Gems, Jewelry and Precious Metals
Showing 1707 products
![[Pre-owned] K18YG RUBY Ruby & Diamond Ring R0.50ct D0.50ct 5.6g #10](http://koufuku.jp/cdn/shop/files/2000000105567_2.jpg?v=1762397786&width=480)
![[Used] PT900 Emerald Ring E1.293ct D0.71ct 5.7g #9](http://koufuku.jp/cdn/shop/files/2000000018256_2.jpg?v=1762397786&width=480)
![[Pre-owned] K18WG TOURMALINE Green Tourmaline Ring, T13.679ct, D1.30ct, 9.5g, #14](http://koufuku.jp/cdn/shop/files/2000000092706_2.jpg?v=1762397786&width=480)
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![[Pre-owned] K18WG RUBELLITE TOURMALINE Rubellite (Red Tourmaline) Ring, T6.65ct, D1.15ct, 7.6g, #13](http://koufuku.jp/cdn/shop/files/2000000115061_2.jpg?v=1762397786&width=480)
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![[Pre-owned] 18K Yellow Gold Ruby Ring, R 0.68ct, D 0.37ct, 7.4g, #12](http://koufuku.jp/cdn/shop/files/2000000108919_2.jpg?v=1762397786&width=480)
![[Pre-owned] K18YG SAPPHIRE Ring 1.00ct D0.11ct 5.8g #12](http://koufuku.jp/cdn/shop/files/2000000108933_2.jpg?v=1762397786&width=480)
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![[Used] 18KWG MEXICO OPAL Handmade Mexican Opal Ring, 8.0g #9](http://koufuku.jp/cdn/shop/files/2000000056975_2.jpg?v=1762397786&width=480)
![[Pre-owned] K18YG Akoya Pearl Ring, P7.0mm, D0.25ct, 5.0g, #10.5](http://koufuku.jp/cdn/shop/files/2000000106236_2.jpg?v=1762397786&width=480)
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![[Pre-owned] PT850/PT900 Diamond Pendant Necklace 0.519ct D0.094ct 7.5g](http://koufuku.jp/cdn/shop/files/2000000018492_2.jpg?v=1763175991&width=480)
![[Pre-owned] PT950 Pink Sapphire Ring, PS3.83ct, D0.80ct, Sorting 5.4g, #12](http://koufuku.jp/cdn/shop/files/2000000001265_3.jpg?v=1763175991&width=480)
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![[Pre-owned] K18WG Multi Ruby and Sapphire Pendant Necklace D0.45ct 6.5g](http://koufuku.jp/cdn/shop/files/2000000002705_3.jpg?v=1763176127&width=480)
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![[Pre-owned] 18K Yellow Gold Opal Pendant Necklace, D0.30ct, 12.9g](http://koufuku.jp/cdn/shop/files/2000000077093_3.jpg?v=1763176155&width=480)
![[Pre-owned] PT900 BLACK OPAL Black Opal Ring, BO 5.43ct, D 1.17ct, 10.4g, #14.5](http://koufuku.jp/cdn/shop/files/2000000019758_2.jpg?v=1763175991&width=480)
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![[Used] PT900 DIAMOND Ring D0.31ct 5.3g #12](http://koufuku.jp/cdn/shop/files/2000000009438_2.jpg?v=1763175991&width=480)
![[Used] PT900 Diamond Ring 3.019ct D0.45ct 6.5g #9](http://koufuku.jp/cdn/shop/files/DSC_2014_994554b8-725c-4e59-811f-f3f8329adec4.jpg?v=1775188842&width=480)
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![[Used] PT900 SAPPHIRE Sapphire Ring, S1.54ct, D0.677ct, GRJ Sorting, 10.7g, #15](http://koufuku.jp/cdn/shop/files/2000000018546_3.jpg?v=1763175990&width=480)
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![[Used] PT900 Jadeite pendant necklace, D1.70ct, 14.0g](http://koufuku.jp/cdn/shop/files/2000000057798_3.jpg?v=1763176295&width=480)
![[Used] PT900 SAPPHIRE Unheated Sapphire Ring, S4.18ct, D0.60ct, Sorting, 6.2g, #13](http://koufuku.jp/cdn/shop/files/2000000019468_3.jpg?v=1763175991&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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