Antique Square Rings

A gorgeous Art Deco full eternity ring set with twenty square cut rubies around the outside of the band.

Antique green tourmaline white gold ring. The center green stone is oblong shape and very vibrant color. Small old diamonds are set on both sides. This French origin ring is unique...

The center of the ring feature a 1.35ct square cut Colombian emerald.

Early 1900s fascinating 18 kt yellow gold antique ring with amethyst, set in claws; a period ring is a unique piece embellished with an amethyst that tells stories and revives the pa...

An Antique Georgian c.1800 Hessonite Garnet Paste solitaire ring. The Paste in a beautiful, chased gold setting on ridged shank. Size N UK, 7 US Height of the face 12mm, width 15mm. ...

This ring was made in Germany around 1920 and is in excellent, antique condition. - One transitional cut diamond, approx. 0.35 ct (F/ SI1) - Thirty-two single cut diamonds, approx. ...

This ring a true piece of history made by a world-renowned jeweler.

A George I 18ct yellow gold, rock crystal, hair-work, and black enamel mourning ring. The gold ring bears the inscription "W : DEWE · OB: 22 · NOV, 1725 · AET: 58", within a black en...

One-of-a-kind ring. A large square, centered with a American Indian head, wearing a red and white enamel feather head dress.

One-ladies Platinum ring with central square cut sapphire surrounded by 2 round brilliant cut diamonds.

The central diamond weights approximately 0.15 carats, it is very white and good clarity. 1.20 carats total approximately. Dimensions of square part: 12mm. Ring size: 58or 8.5 USA, ...

Crafted in 14k yellow gold, this highly unique ring features a square-shaped face. The front of the face features an oval-shaped motif, which is centered by a caduceus.

The square outline of this ring is at the top of the Art Deco design and will stand out on your finger.

A beautifully designed and very eye appealing antique engagement ring, this square format is highlighted by a .94ct. apx.

Literature: For comparisons, see ex-Harari Collection (a square box ring set with a ruby; published in Boardman, 1977, no. 173); Oxford, Ashmolean Museum, F466 (a similar ring set wi...

Hallmarks W.W. - makers mark for unknown maker crown - British gold standard 18 - 18ct gold Leopard's head - London Assay Office lower case "d" in truncated square - 1899 Ring Size...

A wonderful cushion shaped old cut diamond takes centre stage in this Art Deco engagement ring. The squareness of the centre stone is emphasised by the four “corner” claws in platinum.

Penngrove is an unbelievable authentic Art Deco (circa 1923) platinum ring centering a Square Step Cut natural emerald gauged at 7.25mm x 7.25mm x 4.40mm totaling approximately 1.70c...

The square setting of this ring is set with old European-cut diamonds surrounding a beautifully proportioned cushion-shaped sapphire in a cornflower blue hue.

The center diamond is set with trefoil prongs giving the ring its square look. Additionally, the ring is set with .20ct. apx.

Joan of Arc Ring by Louis Wièse (1852-1930) France, c. 1890 Gold Weight 9.3 gr.; Circumference 56.45 mm.; US size 7 3/4; UK size P ½ Cast and chased openwork gold ring with square s...

Bonato & Massoni 18K White and Rose Gold Amethyst, Diamond and Enamel Statement Ring Bonato & Massoni Amethyst, Diamond, Enamel, Gold Jewelry Suite Stones: cut-cornered square amet...

They are cased in their original wooden box with the name of Elkington Newcastle upon Tyne on the silk lining. The box is 15cm square and each ring 4.5cm in diameter.

The glass encased stem is surrounded by three rings of square buttons, with rings of rule drops, six glass arms of light and hung with swags of beads, rosettes and icicle drops, circ...

This 19th century imposing globe has an exceptional format and is equipped with a meridian ring, hour ring, height square and compass. The 3 elegant wooden legs carry a large globe.

semicircle inlaid walnut top with two drawers of oak construction, decorative inlay on the drawer fronts and down the square tapered legs. With ring handles, circa 1780.

Early Art Deco Platinum and pink gold square ring with early old European cut diamonds and a beautiful natural untreated Sapphire center.

Beautiful Antique Art Deco Platinum Old Mine Cut Diamond Square Ring. This gorgeous ring is crafted in platinum.

Center stone: Old European cut diamond Weight: Approximately .10 carats Color: G Clarity: VS2 Accent stone: 22 rose cut diamonds Weight: Approximately .10 carats Color: G-I Clarity:...

This is an Art Deco square ring crafted in 18K white gold and adorned with platinum.

At the heart of the design lies a captivating square-cut natural sapphire, beautifully encased in a striking square-shaped platinum setting.

Finely detailed vintage Art Deco era ring (circa 1920s to 1930s), crafted in 18 karat white gold. Centrally mounted rectangular cushion cut Ceylon blue sapphire measures approx. 10...

Dimensions - Plaque measures 3/8" square Ring Size - 6 3/4 (can be re-sized)

The beautiful Ceylon sapphire is a violet-blue color and makes a great statement on the hand. The medium rise square ring (9mm - 0.35 inches) sits comfortably on the finger.

This 1940's handmade diamond platinum eternity wedding band ring is a dazzling testament to eternal love. Set with 21 square step cut diamonds that have an approximate total weight o...

