Sold2017Roberto Coin 18kt. Ringcenter cabochon smoky quartz approx. 29 x 20mm, backed with mother of pearl, approx. 48 round brilliant diamonds estimated total weight 1.0 carat, stamped "Roberto Coin, 18K, Italy" and with ItalianSee Sold Price
Sold2021Roberto Coin 15ct Rutilated Quartz, Diamond 18K RingRoberto Coin 15.00ct Rutilated Quartz, 0.50ctw VS1-VS2/G-H Diamond Solid 18K Rose Gold Cocktail Ring - This beautiful ring was made by Roberto Coin, and was finely crafted of solid 18k rose gold. ThisSee Sold Price
Sold2023Roberto Coin Diamond Quartz Gold RingMetal : 18k Gold Designer : Roberto Coin Gemstone : Diamonds approx. 0.45ctw. Quartz Measurements: Ring size 6 1/2, otp is 15mm Marked: RC 18k Weight: 10 grams The itSee Sold Price
Sold2019Roberto Coin Diamond & 18K Flower RingRoberto Coin 0.80ctw VS1-VS2/F-G Diamond & Solid 18K White Gold 31mm Wide Flower Ring W/Box & Guarantee Card (Retired Piece) - This exquisite ring was made by Roberto Coin, and was finely crafted of sSee Sold Price
Sold2021Roberto Coin 1.00ctw VS1-VS2/G-H Diamond, Onyx 18K RingRoberto Coin 1.00ctw VS1-VS2/G-H Diamond, 20.5mm Faceted Onyx Solid 18K Rose Gold Cocktail Ring - This beautiful ring was made by Roberto Coin, and was finely crafted of solid 18k rose gold. This ringSee Sold Price
Sold2022Roberto Coin 1.00ctw Diamond, 27.5mm Onyx 18K RingRoberto Coin 1.00ctw VS1-VS2/G-H Diamond, 27.5mm Faceted Onyx Solid 18K Rose Gold Cocktail Ring - This beautiful ring was made by Roberto Coin, and was finely crafted of solid 18k rose gold. This ringSee Sold Price
Sold2015Roberto Coin diamond and 18k yellow gold ringRoberto Coin diamond and 18k yellow gold ring featuring (33) full cut diamonds weighing a total of approximately 0.30 ct., set in articulated 18k yellow and white gold textured links, measuring approxSee Sold Price
Sold2019Roberto Coin Appassionata Diamond 18k Gold Band RingMETAL: 18K White Gold. MEASUREMENTS: Ring size - 9, ring is 15mm wide.GEMSTONES: Diamonds approx. 0.30ctw. MARKED: Signature ruby, 18Kt, Italy, Roberto Coin, 1226VI. WEIGHT: 17.0 grams. Gemstones haveSee Sold Price
Sold2023A Roberto Coin Sapphire, Iolite & Diamond Ring 18K18K white gold masterpiece ring by Roberto Coin featuring oval cabochon and faceted iolite, round faceted sapphires and diamonds prong set in flexible round slight dome design, Roberto Coin signatureSee Sold Price
Sold2023Roberto Coin 18k diamond flexible ring bandTitle: Roberto Coin 18k diamond flexible ring band Additional Information: Vintage from before 2000 Size: 7 1/2 US Materials: Gold Gemstone: Diamond Description Roberto Coin 18k diamond flexible wideSee Sold Price
Sold2021Roberto Coin 21mm Quartz, Diamond and 18K NecklaceRoberto Coin 21mm Rutilated Quartz, 0.40ctw VS1-VS2/G-H Diamond and Solid 18K Rose Gold 18" Necklace - This lovely necklace was made by Roberto Coin and was finely crafted of solid 18k rose gold. TheSee Sold Price
Sold2022Roberto Coin Diamond Enamel 18k Gold Saddle Stirrup Contour Ring Size 6.5This is an authentic band ring by Roberto Coin from the Saddle Stirrup collection. It is crafted from 18k rose gold with a polished finish and has a wide contour shape at the top with 2 saddle stirrupSee Sold Price
Sold2022Vintage Roberto Coin Pave Diamond 18k White Gold Love Knot Ring Size 6This elegant authentic vintage classic style ring by Roberto Coin, crafted from 18k white gold featuring a high polished tapered ring. The front of the ring has a beautiful love knot set with sparklinSee Sold Price
Sold2024Roberto Coin 18k Gold Diamond RingMETAL: 18k Gold. MEASUREMENTS: Ring size 6.25, top is 6.3mm wide. GEMSTONES: Diamonds approx. 0.45ctw. MARKED: Signature ruby, 18kt, 1226VI. WEIGHT: 9.2 grams.Gemstones have not been graded for colorSee Sold Price
