Platinum Three-Stone Rings

Vintage Emerald & Diamond Trilogy Ring 18ct Gold & Platinum Stamped Circa 1970s This stunning trilogy ring from the 1970s is a true vintage beauty. The ring is crafted in...

Three Stone Engagement Ring Platinum Stamped Makers Mark CJS Made 2025 Celebrate your love with this exquisite modern handmade engagement ring, featuring a stunning three-stone d...

Antique Emerald & Diamond Trilogy Ring 18ct Gold & Platinum Stamped Circa 1920s This stunning trilogy ring from the 1920s is a true vintage beauty. The ring is crafted in...

Vintage Emerald & Diamond Trilogy Ring 18ct Gold & Platinum Stamped Circa 1920s This stunning trilogy ring from the 1920s is a true vintage beauty. The ring is crafted in 18ct ye...

Old Ruby and Diamonds Ring hand - made in ca. 1920s- 1930s. Swedish, hallmarked 18K, maker's, Stockholm, year marks not present because of sizing done in the past. Band in solid 18 ...

Tiffany & Co. three-stone engagement ring in platinum, featuring a 0.75 carat emerald cut center diamond flanked by two matching emerald cut side stones at 0.42 carats each, totaling...

Three stones Diamond and Blue Sapphires Ring hand - made ca. 1910s - 1920s.This design with secure bezel clusters is perfect for everyday/ permanent wear. Likely British, ca. first...

Natural Colombian Emerald and diamond three stone Ring This Colombian emerald has a beautiful combination of color and tone. The emerald is 70% primary green color with a medium inte...

Exuding timeless sophistication, this exquisite three-stone ring showcases a magnificent 4.77-carat octagonal step-cut Colombian green emerald, officially certified by the GIA. The v...

Three Stone Cluster Ring set with sort of transitional bezel and claw setting with oval cut natural Blue Sapphire accented with 2 old European cut Diamonds in Platinum claws on solid 18K Orange Gold band...

Beautiful Three - stones Ring hand - made in 1918. In finest used condition after 106 years of existence :) Band with plain shoulders in solid 18ct Yellow Gold crown featuring plati...

--Stone(s):-- (3) Natural Genuine Diamonds - Round Brilliant Cut - Prong Set - J Color - VS1-SI1 Clarity - 2.90ct (exact - certified) ** See Certification Details Below for Complete ...

Three Stone Cluster Ring in solid 18K set with octagon cut natural Blue Sapphire accented with 2 old European cut Diamonds in Platinum settings. This sturdy Art- Deco inspired design...

This exceptional Edwardian five-stone ring is a beautifully balanced jewel from the 1910’s, centered by an old mine cut diamond weighing approximately 0.80 carat. Graded J-K color an...

Three - stones Ring with bezel set natural Blue Sapphire stone square cut 4 mm x 4 mm x 1.8 mm deep / ca. 0.5 ct. and two prong set old diamond cut natural Diamonds Ø 2 mm / ca. 0.06...

This exceptional contemporary collet ring is a refined homage to antique diamond craftsmanship, beautifully blending historic old mine cut diamonds with modern design sensibility. At...

Three stones Ring with crown top in Platinum on 18K Yellow Gold Ring featuring old European diamond cut Diamonds. Largest in the center Ø 3.5 mm / 0.17 ct and two on its flanks Ø 3.2...

A simply gorgeous and wonderful value Estate ring set in solid Platinum and featuring a stunning Unheated Blue Sapphire from Sri Lanka weighing an absolutely impressive 3.14ct. The b...

This striking emerald-cut diamond ring, a central piece in the image, is a remarkable acquisition for a collector of significant fine jewelry. Certified by the Gemological Institute ...

Circa 1990's. Beautiful 3 stone ring with emerald cut diamonds. The center stone has a GIA certification as well. The setting is solid and the ring is low profile making this very we...

Celebrate life's most meaningful moments with this elegant platinum sapphire and diamond three-stone ring. At the center rests a brilliant round-cut natural sapphire weighing approxi...

--Stone(s):-- (1) Natural Genuine Sapphire - Octagonal Cut - Prong Set - Brilliant Blue Color - Clean - No Heat - Ceylon - 3.49ct (exact) ** See Certification Details Below for Comp...

--Stone(s):-- (1) Natural Genuine Santamaria Aquamarine - Round Cut - 6 Prong Set - Exceptional Rich Blue - 6.43ct (exact) *See Certification Information Below* (2) Natural Genuine D...

An icon of enduring elegance, this Tiffany & Co. platinum three-stone engagement ring embodies timeless sophistication and exceptional craftsmanship. Designed in the classic Tiff...

Exquisite three-stone ring featuring a magnificent, unheated natural sapphire from Burma (Myanmar) as the centerpiece. The sapphire, weighing approximately 5 carats, is cut in an ele...

Meticulously set in platinum, this exceptional 6.03 F/VS2 emerald-cut diamond, as documented by the accompanying GIA Facsimile Report, is flanked by tapered baguettes, exemplifying t...

Beautiful Antique Art Deco Platinum Old European Diamond Sapphire Three Stone Ring. This incredible antique Art Deco old European diamond and sapphire three stone ring is crafted in ...

--Stone(s):-- (1) Natural Genuine Sapphire - Oval Cut - Prong Set - Medium Bright Blue - Clean - No Heat - Burma - 2.38ct (exact) ** See Certification Details Below for Complete Inf...

Diamond 3 Stone Crossover Ring 18ct Gold & Platinum Stamped Circa 1920’s Pretty Antique Engagement Ring. Set with Three Diamonds in an Ill...

Tiffany & Co. Ring Center Octagonal Flawless Blue Sapphire 3.39 carat Beautiful Blue Color None Heated Very Clean Natural. Sides are Two Round Natural Diamonds approx 0.60 cara...

