Showing 1591 products
![[Pre-owned] K18/K18WG DIAMOND Diamond Pendant Necklace D0.10ct 6.2g](http://koufuku.jp/cdn/shop/files/2000000009476_2.jpg?v=1765161778&width=480)
![[Pre-owned] K18/K18WG SAPPHIRE Sapphire Ring, S0.96ct, D0.45ct, 7.3g, #9](http://koufuku.jp/cdn/shop/files/2000000037394_2.jpg?v=1765161864&width=480)
![[Pre-owned] K18/PT850 RUBY Ruby Ring, R0.41ct, D0.18ct, 5.0g, #12](http://koufuku.jp/cdn/shop/files/2000000068473_2.jpg?v=1751698229&width=480)
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![[Pre-owned] K18/PT900 BLACK OPAL Black Opal Ring, BO2.37ct, D1.13ct, 10.2g, #9](http://koufuku.jp/cdn/shop/files/2000000058368_2.jpg?v=1763176059&width=480)
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![[Used] K18/PT900 DIAMOND RING Diamond Ring D1.01ct 9.8g #20](http://koufuku.jp/cdn/shop/files/2000000014203_2.jpg?v=1771665152&width=480)
![[Used] K18/PT900 DIAMOND Ring D0.40ct 7.0g #11.5](http://koufuku.jp/cdn/shop/files/2000000106625_2.jpg?v=1762391138&width=480)
![[Used] K18/PT900 DIAMOND Ring 0.35ct 3.1g #11](http://koufuku.jp/cdn/shop/files/2000000093017_2.jpg?v=1765877331&width=480)
![[Used] K18/PT900 DIAMOND Ring 0.378ct 5.40g #9](http://koufuku.jp/cdn/shop/files/2000000038957_2.jpg?v=1762391102&width=480)
![[Used] K18/PT900 DIAMOND Ring 0.397ct D0.43ct 4.0g #13](http://koufuku.jp/cdn/shop/files/2000000037646_2.jpg?v=1765877450&width=480)
![[Pre-owned] K18/PT900 Emerald Ring, Emerald 0.32ct, D0.12ct, with sorting, 4.8g, #11](http://koufuku.jp/cdn/shop/files/2000000007748_3.jpg?v=1766992784&width=480)
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![[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)
![[Used] K18/PT900 GARNET RING Garnet Ring D0.20 8.9g #13](http://koufuku.jp/cdn/shop/files/2000000131573_2.jpg?v=1771658255&width=480)
![[Pre-owned] K18/PT900 PEARL RING White Butterfly Pearl Set Ring P11.5mm 15.9g #12](http://koufuku.jp/cdn/shop/files/2000000038711_2.jpg?v=1769398106&width=480)
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![[Pre-owned] K18/PT900 SAPPHIRE RING Sapphire ring S1.80ct D0.16ct 13.0g #11.5](http://koufuku.jp/cdn/shop/files/2000000108568_2.jpg?v=1771665487&width=480)
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![[Used] K18/PT900 SPHENE RING Sphene Ring 2.33ct D0.25ct 10.9g #13](http://koufuku.jp/cdn/shop/files/2000000121918_2.jpg?v=1771814674&width=480)
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![[Used] K18/PT950 PAPARACIA SAPPHIRE NECKLACE Paparadscha Sapphire Pendant Necklace 1.60ct D0.19ct with Japan Germany Gemological Institute certificate 3.9g](http://koufuku.jp/cdn/shop/files/2000000074689_3.jpg?v=1765175629&width=480)
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![[Pre-owned] K18PG DIAMOND RING Diamond Belt Ring D0.40ct 8.4g #12.5](http://koufuku.jp/cdn/shop/files/2000000121895_2.jpg?v=1768185637&width=480)
![[Used] K18PG DIAMOND RING Diamond Full Eternity Ring D3.04ct 6.7g #12](http://koufuku.jp/cdn/shop/files/2000000069197_2.jpg?v=1768882395&width=480)
![[Pre-owned] K18PG DIAMOND RING Diamond Men's Eternity Ring D1.23ct 7.8g #28](http://koufuku.jp/cdn/shop/files/2000000044064_2.jpg?v=1771658188&width=480)
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Recommended Items![[Used] K18YG DIAMOND Ring D1.00 #11 Solitaire 3.9g](http://koufuku.jp/cdn/shop/files/2000000073590_8_04354e12-eb99-45f8-961b-74fbee55a5e7.jpg?v=1778745302&width=480)
![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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