold, 18k Gold, Yellow Gold

Antique 1936 4.33 Carat Amethyst and Yellow Gold Signet Ring
Located in Jesmond, Newcastle Upon Tyne
A fine and impressive 4.33 carat amethyst and 18 karat yellow gold dress ring; part of our diverse
Category

Vintage 1930s British Signet Rings

Materials

Amethyst, Gold, 18k Gold, Yellow Gold

Alex Jona White Diamond Pavé 18 Karat White Gold Signet Ring
By Alex Jona
Located in Torino, IT
Alex Jona design collection, hand crafted in Italy, 18 karat white gold diamond pavé signet ring
Category

2010s Italian Signet Rings

Materials

White Diamond, Diamond, 18k Gold, White Gold

French 1940s Diamonds 18 Karat Yellow Gold Platinum Signet Tank Ring
Located in Poitiers, FR
Ring in 18 karat yellow gold, eagle head hallmark, and platinum, dog head hallmark. Tank ring, it
Category

Vintage 1940s French Retro Signet Rings

Materials

Diamond, White Diamond, Gold, 18k Gold, Yellow Gold, Platinum

1930s Natural 9.36 Carat Ceylon Sapphire Diamond Art Deco Signet Ring
Located in Poitiers, FR
Ring in 18 karat white gold, owl hallmark and platinum, mascaron hallmark. This large, massive ring
Category

Vintage 1930s French Art Deco Signet Rings

Materials

Diamond, White Diamond, Sapphire, Blue Sapphire, Platinum, Gold, 18k Gol...

Cartier 1970 Modernist Enameled Signet Ring in 18 Karat Gold with Diamonds
By Cartier
Located in Miami, FL
Geometric signet ring designed by Cartier. Very unusual signet ring, created back in the 1970 by
Category

Vintage 1970s Italian Modern Signet Rings

Materials

Diamond, White Diamond, Gold, 18k Gold, Yellow Gold, Enamel

Diamond Signet Ring, 18K gold
By Michelle Massoura Fine Jewellery
Located in Nicosia, CY
Our Diamond Disk Signet Ring, is designed to fit comfortably on your pinky finger and will become
Category

2010s European Contemporary Signet Rings

Materials

Diamond, 18k Gold

18ct Gold Carnelian Signet Ring, 1958
Located in Glasgow, GB
office, marked '18' for 18 carat gold, with date letter 'C' for 1958. • Period: Mid 20th Century • Maker
Category

Vintage 1950s British Modern Signet Rings

Materials

Carnelian, Gold, 18k Gold, Yellow Gold

14k Signet Vintage Diamond Ring
Located in New York, NY
. ***** Details: ►Metal: White Gold ►Gold Purity: 14K ►Blue Diamond Weight: 0.62 carat ►Blue Diamond Clarity
Category

21st Century and Contemporary Signet Rings

Materials

Diamond, 14k Gold

0.25 CT Diamond Multi Stone 18 KT Yellow Gold Sapphire Emerald Ruby Signet Ring
Located in London, GB
step design which gives the ring its influential and solid look. Men's Signet Style ring is set in 18
Category

2010s British Modern Signet Rings

Materials

Blue Sapphire, Yellow Sapphire, Star Sapphire, Citrine, Diamond, White D...

Gucci 1990 Tom Ford Signet Ring in 18 Karat White Gold with Jasper Ironstone
By Tom Ford for Gucci
Located in Miami, FL
Signet ring designed by Tom Ford for Gucci. A modernist geometric cushion shaped ring, designed
Category

1990s Italian Modernist Signet Rings

Materials

Quartz, Jasper, 18k Gold, Gold, White Gold

18ct Gold Intaglio Signet Ring, 1964
Located in Glasgow, GB
hallmarked with Birmingham assay marks, date letter 'P' to denote 1964, and stamped '18' for 18 carat gold
Category

Vintage 1960s British Modern Signet Rings

Materials

Gold, 18k Gold, Yellow Gold

Diamond Signet Ring, Letter M, 18k Gold
By Michelle Massoura Fine Jewellery
Located in Nicosia, CY
materials that stand the test of time. 18 Karat Yellow Gold Natural Diamonds, with approximate total carat
Category

