Showing 1288 products
![[Pre-owned] 18K White Gold Colombian Emerald Ring, E5.13ct, D1.10ct, GRS Certificate, 6.9g, #15](http://koufuku.jp/cdn/shop/files/2000000038797_3.jpg?v=1765159207&width=480)
![[Pre-owned] K18WG Jadeite Jadeite Ring, J6.47ct, D0.76ct, 6.1g, #14](http://koufuku.jp/cdn/shop/files/2000000044132_2.jpg?v=1762391101&width=480)
![[Pre-owned] K18WG KUNZITE Pendant Necklace Necklace K5.77ct D0.20ct 6.7g](http://koufuku.jp/cdn/shop/files/2000000113081_2.jpg?v=1764830276&width=480)
![[Used] K18WG OPAL Opal Ring 1.06ct 0.08ct 2.1g #13.5](http://koufuku.jp/cdn/shop/files/2000000045535_2.jpg?v=1746161481&width=480)
![[Used] K18WG PEARL Necklace P9.5mm D 2.5g](http://koufuku.jp/cdn/shop/files/2000000080291_2.jpg?v=1768197669&width=480)
![[Pre-owned] K18WG RUBELLITE TOURMALINE Rubellite (Red Tourmaline) Ring, T6.65ct, D1.15ct, 7.6g, #13](http://koufuku.jp/cdn/shop/files/2000000115061_2.jpg?v=1762397786&width=480)
![[Pre-owned] K18WG RUBY Unheated Ruby Necklace 1.05ct D0.52c "Pigeon Blood" AIGS Certificate 3.2g](http://koufuku.jp/cdn/shop/files/2000000050805_4.jpg?v=1764915891&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.
![[Pre-owned] 18K White Gold Ruby Bracelet, R7.78ct, D0.45ct, 16.1g, 16.5cm](http://koufuku.jp/cdn/shop/files/2000000093697_2.jpg?v=1762397785&width=480)
![[Pre-owned] K18WG RUBY Ruby Ring, R6.03ct, D3.63ct, GRS Certificate, 11.0g, #14](http://koufuku.jp/cdn/shop/files/2000000068954_3.jpg?v=1765159207&width=480)
![[Pre-owned] K18WG SAPPHIRE RING, S1.04ct, D0.25ct, CGL Sorting, 4.8g, #16](http://koufuku.jp/cdn/shop/files/2000000124919_3.jpg?v=1768808620&width=480)
![[Pre-owned] K18WG SAPPHIRE Sapphire Ring, S0.93ct, D0.17ct, 2.2g, #11.5](http://koufuku.jp/cdn/shop/files/2000000036618_2.jpg?v=1752392569&width=480)
![[Pre-owned] K18WG SAPPHIRE Sapphire Ring, S1.18ct, D0.58ct, 3.3g, #12.5](http://koufuku.jp/cdn/shop/files/2000000094342_2.jpg?v=1760678193&width=480)
![[Pre-owned] K18WG SAPPHIRE Sapphire Ring, S1.83ct, D0.29ct, 3.1g, #12](http://koufuku.jp/cdn/shop/files/2000000036700_2.jpg?v=1760678193&width=480)
![[Pre-owned] K18WG SAPPHIRE Sapphire Ring, S3.24ct, D0.51ct, 4.5g, #13](http://koufuku.jp/cdn/shop/files/2000000042930_2.jpg?v=1760667250&width=480)
![[Pre-owned] K18WG SOUTH SEA PEARL White South Sea Pearl Ring, 14mm, 10.3g, #12](http://koufuku.jp/cdn/shop/files/2000000038209_2.jpg?v=1765877331&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)
