Skip to main content

Black Opal Signet Rings

6 Results
to
6
5
3
2
1
488
623
107
73
66
6.5
8
8.25
8.5
9.25
9.5
1
5
6
5
1
to
4
2
6
4
Gemstone: Black Opal
Australian Solid 1ct Black Opal Signet Ring 14K Gold Blue Green Size M.5 / 6.5
Australian Solid 1ct Black Opal Signet Ring 14K Gold Blue Green Size M.5 / 6.5

Australian Solid 1ct Black Opal Signet Ring 14K Gold Blue Green Size M.5 / 6.5

Located in SYDNEY, AU

A magnificent Australian opal signet ring displaying beautiful deep royal blue & green colours, in a 14ct yellow gold setting. This beautiful vintage piece, crafted in the 1980s, is ...

Category

Late 20th Century Australian Art Deco Black Opal Signet Rings

Materials

Opal, Black Opal, 14k Gold, Yellow Gold, Gold

Rare 3.02ct Australian Matrix Boulder Opal 18k Yellow Gold Cushion Signet Ring
Rare 3.02ct Australian Matrix Boulder Opal 18k Yellow Gold Cushion Signet Ring

Rare 3.02ct Australian Matrix Boulder Opal 18k Yellow Gold Cushion Signet Ring

By Gems and Jewels UK

Located in Birmingham, GB

Natural Australian Boulder Matrix Opal 18k Yellow Gold Cushion Signet Ring. A beautiful 3.02 carat natural matrix boulder opal with a small streak of green, blue, yellow and purple ...

Category

21st Century and Contemporary Black Opal Signet Rings

Materials

Opal, Black Opal, Gold, 18k Gold, Yellow Gold

Natural 1.56ct Australian Black Boulder Opal 18k Yellow Gold Oval Signet Ring
Natural 1.56ct Australian Black Boulder Opal 18k Yellow Gold Oval Signet Ring

Natural 1.56ct Australian Black Boulder Opal 18k Yellow Gold Oval Signet Ring

By Gems and Jewels UK

Located in Birmingham, GB

Natural Australian Black Boulder Matrix Opal 18k Yellow Gold Oval Signet Ring. A beautiful 1.56ct carat natural black opal with a bright green, blue and purple play of colour and an...

Category

21st Century and Contemporary Black Opal Signet Rings

Materials

Opal, Black Opal, Gold, 18k Gold, Yellow Gold

Natural 2.45ct Australian Black Boulder Opal 9k Yellow Gold Oval Signet Ring
Natural 2.45ct Australian Black Boulder Opal 9k Yellow Gold Oval Signet Ring

Natural 2.45ct Australian Black Boulder Opal 9k Yellow Gold Oval Signet Ring

By Gems and Jewels UK

Located in Birmingham, GB

Natural Australian Black Boulder Opal 9k Yellow Gold Signet Ring. A stunning 2.45 carat natural black boulder opal with a beautiful blue, purple and green play of colour and an exce...

Category

21st Century and Contemporary Black Opal Signet Rings

Materials

Opal, Black Opal, Gold, 9k Gold, Yellow Gold

Natural 3.45ct Australian Black Boulder Opal 18k Yellow Gold Oval Signet Ring
Natural 3.45ct Australian Black Boulder Opal 18k Yellow Gold Oval Signet Ring

Natural 3.45ct Australian Black Boulder Opal 18k Yellow Gold Oval Signet Ring

By Gems and Jewels UK

Located in Birmingham, GB

Natural Australian Black Boulder Matrix Opal 18k Yellow Gold Oval Signet Ring. A beautiful 3.45 carat natural black opal with a bright green, blue and purple play of colour and an e...

Category

21st Century and Contemporary Black Opal Signet Rings

Materials

Opal, Black Opal, Gold, Yellow Gold, 18k Gold

Australian Solid Black Opal Domed Signet Ring 9ct Rose Gold Size S / 9.25
Australian Solid Black Opal Domed Signet Ring 9ct Rose Gold Size S / 9.25

Australian Solid Black Opal Domed Signet Ring 9ct Rose Gold Size S / 9.25

Located in SYDNEY, AU

Astonishing 9ct rose gold signet ring featuring an Australian solid black opal displaying vibrant blue, violet, and green hues. The opal is beautifully set in a domed mount, adorned ...

Category

21st Century and Contemporary Australian Art Deco Black Opal Signet Rings

Materials

Black Opal, Opal, 9k Gold, Rose Gold, Gold

Related Items
Vintage 18k Yellow Gold Oval Textured Signet w/ Polished Mermaid Band Ring
Vintage 18k Yellow Gold Oval Textured Signet w/ Polished Mermaid Band Ring

Vintage 18k Yellow Gold Oval Textured Signet w/ Polished Mermaid Band Ring

Located in Montclair, NJ

Material: Solid 18k Yellow Gold Weight: 6.28 Grams Ring Size: 5.5 ( fitted on finger, please contact us prior to purchase with sizing inquiries) Ring Width: 14.18mm (0.55") (top of t...