2010s European Contemporary Signet Rings

Materials

Diamond, 18k Gold

18ct Gold Bloodstone Intaglio Signet Ring, 1999
Located in Glasgow, GB
, the Millennium mark, and is stamped '750' confirming its 18 carat gold composition. Period: Late 20th
Category

1990s British Modern Signet Rings

Materials

Agate, Gold, 18k Gold, Yellow Gold

Victorian 18ct Gold Carnelian Signet Ring, 1883
Located in Glasgow, GB
hallmarked with London assay office marks, date letter 'H' for 1883, and stamped '18' to denote 18 carat gold
Category

Antique 1880s British Late Victorian Signet Rings

Materials

Carnelian, Gold, 18k Gold, Yellow Gold

Vintage Diamond and 18 Carat Gold Ring
Located in Chipping Campden, GB
star setting. Fully hallmarked London 1930. modelled in 18 carat gold. Ring Size: N or 6 3/4 Face
Category

Vintage 1930s British Signet Rings

Materials

Diamond, Gold

Retro Tank 0.45 Carats Diamonds Platinum 18 Carats Yellow Gold Ring
Located in Paris, FR
: 10.40 g Finger size: 54 (US size: 7) 18 carats yellow gold, 750/1000th and platinum (owl hallmark
Category

Vintage 1940s French Retro Signet Rings

Materials

Diamond, Yellow Gold, Platinum

18ct Gold Intaglio Signet Ring with Diamonds, 1919
Located in Glasgow, GB
is presented in its original ring box. • Assay: Birmingham assay office marked, '18' for 18 carat
Category

Vintage 1910s British Modern Signet Rings

Materials

Diamond, Gold, 18k Gold, Yellow Gold

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18 Carat Signet For Sale on 1stDibs

Find the exact 18 carat signet you’re shopping for in the variety available on 1stDibs. Frequently made of Gold, 18k Gold and Yellow Gold, this item was constructed with great care. Find an antique version now, or shop for 243 vintage or 126 modern creation for a more contemporary example of these cherished accessories. You’re likely to find the perfect 18 carat signet among the distinctive items we have available, which includes versions made as long ago as the 18th Century as well as those produced as recently as the 21st Century. There have been many well-made iterations of the classic 18 carat signet over the years, but those made by Sarosi By Timeless Gems, SHIHARA and Stephen Webster are often thought to be among the most beautiful. While most can agree that any 18 carat signet from our collection can easily elevate most outfits, but the choice of a Diamond version from the 142 available is guaranteed to add a special touch to your ensemble. See these pages for a round cut iteration of this accessory, while there are also oval cut cut and cabochon cut versions available here, too. If you’re browsing our inventory for a 18 carat signet, 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 18 Carat Signet?

The price for a 18 carat signet starts at $213 and tops out at $150,096 with these rings, on average, selling for $2,680.

Finding the Right signet-rings for You

Traditionally considered a ring for men, a vintage signet ring is a popular gift today for anyone who desires an expressive, timeless piece of jewelry that can feature all manner of engraved motifs, gemstones, specific symbols or monograms.

Whether it's an antique gold signet ring, diamond signet ring or some other classic iteration, signet rings get their name from signus, which means “sign” in Latin.

These rings, which may historically be referred to as “seal rings,” date back thousands of years and were used as a form of signature. Whatever may have been engraved on the ring — a married couple’s initials, a family crest — identified ownership for the purposes of authenticating documents and more when impressed on soft wax. During the Middle Ages, signet rings were symbols of power and prestige and common accessories for nobility. Later, during the 19th century, precious and semiprecious stones such as rubies and diamonds were added to gold signet rings as they took on a more ornate appearance than they had previously. 

In recent years, fashion has been primarily about individuality, and nothing is more personal than a jewel bearing a name or monogram. That is the reason jewelers have revived traditional signet rings, custom-engraving their designs with customers’ preferred words or symbols. Those who prefer the thrill of the hunt have a range of vintage letter charms and pendants to sift through.

And it isn't all about men's signet rings anymore, either — the accessory is for everyone. Princess Diana wore a signet ring that was a gift from Charles before their wedding, and we all know that the royals are top-tier fashion influencers, especially when it comes to rings.

Find vintage diamond signet rings, onyx signet rings and other types of rings on 1stDibs.