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![[Pre-owned] K18WG RUBY RING Unheated Mozambique Ruby Ring R5.47ct D2.36ct 7.0g #11](http://koufuku.jp/cdn/shop/files/2000000034775_3.jpg?v=1765161863&width=480)
![[Pre-owned] K18WG RUBY RING Ruby Ring R0.81ct D1.50ct 9.7g](http://koufuku.jp/cdn/shop/files/2000000122373_2.jpg?v=1771053915&width=480)
![[Pre-owned] K18WG RUBY RING Ruby Ring R0.94ct D1.19ct 4.6g #13.5](http://koufuku.jp/cdn/shop/files/2000000040677_2.jpg?v=1768808719&width=480)
![[Used] K18WG RUBY Ruby Ring R0.68ct D0.33ct 2.9g #14](http://koufuku.jp/cdn/shop/files/69036_01_c42127e3-11c8-40b2-8fad-527280ba9a89.jpg?v=1743141669&width=480)
![[Used] K18WG RUBY Ruby Ring R1.03ct D0.11 Pigeon Blood AIGS Certificate 2.2g](http://koufuku.jp/cdn/shop/files/2000000035895_3.jpg?v=1740381216&width=480)
![[Pre-owned] K18WG RUBY Ruby Pendant Necklace R0.51ct D0.10ct 3.0g](http://koufuku.jp/cdn/shop/files/2000000074368_2.jpg?v=1765175628&width=480)
![[Used] K18WG RUBY Ruby ring R0.99ct D0.70ct AIGS non-heated identification book 2.8g #13.5](http://koufuku.jp/cdn/shop/files/2000000047881_4.jpg?v=1764830276&width=480)
![[Pre-owned] K18WG RUBY Ruby Ring, R1.16ct, D0.15ct, 2.6g, #13.5](http://koufuku.jp/cdn/shop/files/2000000035987_2.jpg?v=1764830303&width=480)
![[Used] K18WG RUBY Ruby Ring R2.45ct D0.76ct Japan Gemstone Association Sorting 4.9g #12.5](http://koufuku.jp/cdn/shop/files/2000000071275_8.jpg?v=1748238748&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] K18WG RUBY Ruby Ring Mystery Setting R5.30ct D1.10ct 11.6g #12](http://koufuku.jp/cdn/shop/files/2000000084435_2.jpg?v=1745911148&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)
