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![[Used] K18YG RUBY Ruby Ring 6.6g #8](http://koufuku.jp/cdn/shop/files/2000000078335_2.jpg?v=1746252745&width=480)
![[Used] K18YG RUBY Ruby Ring R0.30ct D0.71ct 3.0g #9.5](http://koufuku.jp/cdn/shop/files/2000000073101_2.jpg?v=1753147302&width=480)
![[Used] K18YG RUBY Ruby Ring R0.50ct D0.22ct 3.7g #10.5](http://koufuku.jp/cdn/shop/files/2000000085166_2.jpg?v=1746252612&width=480)
![[Used] K18YG RUBY Ruby Ring R1.18ct D0.27ct 3.8g #5](http://koufuku.jp/cdn/shop/files/2000000043586_2.jpg?v=1746249845&width=480)
![[Used] K18YG RUBY Ruby Ring R1.30ct D0.90ct 7.0g #8](http://koufuku.jp/cdn/shop/files/2000000037875_2.jpg?v=1746252009&width=480)
![[Used] K18YG RUBY Ruby Ring R1.39ct D0.50ct 5.6g #11](http://koufuku.jp/cdn/shop/files/2000000077437_2.jpg?v=1746252099&width=480)
![[Used] K18YG RUBY Ruby Ring R1.81ct D1.40ct GRJ Sorting 15.1g #13](http://koufuku.jp/cdn/shop/files/2000000069715_8.jpg?v=1745911847&width=480)
![[Used] K18YG RUBY Ruby Ring R2.52ct D0.39ct 7.4g #13](http://koufuku.jp/cdn/shop/files/2000000071435_8.jpg?v=1749695656&width=480)
![[Used] K18YG SAPPHIRE ring 4g #13](http://koufuku.jp/cdn/shop/files/2000000066486_2.jpg?v=1753154502&width=480)
![[Used] K18YG SAPPHIRE Sapphire Ring S0.25ct D0.44ct 4.8g #11](http://koufuku.jp/cdn/shop/files/2000000071978_2.jpg?v=1750926454&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.