Gems, Jewelry, and Precious Metals
Showing 1929 products
![[Pre-owned] Kunio Nakajima PT850/PT900 Pâte de verre Pendant Necklace, G0.37ct, 38.8g](http://koufuku.jp/cdn/shop/files/2000000017860_2.jpg?v=1762391121&width=480)
![[Pre-owned] K18/PT900 DIAMOND Ring D0.40ct 7.0g #11.5](http://koufuku.jp/cdn/shop/files/2000000106625_2.jpg?v=1762391138&width=480)
![[Pre-owned] PT900 White South Sea Pearl Ring 10.3mm D0.19ct 7.0g #14](http://koufuku.jp/cdn/shop/files/2000000106816_2.jpg?v=1762391138&width=480)
![[Pre-owned] K18YG Emerald Ring E0.77ct D0.81ct 7.1g #13](http://koufuku.jp/cdn/shop/files/2000000053134_2.jpg?v=1762391139&width=480)
![[Pre-owned] K18YG Ruby Ring D0.19ct 7.0g #13](http://koufuku.jp/cdn/shop/files/2000000026633_2.jpg?v=1762391138&width=480)
![[Pre-owned] K18YG Ruby Ring R0.43ct D0.18ct 5.1g #12](http://koufuku.jp/cdn/shop/files/2000000112503_2.jpg?v=1762391139&width=480)
![[Pre-owned] I-PRIMO PT950 DIAMOND Ring 0.264ct 3.0g](http://koufuku.jp/cdn/shop/files/DSC_1993_002eca84-383d-42f2-92f5-2330587db75f.jpg?v=1775180378&width=480)
![[Pre-owned] K18WG Emerald Ring, E2.50ct, D0.44ct, 4.3g, Size 13.5](http://koufuku.jp/cdn/shop/files/2000000045313_2.jpg?v=1762391139&width=480)
![[Pre-owned] K18WG Emerald Ring E2.10ct D0.16ct 2.8g #13](http://koufuku.jp/cdn/shop/files/2000000036298_2.jpg?v=1762391139&width=480)
![[Pre-owned] Dear Blossom SV/K18 Feather Design Ring 5.1g ONE PRICE #15.5](http://koufuku.jp/cdn/shop/files/2000000026671_2.jpg?v=1762391139&width=480)
![[Pre-owned] K18WG Emerald Ring, E1.00ct D0.30ct, 3.2g, Size 10.5](http://koufuku.jp/cdn/shop/files/2000000036441_2.jpg?v=1762391139&width=480)
![[Pre-owned] K18WG Pink Spinel Ring SP0.50ct D0.17ct 2.8g #13](http://koufuku.jp/cdn/shop/files/2000000115443_2.jpg?v=1762391139&width=480)
![[Pre-owned] PT900 Lavender Jadeite Ring, D0.60ct, 8.3g, Size 10.5](http://koufuku.jp/cdn/shop/files/2000000115726_2.jpg?v=1762391139&width=480)
![[Pre-owned] K18YG Ruby Ring R0.31ct D0.80ct 5.3g #11.5](http://koufuku.jp/cdn/shop/files/2000000106977_2.jpg?v=1762391139&width=480)
![[Pre-owned] K18YG AKOYA PEARL RING 6.9mm D0.48ct 5.9g](http://koufuku.jp/cdn/shop/files/2000000115146_2.jpg?v=1762391140&width=480)
![[Pre-owned] KABANA 18K Yellow Gold Turquoise Ring 16.5g Fixed Price 20](http://koufuku.jp/cdn/shop/files/2000000105222_2.jpg?v=1762391161&width=480)
![[Pre-owned] K18YG Emerald Ring DIA 7.6g #13](http://koufuku.jp/cdn/shop/files/2000000064086_2.jpg?v=1762391161&width=480)
![[Pre-owned] K18YG Ruby Ring R1.48ct D1.18ct 8.5g #11.5](http://koufuku.jp/cdn/shop/files/2000000115450_2.jpg?v=1762391162&width=480)
![[Used] BRINKHAUS 18K/PT DIAMOND RING Diamond Ring 11.4g #16 ONE PRICE](http://koufuku.jp/cdn/shop/files/2000000028026_2.jpg?v=1762391160&width=480)
![[Pre-owned] K18YG Ruby Ring, R2.80ct D0.11ct, with NGL Appraisal, 7.2g, Size #15](http://koufuku.jp/cdn/shop/files/DSC_1977.jpg?v=1775179861&width=480)
Sold Out
![[Pre-owned] K18YG Ruby Ring, R3.00ct D0.30ct, with NGL Appraisal, 7.8g, Size 14](http://koufuku.jp/cdn/shop/files/2000000115191_3.jpg?v=1762391160&width=480)
![[Pre-owned] K18WG Jadeite Ring J10.45ct D0.36ct 6.6g #13](http://koufuku.jp/cdn/shop/files/2000000034263_2.jpg?v=1762391162&width=480)
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)