Showing 1739 products
![[Pre-owned] K18/PT900 Emerald Ring, E1.62ct, D0.67ct, 10.1g, #10.5](http://koufuku.jp/cdn/shop/files/2000000005850_2.jpg?v=1752392528&width=480)
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![[Used] PT900 SAPPHIRE Sapphire Ring, S2.14ct, D0.28ct, 5.6g, #15](http://koufuku.jp/cdn/shop/files/2000000016467_2.jpg?v=1752392528&width=480)
![[Pre-owned] PT900 SAPPHIRE RUBY Sapphire and Ruby Ring, S 0.73ct, R 0.40ct, D 0.247ct, 5.5g, #12](http://koufuku.jp/cdn/shop/files/2000000021980_2.jpg?v=1752392527&width=480)
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![[Pre-owned] K18WG No Heat RUBY Unheated Ruby Ring, R0.94ct, D0.32ct, AIGS Pigeon Blood, 2.9g, #13](http://koufuku.jp/cdn/shop/files/2000000035970_3.jpg?v=1752392507&width=480)
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![[Pre-owned] 18K Yellow Gold Ruby Ring, R 0.25ct, D 0.07ct, 2.2g, #8.5](http://koufuku.jp/cdn/shop/files/2000000086033_2.jpg?v=1752392450&width=480)
![[Used] PT900 Diamond Ring D0.77ct D0.30ct 7.3g #13](http://koufuku.jp/cdn/shop/files/2000000086163_2.jpg?v=1752392450&width=480)
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![[Pre-owned] 18K Yellow Gold Sapphire Ring, S0.77ct, D0.64ct, 5.3g, #9.5](http://koufuku.jp/cdn/shop/files/2000000087832_2.jpg?v=1752392450&width=480)
![[Used] K18WG SAPPHIRE RING S1.33ct D0.97ct 3.7g #12.5](http://koufuku.jp/cdn/shop/files/2000000103624_2.jpg?v=1752392450&width=480)
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![[Used] PT900 SAPPHIRE Sapphire Ring, S0.45ct, D0.17ct, 3.8g, #8.5](http://koufuku.jp/cdn/shop/files/2000000086149_2.jpg?v=1752392450&width=480)
![[Used] PT900 ALEXANDRITE Ring, A 0.176ct, D 0.24ct, 3.9g, #12](http://koufuku.jp/cdn/shop/files/2000000085999_2.jpg?v=1752392450&width=480)
![[Pre-owned] K18WG SAPPHIRE Sapphire Ring 2.24ct D0.82ct 4.7g #14](http://koufuku.jp/cdn/shop/files/2000000030104_2.jpg?v=1752392450&width=480)
![[Used] PT900 Emerald Ring, E1.04ct, D0.45ct, 6.8g, #11.5](http://koufuku.jp/cdn/shop/files/2000000087856_2.jpg?v=1752392450&width=480)
![[Pre-owned] PT900 RUBELLITE TOURMALINE Rubellite Ring 3.51ct D0.21ct NGL Certificate 8.0g #9](http://koufuku.jp/cdn/shop/files/2000000087511_3.jpg?v=1752392450&width=480)
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![[Used] PT900 Jadeite Jadeite Ring 2.15ct D0.40ct CGL So 7.2g #12](http://koufuku.jp/cdn/shop/files/2000000087849_3.jpg?v=1752392450&width=480)
![[Used] PT900 Star Sapphire Ring 12.85ct D0.50ct 14.1g #12](http://koufuku.jp/cdn/shop/files/2000000087498_2.jpg?v=1752392450&width=480)
![[Used] PT900 BLACK OPAL Black Opal Ring, BO2.81, D1.30ct, 13.2g, #12](http://koufuku.jp/cdn/shop/files/2000000087481_2.jpg?v=1752392450&width=480)
![[Used] PT900 DIAMOND Princess Cut Diamond Ring D1.30ct 6.2g #10](http://koufuku.jp/cdn/shop/files/2000000085920_2.jpg?v=1752392450&width=480)
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![[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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