Showing 1964 products
![[Pre-owned] K18YG RUBY RING Ruby/Diamond Invisible Setting Chain Ring R0.46ct D1.27ct 11.6g #13.5](http://koufuku.jp/cdn/shop/files/2000000040004_2.jpg?v=1768808620&width=480)
![[Pre-owned] K18WG Star Sapphire Ring SS14.00ct D0.89ct 8.9g #13.5](http://koufuku.jp/cdn/shop/files/2000000050355_2.jpg?v=1768808620&width=480)
![[Pre-owned] K18WG SOUTH SEA PEARL RING White Pearl Ring P13.6mm D0.54ct 8.6g #13](http://koufuku.jp/cdn/shop/files/2000000083780_2.jpg?v=1768808619&width=480)
![[Pre-owned] T&Co. Tiffany & Co. SV925 Atlas Ring 9.6g Size 10 ONE PRICE](http://koufuku.jp/cdn/shop/files/2000000121994_2.jpg?v=1768808620&width=480)
![[Pre-owned] K18WG Myanmar RUBY RING Myanmar (Burma) Ruby Ring R1.19ct D1.21ct with AIGS Appraisal Certificate, 5.4g, Size 13.5](http://koufuku.jp/cdn/shop/files/2000000070223_3.jpg?v=1768808620&width=480)
![[Pre-owned] K18WG ALEXANDRITE RING A2.67ct D1.94ct GRS Certified, 18.0g, Size 11](http://koufuku.jp/cdn/shop/files/2000000078502_3.jpg?v=1768806609&width=480)
![[Pre-owned] K18WG Jadeite Ring J2.71ct D0.38ct 4.6g #13](http://koufuku.jp/cdn/shop/files/2000000039909_2.jpg?v=1768806608&width=480)
![[Pre-owned] CHANEL K18WG DIAMOND RING 18.0g ONE PRICE](http://koufuku.jp/cdn/shop/files/2000000020297_2.jpg?v=1768806609&width=480)
![[Pre-owned] K18WG BLACK OPAL RING Black Opal 3.31ct Diamond 0.89ct 4.8g #13.5](http://koufuku.jp/cdn/shop/files/2000000034584_2.jpg?v=1768806608&width=480)
![[Pre-owned] K18YG GOLDEN PEARL RING P14.5mm D1.03ct 11.4g #12](http://koufuku.jp/cdn/shop/files/2000000058177_2.jpg?v=1768806608&width=480)
![[Pre-owned] K18WG SAPPHIRE RING S2.05ct D1.00ct 6.4g #12.5](http://koufuku.jp/cdn/shop/files/2000000040615_2.jpg?v=1768806609&width=480)
![[Pre-owned] K18YG/PT900 OPAL RING OP3.18ct D0.07ct 7.0g #12](http://koufuku.jp/cdn/shop/files/2000000037332_2.jpg?v=1768806608&width=480)
![[Pre-owned] K18YG Pearl Ring, 9.2mm Pearl, 1.13ct Diamond, 10.8g, Size 16](http://koufuku.jp/cdn/shop/files/2000000031095_2.jpg?v=1768806608&width=480)
![[Pre-owned] PT900 JADEITE RING, D0.30ct, with Japan Gem Society (JAG) sorting, 6.8g, Size 12](http://koufuku.jp/cdn/shop/files/2000000064123_3.jpg?v=1768806607&width=480)
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![[Pre-owned] K18WG JADEITE RING 5.73ct, Diamond 0.57ct, 5.6g, Size 13](http://koufuku.jp/cdn/shop/files/2000000034430_2.jpg?v=1768806607&width=480)
![[Pre-owned] K18WG BLACK OPAL RING BO1.5ct D0.49ct 5.3g](http://koufuku.jp/cdn/shop/files/2000000042114_2.jpg?v=1768806608&width=480)
![[Pre-owned] K18WG JADEITE RING 3.222ct Diamond 0.34ct 3.2g Size 13](http://koufuku.jp/cdn/shop/files/2000000039428_2.jpg?v=1768806608&width=480)
![[Pre-owned] PT900 BLACK OPAL RING BO5.00ct D0.17ct 10.4g #6](http://koufuku.jp/cdn/shop/files/2000000017594_2.jpg?v=1768806608&width=480)
![[Pre-owned] PT900 SAPPHIRE RING S1.84ct D0.53ct 8.3g #14](http://koufuku.jp/cdn/shop/files/DSC_1981.jpg?v=1775179919&width=480)
![[Pre-owned] K18WG JADEITE RING J1.848ct D0.45ct 3.3g #13](http://koufuku.jp/cdn/shop/files/DSC_2017_4fb5fad3-f7e6-487b-8003-3bd300b7ab85.jpg?v=1775188961&width=480)
![[Pre-owned] K18WG/Shell/Onyx DIAMOND RING D0.29ct D0.13ct 11.8g #12.5](http://koufuku.jp/cdn/shop/files/2000000041155_2.jpg?v=1768806608&width=480)
![[Pre-owned] K18WG BLACK OPAL RING Black Opal 1.67ct, 0.77ct, 0.50ct Diamond 0.20ct 11.0g #11.5](http://koufuku.jp/cdn/shop/files/2000000068831_2.jpg?v=1768806608&width=480)
![[Used] PT900 GARNET Ring G3.66ct D1.51ct 19.7g #16](http://koufuku.jp/cdn/shop/files/2000000014883_2.jpg?v=1768806608&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)