Gems, Jewelry and Precious Metals
Showing 1707 products
![[Used] PT900 BLACK OPAL Black Opal Ring, BO 3.47ct, D 1.16ct, 10.3g, #12](http://koufuku.jp/cdn/shop/files/2000000094700_2.jpg?v=1763176025&width=480)
![[Pre-owned] K18WG Jadeite Jadeite Ring J4.65ct D0.15ct 3.6g #13](http://koufuku.jp/cdn/shop/files/2000000036397_2.jpg?v=1763176059&width=480)
![[Pre-owned] K18YG AMBER Amber Pendant Necklace with Insects, D0.18ct, 12.9g, N](http://koufuku.jp/cdn/shop/files/2000000074672_3.jpg?v=1763176220&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] PT900 SAPPHIRE Sapphire Ring, S0.986ct, D0.31ct, 5.9g, #14](http://koufuku.jp/cdn/shop/files/2000000090955_2.jpg?v=1763176059&width=480)
![[Used] PT900 OPAL Black Opal Ring, BO 3.74ct, D 0.14ct, 7.4g, #17](http://koufuku.jp/cdn/shop/files/2000000016795_2.jpg?v=1763176059&width=480)
![[Pre-owned] K18WG SAPPHIRE Sapphire Ring, S2.09ct, D0.584ct, 9.0g, #18](http://koufuku.jp/cdn/shop/files/2000000037899_2.jpg?v=1763176059&width=480)
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![[Pre-owned] PT950 BLACK OPAL Black Opal Ring, BO4.57ct, D2.74ct, 9.5g, #11.5](http://koufuku.jp/cdn/shop/files/2000000031125_2.jpg?v=1763176059&width=480)
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![[Used] K18WG NO HEAT RUBY RING Non-heated Ruby Ring R1.04ct D0.50ct AIGS Pigeon Blood Certificate 3.3g #13.5](http://koufuku.jp/cdn/shop/files/2000000036090_4.jpg?v=1764830276&width=480)
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![[Used] K18YG TOURMALINE Necklace 12.1g](http://koufuku.jp/cdn/shop/files/2000000111889_2.jpg?v=1764830276&width=480)
![[Pre-owned] 18K Yellow Gold Ruby Ring, R 0.65ct, D 0.33ct, 7.8g, #0.30ct](http://koufuku.jp/cdn/shop/files/2000000044439_2.jpg?v=1764830276&width=480)
![[Used] K18WG NO HEAT RUBY RING AIGS Pigeon Blood Certificate 1.03ct D0.29ct 1.9g #14](http://koufuku.jp/cdn/shop/files/2000000047867_4.jpg?v=1764830276&width=480)
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![[Pre-owned] 18K Yellow Gold Ruby Ring, R2.10ct, D1.00ct, 9.5g, #12](http://koufuku.jp/cdn/shop/files/DSC_3928.jpg?v=1769670706&width=480)
![[Used] K18WG RUBY Ruby ring R0.99ct D0.70ct AIGS non-heated identification book 2.8g #13.5](http://koufuku.jp/cdn/shop/files/2000000047881_4.jpg?v=1764830276&width=480)
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![[Pre-owned] Waltham Necklace, 18K Yellow Gold, Diamond Pendant Necklace, 25.6g, One Price](http://koufuku.jp/cdn/shop/files/2000000114354_2.jpg?v=1764830277&width=480)
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![[Pre-owned] 18K Yellow Gold South Sea Pearl Baroque Pearl Pendant Necklace, 11.8mm, 5.0g](http://koufuku.jp/cdn/shop/files/2000000099231_2.jpg?v=1764830276&width=480)
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![[Pre-owned] K18/K18WG DIAMOND Diamond Pendant Necklace Necklace D1.37ct 4.5g](http://koufuku.jp/cdn/shop/files/2000000113029_2.jpg?v=1764830276&width=480)
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![[Used] K18WG RUBY RING Ruby ring R0.54ct D0.03ct 3.0g #15.5](http://koufuku.jp/cdn/shop/files/2000000044361_2.jpg?v=1764830277&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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