Diamond Platinum Solitaire Engagement Ring US Auctions Australian Auctions Austrian Auctions Belgian Auctions Canadian Auctions French Auctions German Auctions Irish Auctions Italian Auctions Dutch Auctions Spanish Auctions Swiss Auctions GB Auctions Best Match Items Ending First Newly-Listed Items First Price + Shipping: Lowest First Price + Shipping: Highest First Estate Oval Cut Diamond Solitaire Engagement Ring Solid Platinum Fine Jewelry $4,389.00 Tiffany Co Platinum Diamond Engagement Solitaire Ring 142 Ct 4050000 $28,500.00 3+ ct E VS2 gia round natural diamond solitaire engagement 4 prong ring platinum $98,000.00 151CT ROUND VINTAGE ESTATE DIAMOND SOLITAIRE ENGAGEMENT WEDDING RING CIRCA 1920 $6,800.00 080ct Certified Round G SI1 VG Diamond Platinum Cathedral Solitaire Ring 45gm $2,482.00 156ct Certified Marquise F VS1 VG Diamond Platinum Classic Solitaire Ring 52gm $6,949.00 TIFFANY CO DIAMOND SOLITAIRE ENGAGEMENT RING PLATINUM 18K GOLD 2 boxes sz 6 $2,400.00 055ct Certified Round E VS1 Diamond Platinum Cathedral Solitaire Ring 85gm $1,760.00 108ct Certified Round D SI1 Ideal Diamond Platinum Basket Solitaire Ring 44gm $6,217.00 PLATINUM DIAMOND ENGAGEMENT RING SZ 65 $785.00 131ct Certified Round E SI1 EX Diamond Platinum Cathedral Solitaire Ring 85gm $5,443.00 075ct Certified Round G SI1 EX Diamond Platinum Classic Solitaire Ring 37gm $2,263.00 CARTIER ENGAGEMENT RING SETTING BALLERENE SOLITAIRE W BRILLIANT CUT DIAMONDS $1,899.99 080ct Certified Round G VS2 EX Diamond Platinum Classic Solitaire Ring 37gm $2,309.00 105ct Certified Emerald D VS1 EX Diamond Platinum Classic Solitaire Ring 48gm $5,892.00 Tiffany Co Diamond Solitaire Platinum Engagement Ring $2,000.00 107ct Certified Round H VS2 Ideal Diamond Platinum Classic Solitaire Ring 46gm $4,537.00 504ct Certified Round F SI3 Ideal Diamond Platinum Classic Solitaire Ring 53gm $22,343.00 117 CT Diamond Solitaire Platinum Ring IGI Certification NATURAL DIAMOND $1,500.00 264ct Certified Princess F SI2 EX Diamond Platinum Classic Solitaire Ring 51gm $12,365.00 082ct Certified Round E VS2 VG Diamond Platinum Cathedral Solitaire Ring 45gm $2,625.00 BLUE NILE 73ct GIA Oval DIAMOND PLATINUM SOLITAIRE Size 55 $2,899.00 127ct Certified Marquise E VS2 VG Diamond Platinum Classic Solitaire Ring 52gm $4,715.00 215ct Certified Princess I VS1 EX Diamond Platinum Cathedral Solitaire Ring 8gm $11,349.00 16 Carat Diamond solitaire set in platinum size 8 $9,000.00 167ct Certified Cushion G SI2 Diamond Platinum Trellis Solitaire Ring 84gm $4,536.00 Tiffany Co Platinum Round Diamond Solitaire Engagement Ring GIA 222 ct F VVS2 $58,000.00 Other Diamond Platinum Solitaire Engagement Ring that might interest you 22.24 ct GIA fancy yellow VS heart shape diamond solitaire engagement