Antique Diamond Twist Ring 18ct Gold Stamped Circa 1910 This beautiful 18ct gold and platinum ring boasts a timeless twist style, featuring three stunning diamonds. The diamonds ...

Centering an emerald cut emerald weighing 1.30 carats - transparent deep green Natural Zambian in origin with no indications of oil or clarity enhancement Prong set in gold basket an...

This elegant and refined three-stone ring by Tiffany & Co. showcases the perfect balance between vibrant color and timeless luxury. Crafted in a sophisticated combination of plat...

This exceptional Graff platinum three-stone ring is a stunning expression of timeless luxury and exceptional craftsmanship. At its center is a magnificent 3.54 carat round brilliant ...

This ladies' platinum five-stone ring is an extraordinary display of elegance, precision, and exceptional diamond quality. At its center is a magnificent 5.23 carat old mine cut diam...

Antique Diamond Ring 18ct Yellow Gold & Platinum Tested Circa 1910 This gorgeous Edwardian ring is a perfect blend of elegance and charm. The open-work design of the ring is set ...

Sparkling 3 stone diamond ring with a halo of diamonds around each diamond! This ring is a sparkle lovers dream! Set in solid and sturdy platinum.  SPECIFICATIONS: DIAMONDS:  Cente...

A simply magnificent gemstone is the star of this magnificent ring - a stunning Unheated Padparadscha Sapphire from Sri Lanka weighing 5.64ct. The central Padparadscha Sapphire is si...

Aston Estate Jewelry Presents: A stunning Tiffany & Company three-stone ring featuring a trio of brilliant-cut diamonds, each encircled by a halo of smaller diamonds. The diamonds ...

This exquisite Tiffany & Co. engagement ring features a stunning natural oval brilliant diamond at the center, certified by GIA. The center diamond displays a beautifully elonga...

This exquisite Tiffany & Co. three-stone ring showcases the house’s timeless elegance and masterful craftsmanship in a striking platinum setting. At its center sits a beautifully...

Vintage solid 18K Yellow Gold Bague au Firmamen / Ring of Heaven styled Blue Enamel and Diamond Ring. Hallmarked: 750 and Swedish customs marks. Three...

This antique three-stone ring is a beautifully classic example of period diamond jewelry, set with 0.84 carats total weight of diamonds graded I color and SI1 clarity in a refined ye...

Old Ring hand - made in White & Blue at the workshop of A.Tillander, famous Finish jewelry brand that once started in Imperial Russia and was in favor among Russian Nobility. It was ...

Tiffany & Co. GIA Certified 14 Carat Natural Blue Sapphire Diamond Platinum Ring This exceptional ring by Tiffany & Co. features a magnificent 14.00 carat natural blue sapphi...

Beautiful Antique Art Deco Platinum Old European Cut Diamond Five Stone Ring. This incredible Art Deco old European cut diamond five stone ring is crafted in Platinum and White Gold....

A breathtaking vintage fancy diamond and diamond three-stone ring set in platinum and 18k yellow gold.

The ring features a gorgeous natural fancy yellow diamond in an oval br...

A beautiful Ring made in Platinum featuring a 1.74 Carat Natural Ruby and 0.40 Carat Diamonds. Rubies are referred to as "Ratnaraj" in Sanskrit meaning the King of Gems. Early cultur...

Tiffany & Co. 5.74 carat emerald cut diamond platinum three stone ring is an extraordinary example of timeless elegance and exceptional diamond quality. Crafted in platinum by the re...

A beautiful Ring made in Platinum featuring a GIA Certified 2.40 Carat Natural Ruby and 0.52 Carat Diamonds. Rubies are referred to as "Ratnaraj" in Sanskrit meaning the King of Gems...

--Stone(s):-- (7) Natural Genuine Garnets - Cushion Cut - Claw Prong Set - Dark Blue-Green changing to Purplish Red- 5.34ct (exact stamped) ** See Certification Details Below for Com...

Old Finish Ring with 3 old European cut Diamonds, band in solid 18K Yellow Gold with Platinum clusters. Finish partially visible hallmarks, 750, maker's. Engraved with date 26.4.193...

Mahenge spinel and diamond three-stone ring in platinum, centering an 8.99-carat natural pinkish-red spinel of Tanzanian origin, certified by the American Gemological Laboratories (A...

A striking celebration of rarity and color, this magnificent ring is centered on a 5.02 carat natural ruby of exceptional vivid red saturation. Expertly fashioned in an elegant oval ...

This ruby cluster ring holds a central ruby measuring 1.5 carats. The diamond halo totals 48pts. Stones set in platinum. Fully hallmarked London 1971. Ring Size: P 1/2 or 8 Face Di...

--Stone(s):-- (1) Natural Genuine Mahenge Spinel - Cushion Brilliant Step Cut - Clow Prong Set - Vivid Slightly Pinkish GLOWY Red- Eye Clean & Fiery - NO HEAT - Tanzania - 2.57ct...

18 Karat Yellow Gold Platinum Three Diamond Antique Ring. Simple and elegant handmade three diamond ring design. All three diamonds are brilliant-cut and five prong-set in platinum. ...

Tiffany & Co. Yellow Diamond Three-Stone 18K Gold and Platinum Engagement Ring, 1.64 Total Carat Weight — Tiffany Valuation A stunning and timeless Tiffany & Co. three-stone...

The central emerald is so bright and beautiful and measures approx 25pts. Sat either side it are two bright shimmering old mine cut diamonds each measuring approx 5pts. The ring is m...

An elegant and timeless engagement ring by Harry Winston, showcasing the house’s signature refinement and precision craftsmanship. At the center is a 1.10 carat radiant cut diamond,...