Category

20th Century Black Opal Signet Rings

Materials

Gold, 18k Gold, Yellow Gold

18K Yellow Gold @ Sterling Silver Unisex Signet Ring
18K Yellow Gold @ Sterling Silver Unisex Signet Ring

18K Yellow Gold @ Sterling Silver Unisex Signet Ring

By Rossella Ugolini

Located in Rome, IT

Rossella Ugolini Signet Ring Collection @ Contemporary Signet Ring. Handcrafted @ made of 18K Yellow Gold crafted on Bold Silver Sterling Signet Ring. The Shank is available in dark or grey burnish sterling silver. Signet Initial...

Category

2010s Italian Contemporary Black Opal Signet Rings

Materials

Gold, 18k Gold, Yellow Gold, Sterling Silver

Australian Boulder Opal Gold Cocktail Ring
Australian Boulder Opal Gold Cocktail Ring

Australian Boulder Opal Gold Cocktail Ring

Located in Beverly Hills, CA

A fun and stylish gold ring featuring a fine 8.09 carat Australian opal! The opal is a natural boulder opal and has great play-of-color as is shows a dazzling array of blues and gree...

Category

21st Century and Contemporary American Black Opal Signet Rings

Materials

Opal, Gold, 18k Gold

Antique Edwardian 14K Gold, Opal, & Paste Signet Style Ring
Antique Edwardian 14K Gold, Opal, & Paste Signet Style Ring

Antique Edwardian 14K Gold, Opal, & Paste Signet Style Ring

Located in Philadelphia, PA

A fine antique signet style ring. In 14 karat yellow gold. With a central bezel-set rectangular opal cabochon surrounded by a halo of small single cut red paste (glass) stones in a...

Category

Early 20th Century Edwardian Black Opal Signet Rings

Materials

Opal, 14k Gold

1ct Asscher-Cut Natural Emerald Signet Ring in 18K Yellow Gold
1ct Asscher-Cut Natural Emerald Signet Ring in 18K Yellow Gold

1ct Asscher-Cut Natural Emerald Signet Ring in 18K Yellow Gold

By VimleshBadaya

Located in Jaipur, RJ

1ct Asscher-Cut Natural Emerald Signet Ring in 18K Yellow Gold Elevate your style with this unisex signet ring, showcasing a mesmerizing 1.07ct natural Asscher-cut genuine emerald, s...

Category

2010s Indian Art Deco Black Opal Signet Rings

Materials

Emerald, Gold, 18k Gold, Yellow Gold

Vintage 9ct Yellow & White Gold, Birmingham Marked 1933, Rectangular Signet Ring
Vintage 9ct Yellow & White Gold, Birmingham Marked 1933, Rectangular Signet Ring

Vintage 9ct Yellow & White Gold, Birmingham Marked 1933, Rectangular Signet Ring

Located in Brighton, GB

Antique Signet Ring 9ct Gold Stamped Hallmarked Birmingham 1933 Makers Mark A C Co- The Albion Chain Company This 9ct gold signet ring is a true masterpiece. Its rectangular pla...

Category

Mid-20th Century English Black Opal Signet Rings

Materials

9k Gold, White Gold

Antique 9k Yellow Gold Stag Signet Ring, Chester 1901, Unisex
Antique 9k Yellow Gold Stag Signet Ring, Chester 1901, Unisex

Antique 9k Yellow Gold Stag Signet Ring, Chester 1901, Unisex

Located in Jesmond, Newcastle Upon Tyne

A fine and impressive 9 karat yellow gold signet ring: part our gent's jewelry and estate jewelry collections This fine and impressive mens signet ring has been crafted in 9k yellow gold. The escutcheon shaped face of this armigerous signet ring is embellished with a chased decorated seal matrix...

Category

Early 1900s British Antique Black Opal Signet Rings

Materials

9k Gold, Yellow Gold

Vintage 9ct Signet Ring
Vintage 9ct Signet Ring

Vintage 9ct Signet Ring

Located in Chipping Campden, GB

This signet ring has a plain face which could be engraved or kept clean. Modelled in 9carat gold. Ring Size: S or 9 1/4 Face Dimensions: 14x10mm Weight: 2.5g

Category

1970s British Vintage Black Opal Signet Rings

Men’s 18K Yellow Gold Natural Sapphire Signet Ring
Men’s 18K Yellow Gold Natural Sapphire Signet Ring

Men’s 18K Yellow Gold Natural Sapphire Signet Ring

Located in Ramat Gan, IL

One of a Kind Men's Sapphire Signet Ring Designed exclusively by us, this extraordinary signet ring is a celebration of exceptional gemstones, architectural design, and master craft...

Category

2010s Israeli Artisan Black Opal Signet Rings

Materials

Sapphire, Yellow Gold

Engagement Ring: Australian Boulder Opal and Diamond in 18K Yellow Gold
Engagement Ring: Australian Boulder Opal and Diamond in 18K Yellow Gold

Engagement Ring: Australian Boulder Opal and Diamond in 18K Yellow Gold

By The Wind Opal

Located in Suwanee, GA

Engagement Ring: Australian Boulder Opal and Diamond in 18K Yellow Gold. Free Domestic USPS First Class Shipping! Free Gift Bag or Box with every order! Opal—the queen of gemstones...