Crafted from 18ct yellow gold and platinum, this stunning square-shaped cluster ring features a centre natural emerald stone and a dazzling border of natural diamonds in a milgraine ...

Art Deco Platinum Antique Carré Square Cut Natural Diamond Eternity Band Wedding Ring Metal: Platinum Weight: 3.8 grams Diamonds: 20 antique square cut natural diamonds, approx. 3 CT...

Material: 14k Yellow Gold Weight: 1.06 Grams Ring Size: 4.5 ( fitted on finger, please contact us prior to purchase with sizing inquiries) Ring Width: 8.22mm (0.32") (top of the ring...

Art Deco era platinum & diamond ring in a square geometric form with an intricate pierced open work & filigree design.

It was a revelation to find this unusual ring. The ring is of English Origin. The size is 7 1/4 and yes it can be sized.

Finely detailed vintage Art Deco era ring (circa 1920s to 1930s), crafted in 900 platinum. Centrally mounted estimated 0.75 carat old European cut diamond is accented with 18 x 0.0...

The ring is about size 7.5. It is not straightfoward to measure because it is not completely round (due to the coin) -- Coin information Thrace - Chersonesos, struck circa 386-338 ...

Finely detailed vintage Art Deco amethyst & seed pearl ring (circa 1920s to 1930s) crafted in 14k yellow gold. Amethyst measures 16mm x 8mm (estimated at 6 carats). Note: few light...

A stunning antique diamond cluster ring... The square shaped panel head is set with 3.13 carats total of old cut diamonds- super sparkly, bright and white.

This square-cut diamond eternity band of alluring feminine aesthetic and classic design is crafted in solid platinum and weighs 3.7 grams.

This antique ring centers an old mine cut diamond which weighs approximately 0.90ctw and grades as "I-J" in color and "SI2" in clarity on a GIA diamond grading scale. The surrounding...

Finely detailed vintage Art Deco onyx ring (circa 1920s to 1930s) crafted in 14k yellow gold. Onyx measures 15mm x 11mm. The onyx is in good condition with light wear evident unde...

The ring is accompanied by a Professional Gem Sciences Laboratory (P.G.S.)

Old mine diamond pierced square top ring in solid Platinum, circa 1920's 1 old mine cut diamond, approx. total weight .50cts, J, SI1 4 old mine cut diamonds, approx. total weigh...

Finely detailed vintage Art Deco era ring (circa 1920s to 1930s), crafted in 18 karat white gold. Centrally mounted rectangular cut amethyst measures 19mm x 10mm (estimated at 11 c...

Center Stone: Asscher Cut Diamond Weight: Approximately .55 Carat Color: H Clarity: VS Accent Stone: 20 Calibre French Cut Blue Sapphires Weight: Approximately .80 Carats Accent Sto...

Ring in 18 karats rose gold ring. Lovely antique ring, it is set on a square platter of rose cut diamonds.

An antique 18k gold Victorian ring set with five gem square cut emeralds, circa 1890.

An A. Tillander diamond platinum tiara, circa 1910. This exceptional diamond tiara by A. Tillander is beautifully handcrafted in platinum. The tiara is composed of intertwining, sc...

A late Victorian opal and diamond tiara/necklace, consisting of seven knife-edge gold bars graduating from the centre, each set with two round cabochon-cut opals and an old-cut diamo...

Antique French Floral Design Platinum Diamond Tiara with Detachable Brooch This magnificent French tiara, crafted in luxurious platinum, is a masterpiece of elegance and refinement....

Faye Kim's 22 Karat Gold Diamond Dome Ring is beautifully matte-finished and offers spectacular, one-of-a-kind sparkle with its mesmerizing 3.88 carat stone and seamless dome setting...

A diamond solitaire cocktail ring in platinum, ca. 1970s. The ring is centred with a round brilliant cut diamond weighing approximately 2.2 carats, G/H colour and VS clarity - acco...

Elegant and refined, the Cartier Lanieres Band Ring is a timeless expression of geometric sophistication. Meticulously crafted in 18k white gold, the ring features Cartier’s signatur...

Stunning, rare Art Deco period platinum Moi et Toi ring featuring an impressive pair of kite cut natural diamond and natural sapphire gemstones in the east-west formation framed by O...

Antique Victorian Ring 18ct Gold Hallmarked Birmingham 1889 Makers Mark L B Lovely, Victorian gypsy style ring. Set with natural diamonds in a floral formation & with pretty, ...

Victorian Rose Cut Diamond Ring An 18 karat gold and silver ring set with a large central rose diamond framed by 18 smaller old mine diamonds Made circa 1900 Ring Size: 6.5 Resiz...

A pair of late Georgian open-work diamond drop earrings, set with three graduating old brilliant-cut diamonds, the principal pear shaped diamonds weighing approximately 3.5 carats th...

An art deco platinum ring formed from two optically interlaced surfaces, one set with baguette cut diamonds (app. 1.4 ct, G-H, Vs-Si) and the other surface is set with brilliant cut ...

Antique Diamond Ring 18ct Yellow & White Gold Tested Circa 1900 Introducing a stunning 18ct gold Edwardian ring, featuring a central row of calibrated rubies set in yellow gold ...