Gems, Jewelry and Precious Metals
Showing 1386 products
![[Used] K18WG Emerald Ring E1.72ct D0.71ct 4.8g #12](http://koufuku.jp/cdn/shop/files/2000000077246_2.jpg?v=1767585887&width=480)
![[Used] PT900 SAPPHIRE Sapphire Ring, S3.42ct, D0.59ct, 8.5g, #19.5](http://koufuku.jp/cdn/shop/files/2000000084817_2.jpg?v=1767585888&width=480)
![[Used] PT900 GARNET Ring D0.17ct 6.8g #11](http://koufuku.jp/cdn/shop/files/2000000088761_2.jpg?v=1767585958&width=480)
![[Pre-owned] PT900 RUBY Burmese Ruby Ring, R1.53ct, D0.55ct, GIA, 5.4g](http://koufuku.jp/cdn/shop/files/2000000015972_3.jpg?v=1767585957&width=480)
![[Used] PT900 Garnet Rhodolite Garnet Ring, G2.41ct, D0.11ct, CGL Sorting, 4.2g, #12.5](http://koufuku.jp/cdn/shop/files/2000000007397_3.jpg?v=1767585958&width=480)
![[Pre-owned] K18YG SAPPHIRE RING S1.18ct D0.71ct 7.0g #17](http://koufuku.jp/cdn/shop/files/2000000125633_2.jpg?v=1767585964&width=480)
![[Pre-owned] Mitsukoshi PT900 Jadeite Ring, Jadeite 3.74ct, Diameter 1.92ct, GRJ Sorting, 12.6g, #8](http://koufuku.jp/cdn/shop/files/2000000125442_3.jpg?v=1767585965&width=480)
![[Used] PT900 Jadeite Ring, Jadeite 9.14ct, Diameter 0.25ct, CGL Sorting, 11.2g, #30](http://koufuku.jp/cdn/shop/files/2000000009261_3.jpg?v=1767585964&width=480)
![[Used] PT900 Jadeite Ring, Jadeite 3.74ct, Diameter 1.21ct, GRJ Sorting, 9.6g, #12](http://koufuku.jp/cdn/shop/files/2000000000657_3.jpg?v=1767585964&width=480)
![[Used] PT900 Jadeite Ring, D0.795ct, 7.2g, #10](http://koufuku.jp/cdn/shop/files/2000000014524_2.jpg?v=1767585968&width=480)
![[Used] PT900 Jadeite Jadeite Ring, D0.72ct, CGL Sorting, 8.3g, #11](http://koufuku.jp/cdn/shop/files/2000000126180_3.jpg?v=1767585969&width=480)
![[Pre-owned] 18K Yellow Gold Ruby Ring, R 0.62ct, D 0.15ct, 7.7g, #21](http://koufuku.jp/cdn/shop/files/2000000124698_2.jpg?v=1767585969&width=480)
![[Used] PT900 Jadeite Jadeite Ring D0.69ct 7.6g #13](http://koufuku.jp/cdn/shop/files/2000000125961_2.jpg?v=1767585969&width=480)
![[Used] 18K Yellow Gold Ruby Ring, 9.2g, #14](http://koufuku.jp/cdn/shop/files/2000000126579_2.jpg?v=1767585974&width=480)
![[Pre-owned] K18 RUBY Ruby Ring R1.77ct D0.82ct 12.0g #13](http://koufuku.jp/cdn/shop/files/2000000124261_2.jpg?v=1767585974&width=480)
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.
![[Pre-owned] 18K Yellow Gold Ruby Ring, R 0.68ct, D 0.05ct, 5.9g, #12](http://koufuku.jp/cdn/shop/files/2000000127507_2.jpg?v=1767585980&width=480)
![[Pre-owned] 18K Yellow Gold Ruby Ring, 0.73ct R, 1.36ct D, 10.1g, #14.5](http://koufuku.jp/cdn/shop/files/2000000023700_2.jpg?v=1767585980&width=480)
![[Used] PT900 SAPPHIRE RING Sapphire Ring S2.57ct D1.51ct 14.3g #15](http://koufuku.jp/cdn/shop/files/2000000071954_2.jpg?v=1768882396&width=480)
![[Pre-owned] MIKIMOTO PT950 ALEXANDRITE RING, A 0.42ct, D 0.62ct, 6.1g, #15, ONE PRICE](http://koufuku.jp/cdn/shop/files/2000000123844_3.jpg?v=1768882396&width=480)
