Gems, Jewelry and Precious Metals
Showing 1386 products
![[Pre-owned] MIKIMOTO K14YG Akoya Pearl Necklace, 5.0-5.5mm, 38.6g, One Price](http://koufuku.jp/cdn/shop/files/2000000043029_2.jpg?v=1762391176&width=480)
![[Pre-owned] K18WG JADEITEZ Jadeitez Ring, Jadeitez 1.70ct, Dadeitez 0.43ct, 3.5g, #16](http://koufuku.jp/cdn/shop/files/2000000040806_2.jpg?v=1762391177&width=480)
![[Pre-owned] 18K Yellow Gold Ruby Ring, R3.15ct, D0.67ct, 8.3g, #9](http://koufuku.jp/cdn/shop/files/2000000014210_2.jpg?v=1762391180&width=480)
![[Used] K18/PT900 Emerald Ring 3.0g #9](http://koufuku.jp/cdn/shop/files/2000000106250_2.jpg?v=1762391181&width=480)
![[Pre-owned] 18K Yellow Gold Emerald Ring, E1.054ct, D0.75ct, NGL Certificate, 4.2g, #12](http://koufuku.jp/cdn/shop/files/2000000069852_3.jpg?v=1762391181&width=480)
![[Pre-owned] K18WG Jadeite Jadeite Ring J2.633ct D0.60ct 5.5g #13](http://koufuku.jp/cdn/shop/files/2000000040738_2.jpg?v=1762391181&width=480)
![[Pre-owned] K18WG Jadeite Jadeite Ring J2.77ct D0.10ct 2.6g #13.5](http://koufuku.jp/cdn/shop/files/2000000036649_2.jpg?v=1762397785&width=480)
![[Used] PT900 SAPPHIRE Sapphire Ring, S1.94ct, D0.06ct, 12.4g, #11](http://koufuku.jp/cdn/shop/files/2000000114279_2.jpg?v=1762397785&width=480)
![[Pre-owned] 18K White Gold South Sea Pearl Ring, 11.2mm x 9.9mm, D0.08ct x 9.7g, #13](http://koufuku.jp/cdn/shop/files/2000000094717_2.jpg?v=1762397785&width=480)
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![[Used] K18WG Emerald Ring E1.885ct D1.14ct 7.0g #13](http://koufuku.jp/cdn/shop/files/2000000042312_2.jpg?v=1762397785&width=480)
![[Used] K18YG DIAMOND Ring D1.00ct 4.0g #11](http://koufuku.jp/cdn/shop/files/2000000053165_2.jpg?v=1762397785&width=480)
![[Pre-owned] 18K Yellow Gold Emerald Brooch/Pendant Necklace, E3.45ct, D0.19ct, 8.5g](http://koufuku.jp/cdn/shop/files/2000000106779_2.jpg?v=1762397785&width=480)
![[Used] 18K Yellow Gold Jadeite Necklace 15.8g](http://koufuku.jp/cdn/shop/files/2000000099538_2.jpg?v=1762397785&width=480)
![[Used] K18YG Emerald Ring 2.6g #12](http://koufuku.jp/cdn/shop/files/2000000040998_2.jpg?v=1762397786&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] K18YG Pink Sapphire Ring, PS1.10ct, D1.64ct, 7.3g, #12](http://koufuku.jp/cdn/shop/files/2000000042503_2.jpg?v=1762397786&width=480)
![[Used] PT850/PT900 Jadeite Jadeite Pendant Necklace J0.34ct D2.601ct 10.6g](http://koufuku.jp/cdn/shop/files/2000000005805_2.jpg?v=1762397785&width=480)
![[Pre-owned] K18WG BLACK OPAL Black Opal Ring, BO 0.90ct, D 0.15ct, 2.7g, #13](http://koufuku.jp/cdn/shop/files/2000000036861_2.jpg?v=1762397785&width=480)
![[Pre-owned] K18WG RUBY Ruby and Diamond Ring, R2.40ct, D0.33ct, 7.0g, #17](http://koufuku.jp/cdn/shop/files/2000000087269_2.jpg?v=1762397786&width=480)
![[Pre-owned] PT850 RUBY Ruby Pendant Necklace R0.62ct D0.67ct 10.5g](http://koufuku.jp/cdn/shop/files/2000000058016_2.jpg?v=1762397786&width=480)
![[Pre-owned] PT850/PT900 Emerald Pendant Necklace, E3.83ct, D1.32ct, 16.0g](http://koufuku.jp/cdn/shop/files/2000000074474_2.jpg?v=1762397786&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)
