Gems, Jewelry and Precious Metals
Showing 1386 products
![[Pre-owned] K18WG DIAMOND pendant necklace D1.08ct 6.3g](http://koufuku.jp/cdn/shop/files/2000000021317_2.jpg?v=1763176024&width=480)
![[Pre-owned] K18WG Emerald Ring, E2.18ct, D0.55ct, 4.4g, #13.5](http://koufuku.jp/cdn/shop/files/2000000044101_2.jpg?v=1763176025&width=480)
![[Used] PT900 OPAL Opal Ring, OP 2.89ct, D 0.63ct, 9.8g, #8](http://koufuku.jp/cdn/shop/files/2000000014968_2.jpg?v=1763176025&width=480)
![[Used] PT900 DIAMOND Ring 0.356ct D0.10 3g #11](http://koufuku.jp/cdn/shop/files/2000000112725_2.jpg?v=1763176025&width=480)
![[Used] PT900 BLACK OPAL Black Opal Ring, BO 3.47ct, D 1.16ct, 10.3g, #12](http://koufuku.jp/cdn/shop/files/2000000094700_2.jpg?v=1763176025&width=480)
![[Pre-owned] K18WG Jadeite Jadeite Ring J4.65ct D0.15ct 3.6g #13](http://koufuku.jp/cdn/shop/files/2000000036397_2.jpg?v=1763176059&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 AMBER Amber Pendant Necklace with Insects, D0.18ct, 12.9g, N](http://koufuku.jp/cdn/shop/files/2000000074672_3.jpg?v=1763176220&width=480)
![[Pre-owned] K18/PT900 BLACK OPAL Black Opal Ring, BO2.37ct, D1.13ct, 10.2g, #9](http://koufuku.jp/cdn/shop/files/2000000058368_2.jpg?v=1763176059&width=480)
![[Used] PT900 SAPPHIRE Sapphire Ring, S0.986ct, D0.31ct, 5.9g, #14](http://koufuku.jp/cdn/shop/files/2000000090955_2.jpg?v=1763176059&width=480)
![[Used] PT900 OPAL Black Opal Ring, BO 3.74ct, D 0.14ct, 7.4g, #17](http://koufuku.jp/cdn/shop/files/2000000016795_2.jpg?v=1763176059&width=480)
![[Pre-owned] PT900 Star Sapphire Ring, SS4.13ct, D0.98ct, 7.2g, #12](http://koufuku.jp/cdn/shop/files/2000000017914_2.jpg?v=1763176059&width=480)
![[Pre-owned] K18WG SAPPHIRE Sapphire Ring, S2.09ct, D0.584ct, 9.0g, #18](http://koufuku.jp/cdn/shop/files/2000000037899_2.jpg?v=1763176059&width=480)
![[Pre-owned] PT950 BLACK OPAL Black Opal Ring, BO4.57ct, D2.74ct, 9.5g, #11.5](http://koufuku.jp/cdn/shop/files/2000000031125_2.jpg?v=1763176059&width=480)
![[Used] K18YG TOURMALINE Necklace 12.1g](http://koufuku.jp/cdn/shop/files/2000000111889_2.jpg?v=1764830276&width=480)
![[Pre-owned] 18K Yellow Gold Ruby Ring, R 0.65ct, D 0.33ct, 7.8g, #0.30ct](http://koufuku.jp/cdn/shop/files/2000000044439_2.jpg?v=1764830276&width=480)
![[Pre-owned] 18K Yellow Gold Ruby Ring, R2.10ct, D1.00ct, 9.5g, #12](http://koufuku.jp/cdn/shop/files/DSC_3928.jpg?v=1769670706&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)