Category

2010s American Arts and Crafts Black Opal Signet Rings

Materials

Diamond, Opal, Gold, 18k Gold, Yellow Gold

Men's Titanium 18 Karat Rose Gold Round Black Diamond Signet Ring
Men's Titanium 18 Karat Rose Gold Round Black Diamond Signet Ring

Men's Titanium 18 Karat Rose Gold Round Black Diamond Signet Ring

By Vitale 1913

Located in Monte-Carlo, MC

Titanium signet ring is from our Men's Collection. This masculine ring is made of 16 natural black round diamonds in total of 0.16 Carat placed on 18K r...

Category

2010s Italian Contemporary Black Opal Signet Rings

Materials

Diamond, Black Diamond, Titanium, Rose Gold

1.50ct Green onyx signet ring in 9ct yellow gold.
1.50ct Green onyx signet ring in 9ct yellow gold.

1.50ct Green onyx signet ring in 9ct yellow gold.

Located in London, GB

1.50ct Green onyx signet ring in 9ct yellow gold. Chunky signet pinky 9ct yellow gold with green onyx gemstone cushion shaped, hallmarked. Green onyx signet ring plain 9ct yellow g...

Category

21st Century and Contemporary Black Opal Signet Rings

Materials

Onyx, Yellow Gold

Previously Available Items
18K Yellow Gold Silver Black Opal Diamond Ring
18K Yellow Gold Silver Black Opal Diamond Ring

18K Yellow Gold Silver Black Opal Diamond Ring

Located in New York, NY

Rare 18K yellow gold and textured silver Black Opal ring. The ring features a oval black opal and a brilliant cut diamond approximate 0.13ct, both bezel set in 18k yellow gold Ring ...

Category

Late 20th Century American Modern Black Opal Signet Rings

Materials

Diamond, Opal, Black Opal, 18k Gold, Yellow Gold, Silver

Natural 1.60ct Australian Black Boulder Opal 9k Yellow Gold Oval Signet Ring
Natural 1.60ct Australian Black Boulder Opal 9k Yellow Gold Oval Signet Ring

Natural 1.60ct Australian Black Boulder Opal 9k Yellow Gold Oval Signet Ring

By Gems and Jewels UK

Located in Birmingham, GB

Natural Australian Black Boulder Opal 9k Yellow Gold Signet Ring. A stunning 1.60 carat natural black opal with a beautiful blue and purple play of colour and an excellent oval cabo...

Category

21st Century and Contemporary Black Opal Signet Rings

Materials

Opal, Black Opal, Gold, 9k Gold, Yellow Gold

Vintage 14KT Yellow Gold Black Opal Signet Ring, Gent's Opal Ring
Vintage 14KT Yellow Gold Black Opal Signet Ring, Gent's Opal Ring

Vintage 14KT Yellow Gold Black Opal Signet Ring, Gent's Opal Ring

Located in McLeansville, NC

A vintage 14 karat yellow gold black opal signet ring. This gent's opal ring features a cushion table black opal center stone, set in a ridged, tapered mounting. Stones: - black opa...

Category

1970s Vintage Black Opal Signet Rings

Materials

Opal, Black Opal, Gold, 14k Gold, Yellow Gold

Black Opal Ring with Ruby-Red Spinels & Diamonds 37 Grams Certified No-Heat
Black Opal Ring with Ruby-Red Spinels & Diamonds 37 Grams Certified No-Heat

Black Opal Ring with Ruby-Red Spinels & Diamonds 37 Grams Certified No-Heat

Located in Northampton, MA

The finest solid black opal from Australia's legendary Lightning Ridge mine, aflame with vivid red and orange -the rarest colors of black opal- in a swirling sea of blues, greens and...

Category

2010s American Artisan Black Opal Signet Rings

Materials

Diamond, Opal, Spinel, Black Opal, 18k Gold

Exceptional Boulder Black Opal 18K Yellow Gold Signet Ring
Exceptional Boulder Black Opal 18K Yellow Gold Signet Ring

Exceptional Boulder Black Opal 18K Yellow Gold Signet Ring

Located in Vilnius, Vilniaus apskr.

This vintage signet style ring is crafted in 18K yellow gold. It features an oval shape natural boulder black opal which shows flashes of blue and g...

Category

Mid-20th Century Belgian Modern Black Opal Signet Rings

Materials

Opal, Black Opal, Yellow Gold

1.66 Carat Black Opal Rose and Yellow Gold Bezel Set Handmade Dome Signet Ring
1.66 Carat Black Opal Rose and Yellow Gold Bezel Set Handmade Dome Signet Ring

1.66 Carat Black Opal Rose and Yellow Gold Bezel Set Handmade Dome Signet Ring

By Sarosi By Timeless Gems

Located in Los Angeles, CA

Black opals are rare, especially when they are fine quality like the 1.66 carat black opal in this beautiful custom-designed ring. This opal displays vibrant neon blue and green flas...

Category

21st Century and Contemporary Artisan Black Opal Signet Rings

Materials

Opal, Black Opal, Yellow Gold, Gold, 18k Gold, Rose Gold