Gems, Jewelry and Precious Metals
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![[Used] JEUNET K18WG SAPPHIRE DIAMOND RING S1.16ct D0.46ct 12.8g #13](http://koufuku.jp/cdn/shop/files/2000000134796_2.jpg?v=1779430650&width=480)
![[Used] K18YG DIAMOND RING D1.70ct 4.4g #11](http://koufuku.jp/cdn/shop/files/2000000134437_2.jpg?v=1779431163&width=480)
![[Used] QUEEN (Heiwado Boeki) K18YG DIAMOND RING Diamond Ring 5.3 g #12 ONE PRICE](http://koufuku.jp/cdn/shop/files/2000000038377_2.jpg?v=1779431415&width=480)
![[Used] K18YG DIAMOND RING D1.00ct 5.0g #15.5](http://koufuku.jp/cdn/shop/files/2000000133393_2.jpg?v=1779431732&width=480)
![[Used] K18YG RUBY RING R0.41ct D0.56ct #8.5 5.3g](http://koufuku.jp/cdn/shop/files/2000000068541_2.jpg?v=1779432381&width=480)
![[Used] K18WG DIAMOND RING D0.22ct 2.6g #11.5](http://koufuku.jp/cdn/shop/files/2000000079233_3.jpg?v=1779435492&width=480)
![[Used] K18WG SAPPHIRE RING S0.75ct D0.05ct 2.6g #10](http://koufuku.jp/cdn/shop/files/2000000124452_2.jpg?v=1779436121&width=480)
![[Used] K18YG RUBY RING Ruby Ring R6.07ct D0.60ct 14.1g #15.5](http://koufuku.jp/cdn/shop/files/2000000134635_2.jpg?v=1779436533&width=480)
![[Used] K18WG SOUTH SEA PEARL RING White South Sea Pearl Ring 12.5mm D1.08ct 6.6g #14.5 Pearl Science Laboratory Aurora Venus](http://koufuku.jp/cdn/shop/files/2000000065991_2.jpg?v=1779437191&width=480)
![[Used] K18WG SOUTH SEA PEARL RING White South Sea Pearl Ring 14.0mm D0.06ct 11.5g #13](http://koufuku.jp/cdn/shop/files/2000000049786_3.jpg?v=1779437678&width=480)
![[Used] PT900 NO HEAT SAPPHIRE RING Sri Lankan Unheated Sapphire Ring S6.87ct D1.70ct GRS Certificate 13.3g](http://koufuku.jp/cdn/shop/files/2000000082660_4.jpg?v=1782366996&width=480)
![[Used] K18YG BURMA NO HEAT SAPPHIRE RING Burma No-Heat Sapphire Ring S19.93ct D GRS Certification 17.5g #11.5](http://koufuku.jp/cdn/shop/files/2000000118970_3.jpg?v=1782367030&width=480)
![[Used] K18WG MOZAMBIQUE NO HEAT RUBY RING Mozambique Ruby Ring R2.03ct D0.60ct GRS Certificate 7.3g #13.5](http://koufuku.jp/cdn/shop/files/2000000091464_3.jpg?v=1782367066&width=480)
![[Used] K18WG PARAIBA TOURMALINE RING Paraiba Tourmaline Ring PT3.50ct D3.66ct GRS Certificate 11.8g #13](http://koufuku.jp/cdn/shop/files/2000000095103_3.jpg?v=1782370911&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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KOUFUKU is an e-commerce site that handles a wide range of products, from jewelry and precious metals to brand bags, brand watches, brand apparel, and tableware. In addition to sales, we also offer a purchase service.