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![[Pre-owned] K18WG No Heat RUBY Unheated Ruby Ring, R0.94ct, D0.32ct, AIGS Pigeon Blood, 2.9g, #13](http://koufuku.jp/cdn/shop/files/2000000035970_3.jpg?v=1752392507&width=480)
![[Pre-owned] K18WG OPAL RING Opal Ring BO3.10ct D0.14ct 4.8g #13](http://koufuku.jp/cdn/shop/files/2000000036663_2.jpg?v=1768800609&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] K18WG OPAL RING Opal Ring OP 0.93ct D 0.12ct 3.4g #13.5](http://koufuku.jp/cdn/shop/files/2000000045191_2.jpg?v=1768800609&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)