Sold2023ROBERTO COIN "APPASSIONATA" 18K YG & DIAMOND RINGRoberto Coin limited edition "Appassionata" 18k yellow gold ring set with 50 colorless diamonds, total diamond weight 1.00 carats. Basket weave type pattern. Size 6. Set with a single marquis cut rubySee Sold Price
Sold2017Roberto Coin 18k Gold Diamond Gemstone RingMETAL: 18k gold. MEASUREMENTS: ring size - 7 3/4, ring top is 33mm x 23mm. GEMSTONES: olive green gemstone, diamonds approx. 1.00ctw. MARKED: Italy, 18kt, Roberto Coin, signature Ruby. WEIGHT: 28.3 grSee Sold Price
Sold2020Roberto Coin 18K Gold Diamond Band RingMETAL: 18k white gold. GEMSTONES: Diamonds approx. 0.48ctw. MEASUREMENTS: Ring size 6 3/4, ring band is 12mm wide. MARKED: Roberto Coin 18Kt Italy. WEIGHT: 13.9 grams.Gemstones have not been graded foSee Sold Price
Sold2021Roberto Coin 18k Gold Diamond Band RingMETAL: 18k Gold. MEASUREMENT: Ring size - 5.5, ring is 7.7mm wide. GEMSTONES: Diamonds approx. 0.30ctw. MARKED: Italy, 18kt, 1226VI signature manufacturing mark of Roberto Coin. WEIGHT: 6 grams.GemstoSee Sold Price
Sold202418K SMOKY QUARTZ & DIAMOND RINGset with a (10x8mm) faceted smoky quartz stone, highlighted by 96 round diamonds set to the bezel and band, total diamond weight approx. 2.50 carats, overall ring head 14x12mm, band width 8mm, in whitSee Sold Price
Sold2023Roberto Coin 18k Gold Diamond Band RingMETAL: 18k Gold. GEMSTONES: Diamonds approx. 0.24ctw. MEASUREMENTS: Ring size 6 1/4, band is 2mm. MARKED: Maker's ruby mark, 18k, RC. WEIGHT: 2.2 grams.Gemstones have not been graded for color andSee Sold Price
Sold2022Roberto Coin Mauresque Diamond 18k Yellow Gold Circle Pendant NecklaceFrom Roberto Coin Mauresque Collection, this gorgeous necklace is crafted from 18k yellow gold, the pendant features a fine hammered open ring frame with assorted size circles inside the frame, thereSee Sold Price
Sold2016Roberto Coin 18K Yellow Gold & Diamond RingRoberto Coin Appassionata. En suite with above, stamped 18k with signature ruby, flexible basket weave design, containing 15 small round diamonds, gross weight approx. 10.60dwts Ring size 6-1/2See Sold Price
Sold2021Roberto Coin 18K Gold Diamond Pink Sapphire Flower Ring18k gold ring by Roberto Coin Ring with approx. 5.00ctw pink sapphire and approx. 0.07ctw in diamonds. Ring size 6, ring top measures 28mm x 28mm. Marked: Ruby maker's mark, 750, Italy, Serial number.See Sold Price
Sold202318k Gold Diamond Smoky Quartz Cocktail RingMETAL: 18k Gold. GEMSTONES: Diamonds approx. 0.42ctw. Smoky quartz - 13.6mm in diameter (stone has abrasions). MEASUREMENTS: Ring size 7, ring top is 20mm wide. MARKED: G18K, D0.42ct. WEIGHT: 10.7 graSee Sold Price
7 days LeftDejaVu Estate Sales & Auctions, LLCROBERTO COIN 18K 0.55CT DIAMOND RED ROSE RINGUS$250(3 bids)
Featured2 days LeftJasper52Authentic! Roberto Coin Primavera 18k White Gold Diamond Flexible 10mm RingUS$1,000
4 days LeftRobinhood AuctionsRoberto Coin 18K White Gold 0.55ct Diamond Enamel Red Rose Statement RingUS$1,700
2024Eric's Estate & JewelrySmoky Quartz and Hearts on Fire Diamond Ring in 18k White GoldSee Sold Price
9 hrs LeftEric's Estate & JewelrySmoky Quartz and Hearts on Fire Diamond Ring in 18k White GoldUS$1,325
7 days LeftDejaVu Estate Sales & Auctions, LLCPOMELLATO RITRATTO 18K 0.53CT DIAMOND QUARTZ RINGUS$100(1 bid)
5 hrs LeftSeized Assets AuctioneersLarge Bold 18K White Gold Oval Smoky Quartz 2.50 ctw Diamond Cluster Cocktail RiUS$1
Oct 12Hess Fine AuctionsRoberto Coin 18k White Gold Black White Diamond Cable Link Ladies Ring w BoxUS$700(2 bids)