Cobalt Ring

This beautifully crafted ring features hand selected Black Onyx beads set in 18k Yellow Gold. The gems are chosen for their quality and colour to best echo those hues in Édouard Mane...

Stambolian 18K Gold and Diamonds Cobalt Blue Enamel Two Cabochon Tanzanites Ring This state of the art ring is from the Stambolian "Colors of Life" collection.

A mesmerising cushion cut blue spinel encircled by a delicate ring of brilliant cut diamonds, surrounded by a glittering pave' of black and white diamonds Details Blue Cobalt Spinel...

18 Karat Rose Gold Diamond Cobalt Navy Blue and Brown Enamel Wide Band Ring Apprx. 0.50 carat G color, VS clarity diamonds total weight Band has a ring guard that can be removed if...

Pure cobalt. Shallow dome. Polished finish. This timeless design takes on a new life in brightly polished cobalt.

Pure cobalt. Flat profile. Polished finish. Four times harder than platinum. Five times harder than gold. This classic cobalt wedding band features a flat polished profile with a ve...

Pure cobalt. Narrow width. Slight dome. No design is as classic.

This beautifully crafted bangle features hand selected Black Onyx beads set in 18k Yellow Gold. The gems are chosen for their quality and colour to best echo those hues in Édouard Ma...

Inspired by the tranquil depths of the Mediterranean Sea, the Cobalt Blue Porcelain Ring adds a touch of refinement to any outfit.

A rare Russian mid-19th century gentleman's ring from the Romanov era, period of Tsar Nicholas I, set with an old-mine-cut diamond surrounded by eight smaller full cut diamonds on si...

Stambolian 18 Karat Yellow Gold Diamond Blue Enamel Cigar Band Ring This beautiful 18k Yellow Gold and Diamond Ring with Cobalt Navy Blue Enamel is from the Stambolian "Colors of Li...

The natural sapphire is a lovely rich cobalt blue color. The ring is in good condition.

Sterling silver engraved laurel leaf dome ring accented with hard Cobalt enamel. This ring measures 7/16" in width at the top and is a size 6.

Movement #995A (17 Jewels) Serial #F102662 Case #2545 Diamonds TCW = Appx 3 Cts (VS/SI, G - H Color) 900 Platinum Round Case w/ Diamond Accents Nice Milgrain Detailing 17 mm in Diame...

Hamilton Ladies Platinum Diamond Dress Watch Delicate Filigree Mov #911 Movement #911 Serial #T73771 Year of Manufacture: 1939 Platinum Tonneau Case w/ Diamond Accents 14 mm Wide (15...

Ring Size: 6. Alberto offers complimentary sizing on all rings.

Circa 1780 This rare late 18th century ring is finely crafted in gold and silver. The ring features a cobalt blue guilloche enamel plaque applied with a floral motif silver applique...

A cushion mixed cut sapphire is the center stone in this ring, a cobalt abyss that sparkles like the depths of the sea.

A round mixed-cut sapphire sits in the center of this ring - its cobalt facets magnified by any light it touches.

One 14 karat yellow gold cobalt blue enamel oval dome ring, designed by K.

One of a kind eighteen karats white gold cocktail ring Ceylon cabochon-shaped sapphire weighing 4.10 carats Matched pair of trillion Ceylon bubblegum pink sapphire weighing 2.32 Su...

A vintage 18 karat yellow gold and blue enamel dome knot ring. This ring features three domed row in a knot motif with textured detailing and thin cobalt blue enamel lines throughout.

The simple and elegant ring features cobalt blue lapis lazuli, bezel set into an oval mount.

A cabochon sapphire of over four carats sits at the center of this ring, its smooth cobalt surface a real sight to behold.

Product Information: GEMSTONE TYPE: Excellent Cobalt Blue Loose Spinel Gem WEIGHT: 1.80 Carats DIMENSIONS: 8.5 x 8.3 x 3.9 mm CLARITY: Eye Clean SHAPE: Triangular CUT: Trilliant Cut ...

The color is H-I SI1 to SI2. The ring weighs 6.9 grams and is a 6.5. This cobalt blue snake ring is rare as cobalt blue enamel was prevalent in the late 1800's.

This 18K snake ring is enameled in Cobalt blue and has Rubies and Diamonds all around.

Size: 10 1/2 Brand: Scott Kay Design: Faith Metal Content: Cobalt Style: Wedding Band without Stones Features: Brushed & Smooth Finishes with Comfort Fit Interior Face Height...

Platinum ring set with a 2.69 carat Blue Cobalt Spinel & 58pcs.

Elegant George III 9K gold ring decorated in cobalt blue & white enamel in a flower and leaf design.

The beautiful floral motif on the top and sides of the ring displayed with pastel colors of pink, blue, green and orange are complimented by a border of cobalt blue.

The elusive 'Double C' ring is a classic made by Cartier in the 1970s. Diamonds adorn the 'CC' motif, perched upon rich cobalt blue lapis lazuli.

Lapis lazuli measures 7.5mm wide (in very good condition and free of cracks or chips). The domed ring, set with cobalt blue lapis lazuli and diamond separators, makes a statement o...

Eighteen karats white gold tiny eternity prong-set stacking band Sapphires weighing 0.60 carat East sapphire measures 1.3 millimeter The sapphire hue tone color is cobalt blue The ...

Vintage silver spiral ring with oval cobalt blue cabochon. Stamped Mexico, 925.

18k yellow gold disc ring with a center .25ct old mine cut diamond and an outer circle of mine and rose cut diamonds, all set in a field of cobalt blue enamel, with an inner circle o...

Beautiful and rare antique French ring, circa 1790. It is made of gold, silver, enamel and diamonds. The weight of the diamonds is approximately 4 carats.

Stambolian 18 Karat Yellow Gold Diamond Oval Labradorate Cobalt Blue Enamel Ring This ring from the Stambolian "Colors of Life" collection is crafted in solid 18k yellow gold with c...

Large navette shaped ring of cobalt blue enamel with a starry night design of old rose cut diamonds.

The late 18th century tradition of a ring with a cobalt or royal blue field upon which a monogram or cypher in applied diamonds is the ancestor of this antique love ring.

The cover glass has light scratches that caught the flash of our camera, but which do not show to the naked eye and the portrait is lovely, only .5" in diameter yet with great detail...

Movement #995A (17 Jewels) Serial #F102662 Case #2545 Diamonds TCW = Appx 3 Cts (VS/SI, G - H Color) 900 Platinum Round Case w/ Diamond Accents Nice Milgrain Detailing 17 mm in Diame...

Movement #995A (17 Jewels) Serial #F102662 Case #2545 Diamonds TCW = Appx 3 Cts (VS/SI, G - H Color) 900 Platinum Round Case w/ Diamond Accents Nice Milgrain Detailing 17 mm in Diame...

Drawing inspiration from the calming depths of the Mediterranean Sea, this Cobalt Blue Porcelain Ring is perfect for adding a touch of sophistication to any outfit.

This stylish 9ct gold ring is a strikingly bold design. The cobalt blue of the lapis lazuli stone is offset perfectly by the warm yellow gold of the setting.

This spinel owes its striking teal colour to traces of cobalt. While cobalt was commonly added to synthetic spinels in the early 20thcentury, natural cobalt spinels such as this are ...