Gems, Jewelry and Precious Metals
Showing 1707 products
![[Used] K18WG Emerald Ring E1.73ct 0.24ct 2.7g #11](http://koufuku.jp/cdn/shop/files/2000000036144_2.jpg?v=1768808620&width=480)
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![[Pre-owned] K18WG ALEXANDRITE RING Alexandrite Diamond Ring A1.00ct D0.80ct 5.6g #15](http://koufuku.jp/cdn/shop/files/2000000008844_2.jpg?v=1768808620&width=480)
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![[Used] K18YG Emerald Ring Emerald 0.48ct E0.30ct D0.28ct 4.5g #14](http://koufuku.jp/cdn/shop/files/2000000127521_2.jpg?v=1768808620&width=480)
![[Pre-owned] K18WG SAPPHIRE RING, S1.04ct, D0.25ct, CGL Sorting, 4.8g, #16](http://koufuku.jp/cdn/shop/files/2000000124919_3.jpg?v=1768808620&width=480)
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![[Pre-owned] PT900 Tourmaline Ring, Red Tourmaline (Rubellite), 2.77ct, D0.48ct, with sorting, 6.3g, #9](http://koufuku.jp/cdn/shop/files/2000000088983_3.jpg?v=1768808621&width=480)
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![[Pre-owned] Tsukasa Muramatsu PT900 Ruby Cabochon Cut Ruby Ring, R2.91ct, D0.36ct, 10.6g, #10](http://koufuku.jp/cdn/shop/files/2000000012742_2.jpg?v=1768808621&width=480)
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![[Pre-owned] K18WG SHIROCHO PEARL RING White Butterfly Pearl Ring, P12.6mm, D0.70ct, 8.3g, #13, Pearl Science Institute Aurora Venus, Certificate of Authenticity](http://koufuku.jp/cdn/shop/files/2000000065984_2.jpg?v=1768808620&width=480)
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![[Used] K18YG Akoya Pearl Ring, P6.4-8.4mm, D0.60ct, 25.2g](http://koufuku.jp/cdn/shop/files/2000000127293_2.jpg?v=1768808620&width=480)
![[Used] PT900 RUBY RING Ruby Ring R1.416ct D0.80ct 7.8g #6 CGL Sorting](http://koufuku.jp/cdn/shop/files/2000000021928_2.jpg?v=1768808621&width=480)
![[Used] PT900 RUBY RING Ruby Ring R7.75ct D1.26ct AIGS Vivid Pinkish Red Identification Book 14.7g #12](http://koufuku.jp/cdn/shop/files/2000000022284_3.jpg?v=1768808621&width=480)
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![[Used] K18WG Emerald Ring E6.85ct D0.23ct 6.1g #14](http://koufuku.jp/cdn/shop/files/2000000036496_2.jpg?v=1768808621&width=480)
![[Used] K18YG RUBY RING Ruby Ring R1.42ct D0.08ct 3.7g #11](http://koufuku.jp/cdn/shop/files/2000000115504_2.jpg?v=1768808621&width=480)
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![[Used] PT900 HAUYNITE RING H0.897ct D1.61ct 7.0g #13](http://koufuku.jp/cdn/shop/files/2000000105239_2.jpg?v=1768808621&width=480)
![[Pre-owned] PT900 SAPPHIRE RING, Sri Lankan Sapphire Ring, S4.53ct, D1.00ct, GRS, Certificate, 8.1g, #13](http://koufuku.jp/cdn/shop/files/2000000090719_4.jpg?v=1768808621&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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