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![[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] PT900 RUBY Ruby Ring R0.20ct D0.86ct 6.7g #11](http://koufuku.jp/cdn/shop/files/2000000011196_2.jpg?v=1746249798&width=480)
![[Used] TASAKI PT1000 Diamond Ring D0.782ct D0.36ct 4.4g #8.5](http://koufuku.jp/cdn/shop/files/2000000022154_2.jpg?v=1746178202&width=480)
![[Used] CHANEL PT950 Coco Crush Ring Diamond 5p 4.0g #12.5](http://koufuku.jp/cdn/shop/files/2000000016924_2.jpg?v=1746173448&width=480)
![[Used] K18YG/PT900 PEARL South Sea Baroque Pearl Ring 12.1mm D0.16ct 13.5g #14.5](http://koufuku.jp/cdn/shop/files/2000000071640_2.jpg?v=1746162159&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.