Platinum Round Diamond 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 Vintage Platinum Round Cut 81ct Diamond Engagement Ring $1,625.00 2 Carat Diamond Engagement Ring w Baguette Round Accent Solid Platinum $8,000.00 19 Diamond Engagement Ring Round Vintage Setting Platinum s55 Semi Mount $4,270.00 160 ct Round 3 Stone Diamond Engagement Ring Platinum $3,500.00 13 Diamond Engagement Ring FG Round Semi Mount Pave Platinum s55 $3,130.00 ROUND BRILLIANT CUT DIAMOND ENGAGEMENT WEDDING RING 18K WHITE GOLD PLATINUM $795.00 19 Round Pave Diamond Vintage Engagement Ring Semi Mount Platinum 4sz Settings $3,000.00 329ct Round Brilliant Cut Diamond Engagement Ring and Anniversary Ring $34,495.00 140 ct Round Cut Diamond Engagement Solitaire Ring Platinum $5,400.00 CANARY YELLOW 166 CT NATURAL ROUND DIAMOND SOLITAIRE PLATINUM ENGAGEMENT RING $3,295.00 136 CARAT ROUND DIAMOND ENGAGEMENT SOLITAIRE RING WEDDING RING GI1 $1,499.99 39500 GRAND 369CT ROUND BAGUETTE DIAMOND PLATINUM ENGAGEMENT RING 344CT CNTR $13,900.00 486 carat Round Diamond Engagement Wedding Solitaire Platinum Ring H color SI1 $29,800.00 Solid Platinum Baguette Round Diamond Wedding Engagement Anniversary Ring Band $549.99 516 Ct Round Cut Center Diamond in Platinum Engagement Ring 665 Carat total $75,000.00 229 Carat Round Diamond Solitaire Engagement Ring FSI2 Wedding Ring $6,499.99 Diamond Ring FG Round Engagement Setting Platinum s55 Semi Mount $3,370.00 149ct Diamond Engagement Ring Round Semi Mount Pave Platinum s55 $3,230.00 Tiffany Co Platinum 126ct I VVS1 Round Diamond Solitaire Engagement Ring $13,300.00 03ct Diamond Engagement Ring Round Semi Mount Bezel Platinum s55 $1,550.00 PLATINUM ROUND BRILLIANT DIAMOND ENGAGEMENT RING 238 Carats WHITE CLEAN $11,500.00 Art Deco Style 49 Round Brilliant Diamond Blue Sapphire Platinum Ring Sz 65 $699.99 050 Ct Round Diamond Engagement Ring Platinum G SI1 $1,351.50 Stunning Sparkling Round Diamond Platinum Vintage Estate Engagement Ring $747.15 GIA cert diamond ring 92ct round brilliant with marquise platinum $1,900.00 Estate Platinum Diamond Engagement Ring Round 130 ct $3,399.99 402 ct Round Cut Diamond Engagement Wedding Solitaire Platinum Ring H Color SI1 $21,300.00 Other Platinum Round Diamond Engagement Ring that might interest you 13.70 ct K VS round brilliant natural diamond engagement antique ring platinum $230,000.00 5.70 Ct. Round Cut Halo Micro Pave Diamond Engagement Ring w/ 2 Bands EGL D,VS1 $206,260.00 5.70 Ct Round Cut Halo Micro Pave Diamond Engagement Ring Set EGL D,VS1 Platinum $206,260.00 5.16 Ct. Round Cut Halo Micro Pave Diamond Engagement Ring D,VS1 EGL Platinum $204,425.00 5.16 Ct. Round Cut Halo Micro Pave Diamond Engagement Ring Platinum D,VS1 EGL $204,425.00 5.16 Ct. Round Cut Halo Micro Pave Diamond Engagement Ring D,VS1 EGL Platinum $204,425.00 5.33 Ct. Round Cut Diamond Engagement Ring w/ Round Pave EGL D,VS1 Platinum $204,360.00 5.08 Ct. 3 Stone Round Cut Diamond Trellis Design Engagement Ring D,VS1 EGL $204,345.00 5.08 Ct. 3 Stone Round Cut Diamond Trellis Design Engagement Ring D,VS1 EGL $204,345.00 5.08 Ct. 3 Stone Round Cut Diamond Trellis Engagement Ring D,VS1 EGL Platinum $204,345.00 Diamond Engagement Ring 6.50 ct Round Cut in Platinum $200,514.15 5.07 ct AGS G VS2 round excellent ideal cut loose diamond ring platinum size 5.5 $199,900.00 4.68 Ct. Round Cut Diamond Engagement Ring Platinum $180,695.00 4.08 Ct. Round Cut Diamond Solitaire Pendant Platinum $179,175.00 Platinum and Diamond Engagement Ring 4.10ct Round Brilliant Cut $171,199.99 