Gems, Jewelry, and Precious Metals
Showing 1930 products
![[Pre-owned] PT900 PARAIBA TOURMALINE RING Brazilian Paraiba Tourmaline Ring PT0.509ct D0.67ct CGL Identification/Analysis Report 9.1g #11](http://koufuku.jp/cdn/shop/files/2000000019284_3.jpg?v=1771658188&width=480)
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![[Pre-owned] K18YG SAPPHIRE RING S0.70ct D0.05ct 11.6g #12.5](http://koufuku.jp/cdn/shop/files/2000000131542_2.jpg?v=1771658254&width=480)
![[Pre-owned] K18/PT900 GARNET RING D0.20 8.9g #13](http://koufuku.jp/cdn/shop/files/2000000131573_2.jpg?v=1771658255&width=480)
![[Pre-owned] K18YG RUBY RING R0.25ct D0.09ct 5.8g #11](http://koufuku.jp/cdn/shop/files/2000000131511_2.jpg?v=1771658255&width=480)
![[Pre-owned] K18YG SAPPHIRE RING S2.50ct D0.72ct 7.8g #9](http://koufuku.jp/cdn/shop/files/2000000131641_2.jpg?v=1771658255&width=480)
![[Pre-owned] K18WG Emerald Ring E2.218ct D0.86ct 6.4g #14](http://koufuku.jp/cdn/shop/files/2000000042800_2.jpg?v=1771658257&width=480)
![[Pre-owned] K18YG RUBY RING R0.31ct D0.13ct 5.1g #11](http://koufuku.jp/cdn/shop/files/2000000116464_2.jpg?v=1771658257&width=480)
![[Pre-owned] K18YG DIAMOND RING D1.11ct 5.4g #10](http://koufuku.jp/cdn/shop/files/2000000028545_2.jpg?v=1771658277&width=480)
![[Pre-owned] K18YG SOUTH SEA PEARL RING White Pearl Ring P12.4mm D2.01ct 10.8g #9.5](http://koufuku.jp/cdn/shop/files/2000000093390_2.jpg?v=1771658298&width=480)
![[Pre-owned] SV BAROQUE PEARL NECKLACE 10-12mm 88g](http://koufuku.jp/cdn/shop/files/2000000131917_2.jpg?v=1771658298&width=480)
![[Used] KARATI K18WG NECKLACE Necklace 25.1g ONE PRICE](http://koufuku.jp/cdn/shop/files/2000000126883_2.jpg?v=1771658298&width=480)
![[Pre-owned] K18WG JADEITE RING J12.11ct D0.04ct 7.3g #16](http://koufuku.jp/cdn/shop/files/2000000040035_2.jpg?v=1771665041&width=480)
![[Pre-owned] K18YG PERIDOT RING P2.00ct 4.3g #16.5](http://koufuku.jp/cdn/shop/files/2000000081427_2.jpg?v=1771665040&width=480)
![[Used] K18YG DIAMOND Diamond Pendant Necklace UNOAERRE 17.2g](http://koufuku.jp/cdn/shop/files/2000000114361_2.jpg?v=1771665041&width=480)
![[Pre-owned] K18YG SAPPHIRE RING S1.03ct D0.73ct 7.4g #11](http://koufuku.jp/cdn/shop/files/2000000035505_2.jpg?v=1771665041&width=480)
![[Pre-owned] PT900 JADEITE RING 4.15ct / Diamond 0.69ct, 9.0g, Size 16](http://koufuku.jp/cdn/shop/files/2000000095110_2.jpg?v=1771665040&width=480)
![[Pre-owned] K18WG EMERALD RING E2.696ct D0.49ct 4.3g #13.5](http://koufuku.jp/cdn/shop/files/2000000050515_2.jpg?v=1771665041&width=480)
![[Pre-owned] K18YG RUBY RING R0.73ct D1.46ct 8.8g #10.5](http://koufuku.jp/cdn/shop/files/2000000040103_2.jpg?v=1771665041&width=480)
![[Pre-owned] PT900 RUBY RING Ruby & Diamond Ring R0.88ct D1.70ct 8.8g #11](http://koufuku.jp/cdn/shop/files/2000000094977_2.jpg?v=1771665041&width=480)
![[Pre-owned] K18YG/PT900 RUBY RING D0.22ct 4.1g #12](http://koufuku.jp/cdn/shop/files/2000000099361_2.jpg?v=1771665041&width=480)
![[Used] PT900 JADEITE RING J5.347ct D0.28ct with NGL certificate 6.6g #11](http://koufuku.jp/cdn/shop/files/2000000017310_3.jpg?v=1771665041&width=480)
![[Pre-owned] PT900 DIAMOND RING 0.475ct F Color VS1 Clarity GOOD Cut, CGL Sorting, 4.6g, Size 11](http://koufuku.jp/cdn/shop/files/2000000018461_3.jpg?v=1771665041&width=480)
![[Pre-owned] PT900 DIAMOND RING 1.007ct F Color I1 Clarity Good Cut D0.59ct 6.0g #10](http://koufuku.jp/cdn/shop/files/2000000014777_2.jpg?v=1771665041&width=480)
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![[Pre-owned] K18WG/YG/PG Prehnite Ring, 11.18ct, S0.95ct, D0.85ct, 14.4g, Size #14](http://koufuku.jp/cdn/shop/files/2000000091662_2.jpg?v=1771665042&width=480)
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KOUFUKU is an e-commerce site that offers a wide range of products, including jewelry, precious metals, designer bags, designer watches, designer apparel, and tableware. In addition to retail sales, we also provide purchase services.
![[Pre-owned] MITSUKOSHI K18YG Ruby & Diamond Ring R0.79ct D0.82ct 7.8g #12.5](http://koufuku.jp/cdn/shop/files/2000000145907_2.jpg?v=1788151913&width=480)
![[Used] PT900 NO HEAT SAPPHIRE RING Sri Lankan Unheated Sapphire Ring S5.40ct D1.19ct GIA Certificate 10.4g #11.5](http://koufuku.jp/cdn/shop/files/2000000133799_3.jpg?v=1777881348&width=480)
![Used] K18YG ENAMEL PENDANT NECKLACE 13.4g](http://koufuku.jp/cdn/shop/files/2000000134116_2.jpg?v=1778489330&width=480)