Showing 139 products
![[Used] K18YG DIAMOND RING 0.339ct D Color VS1 Class Very Good Cut CGL Sorting 2.2g #12](http://koufuku.jp/cdn/shop/files/2000000027494_2.jpg?v=1766801414&width=480)
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![[Pre-owned] PT900 SAPPHIRE Ring, S1.02ct, D0.10ct, GRJ Sorting, 5.8g, #9](http://koufuku.jp/cdn/shop/files/2000000124995_3.jpg?v=1766801414&width=480)
![[Pre-owned] K18WG STAR SAPPHIRE Star Sapphire Ring, SS7.71ct, D0.36ct, 6.2g, #12.5](http://koufuku.jp/cdn/shop/files/2000000050348_2.jpg?v=1766801414&width=480)
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![[Pre-owned] PT900 SAPPHIRE Sapphire Ring, S2.564ct, D0.86ct, CGL Certificate, 15.0g, #13](http://koufuku.jp/cdn/shop/files/2000000016597_2.jpg?v=1766801414&width=480)
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![[Used] K18WG SAPPHIRE PENDANT NECKLACE Color Sapphire Pendant Necklace S10.80ct D0.12ct Sorting 11.0g](http://koufuku.jp/cdn/shop/files/2000000106946_2.jpg?v=1766801414&width=480)
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![[Pre-owned] K18WG BLACK OPAL Black Opal Ring, BO 1.72ct, D 0.17ct, 3.6g](http://koufuku.jp/cdn/shop/files/2000000036595_2.jpg?v=1766801414&width=480)
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![[Used] PT850 Emerald Ring E0.56ct D0.58ct 4.9g #10.5](http://koufuku.jp/cdn/shop/files/2000000126081_2.jpg?v=1766801414&width=480)
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![[Used] K18WG EMERALD RING with emeralds E2.23ct D0.53ct 4.8g #13.5](http://koufuku.jp/cdn/shop/files/2000000041827_2.jpg?v=1766801414&width=480)
![[Used] PT900 Emerald Ring, E0.93ct, D0.76ct, CGL Sorting, 5.9g, #13, Handmade](http://koufuku.jp/cdn/shop/files/2000000125916_3.jpg?v=1766801414&width=480)
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SHOW YAMAGATA
Pre-owned SHOW YAMAGATA K18WG DIAMOND Ring, D0.25ct, 9.9g, Certificate of A[...]
$1,734.00
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![[Used] PT900 RUBY RING Ruby ring R0.56ct D0.08c t4.9g #11](http://koufuku.jp/cdn/shop/files/2000000117423_2.jpg?v=1766221258&width=480)
![[Used] K18WG DIAMOND Diamond Ring D1.95ct 7.1g #12](http://koufuku.jp/cdn/shop/files/2000000039015_2.jpg?v=1766221258&width=480)
![[Used] PT900 BLACK OPAL Black Opal Ring, BO 3.45ct, D 0.62ct, 4.7g, #16.5](http://koufuku.jp/cdn/shop/files/2000000018195_2.jpg?v=1766219128&width=480)
![[Pre-owned] K18YG/PT900 White Opal Ring, OP 1.09ct, D 0.28ct, 7.7g, #14](http://koufuku.jp/cdn/shop/files/2000000037905_2.jpg?v=1766219054&width=480)
![[Used] PT900 DIAMOND Ring D0.27ct 9.1g #19](http://koufuku.jp/cdn/shop/files/2000000007199_2.jpg?v=1766219043&width=480)
![[Used] PT900 SPODUMENE Kunzite Ring 4.36ct D0.51ct 11.7g #14](http://koufuku.jp/cdn/shop/files/2000000106137_2.jpg?v=1766219023&width=480)
![[Pre-owned] K18WG SAPPHIRE Sapphire Ring, S1.55ct, D0.47ct, 3.1g, #13.5](http://koufuku.jp/cdn/shop/files/2000000045269_2.jpg?v=1766219022&width=480)
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![[Used] PT900 MEXICO OPAL Mexican Opal Ring, MO 6.27ct, D 1.35ct, 15.0g, #15](http://koufuku.jp/cdn/shop/files/2000000024004_2.jpg?v=1766219023&width=480)
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![[Pre-owned] PT900 TOURMALINE Red Tourmaline (Rubellite) Ring, 1.64ct, D0.52ct, GRJ Sorting, 12.4g, #12.5](http://koufuku.jp/cdn/shop/files/2000000049632_3.jpg?v=1765877430&width=480)
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Recommended Items![[Used] PT900 NO HEAT SAPPHIRE RING Sri Lankan Unheated Sapphire Ring S5.40ct D1.19ct GIA Certificate 10.4g #11.5](http://koufuku.jp/cdn/shop/files/2000000133799_3.jpg?v=1777881348&width=480)
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![Used] K18YG ENAMEL PENDANT NECKLACE 13.4g](http://koufuku.jp/cdn/shop/files/2000000134116_2.jpg?v=1778489330&width=480)
![[Used] PT1000/PT900 BLACK OPAL NECKLACE Black Opal Pendant Necklace BO7.57ct D1.34ct 10.7g](http://koufuku.jp/cdn/shop/files/2000000112718_2.jpg?v=1771816794&width=480)
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