Gems, Jewelry and Precious Metals
Showing 1386 products
![[Pre-owned] 18K Yellow Gold Emerald and Diamond Pendant Necklace, 7.9g](http://koufuku.jp/cdn/shop/files/2000000115320_3.jpg?v=1766992797&width=480)
![[Pre-owned] 18K White Gold Colombian Emerald Ring, E1.05ct, D0.36ct, GRS 5.1g, #13.5](http://koufuku.jp/cdn/shop/files/2000000089621_3.jpg?v=1767585886&width=480)
![[Used] PT900 TOURMALINE Green Tourmaline Ring, T1.21ct, D0.75ct, 6.9g, #8](http://koufuku.jp/cdn/shop/files/2000000018218_2.jpg?v=1767585887&width=480)
![[Used] PT900 Emerald Ring, E2.39ct, D0.48ct, 6.9g, #14.5](http://koufuku.jp/cdn/shop/files/2000000029955_2.jpg?v=1767585888&width=480)
![[Pre-owned] PT900 Emerald Ring, E1.55ct, D0.90ct, Nihon Hokyo Sorting, 11.3g, #11.5](http://koufuku.jp/cdn/shop/files/2000000094069_3.jpg?v=1767585887&width=480)
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![[Used] PT900 Emerald Ring, E1.665ct, D0.93ct, Nihon Hokyo Sorting, 6.6g, #12](http://koufuku.jp/cdn/shop/files/2000000093864_2.jpg?v=1767585887&width=480)
![[Pre-owned] 18K Yellow Gold Emerald and Diamond Eternity Ring, E0.22ct, D0.31ct, 2.1g, #11](http://koufuku.jp/cdn/shop/files/2000000099675_2.jpg?v=1767585887&width=480)
![[Pre-owned] K18WG Emerald Ring E2.169ct D0.36ct 3.3g #13.5](http://koufuku.jp/cdn/shop/files/2000000094311_2.jpg?v=1767585886&width=480)
![[Used] PT900 GARNET Grossularite Garnet Ring G1.01ct D1.00ct 7.8g #16](http://koufuku.jp/cdn/shop/files/2000000015019_2.jpg?v=1767585887&width=480)
![[Used] PT900 TOPAZ Blue Topaz Ring, T6.56ct, D0.84ct, 11.2g, #13](http://koufuku.jp/cdn/shop/files/2000000069418_3.jpg?v=1767585887&width=480)
![[Used] PT900 Emerald Ring, E2.695ct, D0.34ct, 6.6g, #13](http://koufuku.jp/cdn/shop/files/2000000088754_3.jpg?v=1767585887&width=480)
![[Pre-owned] 18K Yellow Gold Ruby Ring, R0.90ct, D1.40ct, 4.8g, #12.5](http://koufuku.jp/cdn/shop/files/2000000044606_2.jpg?v=1767585888&width=480)
![[Pre-owned] K18WG Emerald Ring E1.43ct D0.80ct 6.7g #14.5](http://koufuku.jp/cdn/shop/files/2000000094687_2.jpg?v=1767585888&width=480)
![[Used] PT900 Emerald Ring E1.08ct D1.12ct 9.2g #13](http://koufuku.jp/cdn/shop/files/2000000014586_2.jpg?v=1767585887&width=480)
![[Used] PT900 SAPPHIRE Sapphire Ring, S1.44ct, D0.54ct, 6.5g, #14.5](http://koufuku.jp/cdn/shop/files/2000000028248_2.jpg?v=1767585888&width=480)
![[Used] PT900 Diamond Ring 0.402 D0.67ct 7.7g #16.5](http://koufuku.jp/cdn/shop/files/2000000012452_2.jpg?v=1767585887&width=480)
![[Pre-owned] 18K Yellow Gold Emerald and Ruby Ring, E0.45ct, R0.42ct, 6.3g, #10](http://koufuku.jp/cdn/shop/files/2000000070568_2.jpg?v=1767585888&width=480)
![[Used] PT900 Emerald Ring, E2.43ct, D0.72ct, 7.4g, #9](http://koufuku.jp/cdn/shop/files/2000000089683_2.jpg?v=1767585888&width=480)
![[Used] PT900 Emerald Ring E3.73ct D0.39ct 6.6g #12](http://koufuku.jp/cdn/shop/files/2000000015422_2.jpg?v=1767585887&width=480)
![[Pre-owned] PT900 Alexandrite Ring, A0.22ct, D0.39ct, with sorting, 5.0g, #12.5](http://koufuku.jp/cdn/shop/files/2000000017693_3.jpg?v=1767585888&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.
![[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)