ring 18k $499,999.00 13 ct J SI old mine brilliant diamond engagement antique solitaire ring platinum $220,000.00 10.29 ct H VS2 natural radiant loose diamond solitaire engagemen ring platinum $205,000.00 TIFFANY & CO 4.5ct SOLITAIRE DIAMOND & PLATINUM ENGAGEMENT RING + BOX & CERTIF $185,000.00 4.08 Ct. Round Cut Diamond Solitaire Pendant Platinum $179,175.00 5.00 Ct Princess Cut Solitaire Diamond Engagement Ring Diamond FVS1 Platinum950 $158,000.00 3+ ct E VS2 gia round natural diamond solitaire engagement 4 prong ring platinum $98,000.00 7.00 ct H SI2 natural round brilliant diamond engagement solitaire ring platinum $75,000.00 Certified 7.52ct Round G-VS2 Ideal Diamond Platinum Classic Solitaire Ring 5.3gm $71,451.00 7.53ct Certified Round F-SI1 EX Diamond Platinum Classic Solitaire Ring 5.3gm $71,451.00 5.72 ct EGL D SI2 cushion natural diamond solitaire engagement ring platinum $65,000.00 Tiffany & Co Platinum Round Diamond Solitaire Engagement Ring GIA 2.22 ct F VVS2 $58,000.00 7.50 ct Excellent Cut Round F-SI1 Diamond Platinum Classic Solitaire Ring 5.3gm $53,956.00 7.52 CT VERY GOOD ROUND F-SI1 PLATINUM CLASSIC SOLITAIRE DIAMOND RING 5.3gm $52,587.00 5.04 ct F SI princess cut diamond solitaire antique vintage style ring platinum $50,700.00 Certified 5.21ct Round E-VS1 Ideal Diamond Platinum Classic Solitaire Ring 5.3gm $49,825.00 5.22ct Certified Round D-VS2 Ideal Diamond Platinum Classic Solitaire Ring 5.3gm $49,825.00 3.53GVS 3 Stone Round Diamond Engagement Ring Solitaire $49,450.00 2.54ct Round Solitaire Engagement Diamond Bridal Ring in Platinum GIA Certified $47,755.00 2.51GVS Certified Solitaire Diamond Engagement Ring PLT $47,100.00 5.04 ct Round cut Diamond Engagement Wedding Solitaire Platinum Ring E VS2 $44,000.00 3.02 ct GIA certified G SI1 emerald cut diamond solitaire lucida ring platinum $41,509.00 4.61 CT FANCY LIGHT YELLOW CUSHION CUT DIAMOND PLATINUM SOLITAIRE RING GIA CERT $40,868.00 3.21 Ct. Asscher Cut Diamond Solitaire Engagement Platinum Ring EGL G,VS1 $38,065.00 5.19 ct Excellent Cut Round D-VS2 Diamond Platinum Classic Solitaire Ring 5.3gm $37,624.80 Certified 4.55ct Round F-VS2 Ideal Diamond Platinum Classic Solitaire Ring 5.3gm $37,586.00 4.56ct Certified Round E-SI1 EX Diamond Platinum Classic Solitaire Ring 5.3gm $37,586.00 1.57ct Certified Round D-IF VG Diamond Platinum Classic Solitaire Ring 4.8gm $37,163.00 Certified 1.53ct Round D-IF Ideal Diamond Platinum Trellis Solitaire Ring 7.8gm $37,154.00 1.54ct Certified Round D-IF EX Diamond Platinum Trellis Solitaire Ring 7.8gm $37,154.00 1.50 D-IF Flawless Diamond Engagement Solitaire Anniversary Platinum 950 GIA $37,000.00 2.77 ct F VS2 round ideal cut diamond solitaire engagement 4 prong ring platinum $36,950.00 4.50 