2.51 CT D FLAWLESS GIA EXCELLENT POLISH ROUND DIAMOND ENGAGEMENT RING PLATINUM $170,000.00 Diamond Engagement Ring 6.94 carat Round Cut in Platinum! $163,284.15 7.23ct Round Brilliant Cut Diamond Engagement Ring and Anniversary Ring $129,590.00 Diamond Bridal Engagement Ring 5.90 Ct Round Cut Platinum!Discounted! Certified! $126,539.80 Diamond Bridal Set Ring with 6.16 CARAT Round Cut H/SI1 Platinum $126,350.99 Diamond Bridal Set Ring with 6.15 CARAT Round Cut H/SI1 Platinum $126,350.99 Diamond Engagement Ring with 5.91 CARAT Round Cut H/SI1 Platinum $126,200.99 GIA Platinum 4.42 Carat Round Brilliant & Baguette Cut Diamond Engagement Ring $120,000.00 Asscher Cut Diamond Ring with Round and Kite Diamonds Accents in Platinum 950 $110,000.00 3+ ct E VS2 gia round natural diamond solitaire engagement 4 prong ring platinum $98,000.00 4.85 ct GIA Certified Round Diamond 'Loop Style' Engagement Ring $91,139.00 6.34 Ct. Round Cut Diamond Engagement Ring w/ Round Pave G,SI2 Platinum 950 $81,180.00 6.34 Ct. Round Cut Diamond Engagement Ring w/ Round Pave Setting G,SI2 Platinum $81,180.00 6.37 Ct. Asscher Cut Micro Pave Round Diamond Engagement Platinum Ring G,VS2 EGL $78,310.00 6.37 Ct. Asscher Cut w/ Round Cut Micro Pave Diamond Ring G,VS2 EGL Platinum 950 $78,310.00 6.37 Ct. Asscher Cut Micro Pave Round Diamond Engagement Ring G,VS2 EGL Platinum $78,310.00 6.36 Ct Asscher Cut,Trapezoid & Round Diamond Engagement Ring EGL G,VS2 Platinum $77,770.00 6.36 Ct Asscher Cut,Trapezoid & Round Diamond Engagement Ring EGL G,VS2 Platinum $77,770.00 6.36 Ct Asscher Cut,Trapezoid & Round Diamond Engagement Ring EGL G,VS2 Platinum $77,770.00 6.19 Ct. Asscher Cut w/ Round Cut Diamond Bridal Ring Set EGL G,VS2 Platinum $77,305.00 6.19 Ct. Asscher Cut w/ Round Cut One Row Halo Diamond Ring G,VS2 EGL Platinum $76,885.00 5.87 Ct Asscher Cut, Princess & Round Diamond Engagement Platinum Ring G,VS2 EGL $76,420.00 5.87 Ct. Asscher Cut,Princess & Round Diamond Engagement Platinum Ring G,VS2 EGL $76,420.00 $189998 11.51CT ROUND CUT YELLOW DIAMOND ENGAGMENT RING PLAT 18K VS SIZE 6.25 $75,999.00 5.16 Ct Round Cut Center Diamond in Platinum Engagement Ring 6.65 Carat total $75,000.00 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 7.52 CT VERY GOOD ROUND F-SI1 PLATINUM CLASSIC SOLITAIRE DIAMOND RING 5.3gm $70,116.00 2.60 Carat Round Brilliant Cut & Kite Diamond 3-Stone Platinum Ring DIF Flawless $70,000.00 6.26 Ct. Round Cut Diamond Engagement Ring w/ Round Pave H,VS2 Platinum 950 $68,960.00 6.26 Ct. Round Cut Diamond Engagement Ring w/ Round Pave Setting H,VS2 Platinum $68,960.00 9.74 E SI2 ROUND CUT DIAMOND 3 STONE ENGAGEMENT RING PLATINUM $64,950.00 9.74 Ct E SI2 ROUND CUT 3 STONE DIAMOND PLATINUM RING $64,950.00 5.26 Ct Asscher Cut Diamond Engagement Ring w/ Round Cut Pave H,VS1 EGL Platinum $61,680.00 5.26 Ct Asscher Cut Diamond Engagement Platinum Ring w/ Round Cut Pave H,VS1 EGL $61,680.00 5.26 Ct Asscher Cut Diamond Engagement Ring w/ Round Cut Pave H,VS1 EGL Platinum $61,680.00 5.26 Ct. Asscher Cut Diamond Engagement Ring w/ Round Pave H,VS1 EGL Platinum $61,680.00 5.31 Ct. Asscher Cut w/ Round Cut Dual Halo Diamond Ring H,VS1 EGL Platinum $60,885.00 5.31Ct Asscher Cut w/ Round Dual Halo Diamond Engagement Ring H,VS1 EGL Platinum $60,885.00 5.31Ct Asscher Cut w/ Dual Halo Round Diamond Engagement Platinum Ring H,VS1 EGL $60,885.00 6.52 Ct Cushion, Princess & Round Cut Diamond Engagement Platinum Ring I,VS2 EGL $60,875.00 5.19 Ct. Asscher Cut w/ Round Cut One Row Halo Diamond Ring H,VS1 EGL