Ct. Radiant Diamond Engagement Ring Solitaire EGL $36,500.00 4.50 Ct. Radiant Diamond Engagement Ring Solitaire EGL $36,500.00 4.13 ct H SI1 natural radiant cut diamond solitaire engagement ring platinum $36,500.00 1.53ct Round D-IF Ideal Diamond Platinum Cathedral Solitaire Ring 11.8gm +Cert $36,482.00 1.54ct Certified Round D-IF VG Diamond Platinum Classic Solitaire Ring 4.6gm $36,402.00 2.04 ct F internally flawless GIA cushion diamond solitaire ring platinum size 5 $35,500.00 4 ct EGL USA J SI2 natural round brilliant cut lucida solitaire ring platinum $35,400.00 4.70 CARAT ROUND DIAMOND ENGAGEMENT SOLITAIRE RING GVS2 $32,499.99 4.08 Ct Asscher Diamond Engagement Ring Solitaire EGL $31,895.00 4.08 Ct Asscher Diamond Engagement Ring Solitaire EGL $31,895.00 3 3/4 ct EGL H SI1 cushion diamond solitaire engagement antique ring platinum $29,950.00 3.00 Ct. Cushion Cut Diamond Solitaire Engagement Ring $29,640.00 Certified 4.24ct Round K-VS1 Ideal Diamond Platinum Classic Solitaire Ring 5.3gm $29,454.00 4.25ct Certified Round J-VS1 Ideal Diamond Platinum Classic Solitaire Ring 5.3gm $29,454.00 3.35 ct I SI2 natural heart shape solitaire engagement ring platinum size 5.5 $28,550.00 Certified 3.47ct Cushion H-VS1 EX Diamond Platinum Trellis Solitaire Ring 8.4gm $28,493.00 3.48ct Certified Cushion G-VS1 Diamond Platinum Trellis Solitaire Ring 8.4gm $28,493.00 4.53 ct Excellent Cut Round E-SI1 Diamond Platinum Classic Solitaire Ring 5.3gm $28,382.40 3.52 ct J VS2 natural princess cut diamond solitaire engagement ring platinum $28,290.00 1.54 ct Ideal Round D-IF Diamond Platinum Classic Solitaire Ring 4.8g Certified $28,063.20 1.51 ct Excellent Cut Round D-IF Diamond Platinum Trellis Solitaire Ring 7.8gm $28,056.00 3.8 CT G SI NOT ENHANCED PRINCESS CUT DIAMOND SOLITAIRE ENGAGEMENT RING PLATINUM $28,050.00 4.21 Ct Princess Cut Diamond Solitaire PLATINUM EGL $27,895.00 4.55 Ct Round Cut Engagement Solitaire Ring PLATINUM $27,895.00 4.55 Ct Round Engagement Solitaire Ring PLATINUM EGL $27,895.00 4.21 Ct Princess Cut Diamond Solitaire PLATINUM EGL $27,895.00 4.55 CT VERY GOOD ROUND E-SI1 PLATINUM CLASSIC SOLITAIRE DIAMOND RING 5.3gm $27,662.25 1.51 ct Ideal Round D-IF Diamond Platinum Classic Solitaire Ring 4.6g Certified $27,488.80 1.56 CT EXCELLENT ROUND D-IF PLATINUM CLASSIC SOLITAIRE DIAMOND RING 4.8gm $27,351.75 1.53 CT VERY GOOD ROUND D-IF PLATINUM TRELLIS SOLITAIRE DIAMOND RING 7.8gm $27,344.25 1.53 CT EXCELLENT ROUND D-IF PLATINUM CLASSIC SOLITAIRE DIAMOND RING 4.6gm $26,791.50 Certified 3.19ct Round D-VS2 Ideal Diamond Platinum Classic Solitaire Ring 5.3gm $25,824.00 3.20ct Certified Round D-SI1 Ideal Diamond Platinum Classic Solitaire Ring 5.3gm $25,824.00 4.02 ct J SI2 natural oval brilliant diamond solitaire engagement ring platinum $25,700.00 Certified 5.10ct Round F-SI2 Ideal Diamond Platinum Classic Solitaire Ring 5.3gm $25,693.00 5.11ct Certified Round E-SI3 EX Diamond Platinum Classic Solitaire Ring 5.3gm $25,693.00 3.4 ct natural I vs2 princess cut diamond solitaire engagement ring platinum $25,500.00 2 ct H SI1 GIA certif natural round diamond solitaire engagement ring platinum $25,500.00 Certified 3.19ct Round D-VS2 EX Diamond Platinum Cathedral Solitaire Ring 8.5gm $25,413.00 4.13 CARAT ROUND DIAMOND ENGAGEMENT SOLITAIRE RING FVS2 $24,999.99 Certified 2.72ct Round F-VS1 VG Diamond Platinum Basket Solitaire Ring 6.6gm $24,976.00 Tiffany & Co. PLATINUM Round Diamond E/VVS1 1.18ct Engagement Ring Solitaire $24,950.00 2.73ct Certified Round E-VS2 Ideal Diamond Platinum Classic Solitaire Ring 4.8gm $24,591.00 3.01 CARAT ROUND DIAMOND ENGAGEMENT SOLITAIRE RING FSI1 WEDDING RING $24,499.99 Certified 2.72ct Round F-VS1 VG Diamond Platinum Cathedral Solitaire Ring 8.5gm $24,294.00 3.65 Carat. Round Diamond Engagement Solitaire Ring - FSI1 $23,999.99 4.02 ct EGL USA I VS1 radiant diamond solitaire engagement ring platinum size 5 $23,990.00 3.95 Asscher Cut Diamond Engagement Ring Solitaire EGL $23,695.00 4.13 Ct Asscher Cut Engagement Solitaire Ring PLATINUM $23,695.00 3.95 Asscher Cut Diamond Engagement Ring Solitaire EGL $23,695.00 4.13 Ct Asscher Cut Engagement Solitaire Ring PLATINUM $23,695.00 4.13 Ct Asscher Engagement Solitaire Ring PLATINUM EGL $23,695.00 4.15 Carat Round Cut Solitaire Diamond Ring GSI1 WEDDING RING $23,499.99 5.20 CARAT ROUND DIAMOND ENGAGEMENT SOLITAIRE RING FSI $22,999.99 4.04ct Platinum Solitaire Engagement Pear Diamond Ring $22,999.95 5.20 Carat Round Diamond Engagement Solitaire Ring GIA Certified Fancy Yellow $22,499.99 4.62 CARAT ROUND DIAMOND ENGAGEMENT SOLITAIRE RING HVS2 $22,499.99 Certified 5.03ct Round G-SI2 Ideal Diamond Platinum Classic Solitaire Ring 5.3gm $22,343.00 5.04ct Certified Round F-SI3 Ideal Diamond Platinum Classic Solitaire Ring 5.3gm $22,343.00 4.22 ct Excellent Cut Round J-VS1 Diamond Platinum Classic Solitaire Ring 5.3gm $22,241.60 Certified 2.87ct Round G-VS1 VG Diamond Platinum Cathedral Solitaire Ring 9.5gm $22,037.00 2.88ct Certified Round F-VS2 Diamond Platinum Cathedral Solitaire Ring 9.5gm $22,037.00 3.63 ct G SI2 natural cushion diamond solitaire engagement ring platinum size 5 $21,950.00 3.65ct Certified Cushion E-SI1 Diamond Platinum Classic Solitaire Ring 4.8gm $21,937.00 4.24 CT IDEAL ROUND J-VS1 PLATINUM CLASSIC SOLITAIRE DIAMOND RING 5.3gm $21,677.25 3.45ct Excellent Cut Cushion G-VS1 Diamond Platinum Trellis Solitaire Ring 8.4gm $21,516.00 1.82 CT ROUND SOLITAIRE WEDDING DIAMOND RING SET IN PLATINUM SETTING CERTIFIED $21,500.00 Category: Diamond Solitaire