Platinum $60,555.00 4.91 Ct Asscher & Round Diamond Ring H,VS1 EGL Platinum $60,285.00 6.23 Ct. Cushion Cut w/ Halo of Round Cut Diamond Engagement Plat Ring EGL I,VS2 $60,255.00 6.03 Ct Cushion & Round Diamond GIA I,VS2 Platinum Ring $60,255.00 6.03 Ct Cushion & Round Diamond GIA I,VS2 Platinum Ring $60,255.00 7.19 Ct. Round Cut Diamond Engagement Set Platinum $59,150.00 7.19 Ct. Round Cut Diamond Engagement Platinum Ring EGL $58,995.00 4.39 Ct. Round Cut Diamond Engagement Ring Platinum $58,650.00 Tiffany & Co Platinum Round Diamond Solitaire Engagement Ring GIA 2.22 ct F VVS2 $58,000.00 7.22Ct Canary Fancy Round Cut Diamond Engagement Ring $57,775.00 3.31ct Round Brilliant Cut Diamond Engagement Ring By Van Cleef & Arpels $55,995.00 5.42 Ct. Round Cut Diamond Engagement Set Platinum $54,880.00 5.37 Ct. Asscher Cut Micro Pave Round Diamond Platinum Engagement Ring H,VS1 EGL $54,680.00 5.37 Ct. Asscher Cut w/ Round Cut Micro Pave Diamond Ring H,VS1 EGL Platinum 950 $54,680.00 5.37 Ct. Asscher Cut Micro Pave Round Diamond Engagement Ring H,VS1 EGL Platinum $54,680.00 5.36 Ct Asscher Cut,Trapezoid & Round Diamond Engagement Ring EGL H,VS1 Platinum $54,140.00 7.50 ct Excellent Cut Round F-SI1 Diamond Platinum Classic Solitaire Ring 5.3gm $53,956.00 5.19 Ct. Asscher Cut w/ Round Cut Diamond Bridal Ring Set EGL H,VS1 Platinum $53,675.00 5.08 Ct. Round Cut Diamond Engagement Set Platinum 950 $53,080.00 4.87 Ct Asscher Cut, Princess & Round Diamond Engagement Platinum Ring H,VS1 EGL $52,790.00 4.87 Ct Asscher Cut, Princess & Round Diamond Engagement Ring H,VS1 EGL Platinum $52,790.00 4.76 Ct. Cushion Cut w/ Round Cut Micro Pave Diamond Ring I,VVS1 GIA Platinum $51,980.00 4.76 Ct Cushion Cut Micro Pave Round Diamond Engagement Ring I,VVS1 GIA Platinum $51,980.00 4.65Ct Cushion Cut Diamond Engagement Ring w/ Round Cut Pave I,VVS1 GIA Platinum $51,680.00 4.65 Ct. Cushion Cut Diamond Engagement Ring w/ Round Pave I,VVS1 GIA Platinum $51,680.00 4.65 Ct. Cushion Cut Diamond Engagement Ring w/ Round Pave I,VVS1 GIA Platinum $51,680.00 4.50Ct Cushion Cut & Round Pave Diamond Halo Engagement Ring Platinum I,VVS1 GIA $51,375.00 4.58 Ct. Cushion Cut w/ Round Cut Diamond Bridal Ring Set GIA I,VVS1 Platinum $50,975.00 4.79Ct Cushion, Princess & Round Cut Diamond Engagement Platinum Ring H,VVS1 EGL $50,905.00 4.50Ct Cushion Cut w/ Round Cut Halo Diamond Engagement Ring I,VVS1 GIA Platinum $50,785.00 4.50Ct.Cushion Cut w/ Round Cut Halo Diamond Engagement Ring I,VVS1 GIA Platinum $50,785.00 4.50Ct Cushion Cut w/ Round Cut Halo Diamond Engagement Ring I,VVS1 GIA Platinum $50,785.00 Diamond Bridal Engagement Ring 4.12 Ct Fancy Canary Round Cut Platinum GIA $50,739.66 4.58 Ct. Cushion Cut w/ Round Cut One Row Halo Diamond Ring H,VVS1 EGL Platinum $50,555.00 4.35 Ct. Cushion Cut Halo Round Pave Diamond Engagement Ring I,VVS1 GIA Platinum $50,285.00 4.35 Ct Cushion Cut Halo Round Pave Diamond Engagement Ring I,VVS1 GIA Platinum $50,285.00 4.35 Ct. Cushion Cut Halo Round Pave Diamond Engagement Ring I,VVS1 GIA Platinum $50,285.00 3.90 Ct Cushion Cut Micro Pave Round Diamond Engagement Ring I,VVS1 GIA Platinum $50,165.00 3.90Ct Cushion Cut Round Micro Pave Diamond Platinum Engagement Ring I,VVS1 GIA $50,165.00 4.26 Ct Cushion Cut,Princess & Round Diamond Engagement Platinum Ring I,VVS1 GIA $50,090.00 4.26 Ct Cushion Cut,Princess & Round Diamond Engagement Ring I,VVS1 GIA Platinum $50,090.00 Certified 5.21ct Round E-VS1 Ideal Diamond Platinum Classic Solitaire Ring 5.3gm $49,825.00 Category: Diamond Solitaire
