Showing 1787 products
![[Pre-owned] PT900 SAPPHIRE RING Sri Lankan Sapphire Ring S7.75ct D1.63ct GIA Report 12.5g #9](http://koufuku.jp/cdn/shop/files/2000000020006_3.jpg?v=1768444829&width=480)
![[Used] PT900 SAPPHIRE RING Sri Lankan Unheated Sapphire Ring S2.56ct D0.11ct GIA Certificate 6.4g #16](http://koufuku.jp/cdn/shop/files/2000000072050_4.jpg?v=1759988719&width=480)
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![[Pre-owned] PT900 SAPPHIRE RING Sri Lankan Sapphire Ring S14.33ct D2.08ct GRS Certified 11.7g #10](http://koufuku.jp/cdn/shop/files/2000000070476_2.jpg?v=1768444829&width=480)
![[Pre-owned] PT900 SAPPHIRE RING Sri Lankan Sapphire Ring S4.41ct D2.11ct GIA Certified 15.6g #19.5](http://koufuku.jp/cdn/shop/files/2000000018386_3.jpg?v=1768444671&width=480)
![[Pre-owned] PT900 SAPPHIRE RING Sri Lankan Sapphire Ring S4.53ct D1.00ct GRS/Certificate 8.1g #13](http://koufuku.jp/cdn/shop/files/2000000090719_4.jpg?v=1768808621&width=480)
![[Pre-owned] PT900 SAPPHIRE RING Sri Lankan Sapphire Ring S4.95ct D1.51ct with GIA Report, 11.4g, Size 14.5](http://koufuku.jp/cdn/shop/files/2000000068312_3.jpg?v=1785995024&width=480)
![[Pre-owned] PT900 SAPPHIRE RING Sri Lankan Sapphire Ring S5.30ct D0.82ct, with GIA Report and CGL Sorting, 9.9g, Size 19](http://koufuku.jp/cdn/shop/files/2000000126166_4.jpg?v=1768808641&width=480)
![[Pre-owned] PT900 SAPPHIRE RING Madagascar Sapphire Ring S8.11ct D3.11ct GIA Certificate 18.7g #13](http://koufuku.jp/cdn/shop/files/2000000072784_3.jpg?v=1768808621&width=480)
![[Pre-owned] PT900 SAPPHIRE RING S2.57ct D1.51ct 14.3g #15](http://koufuku.jp/cdn/shop/files/2000000071954_2.jpg?v=1768882396&width=480)
![[Pre-owned] PT900 SAPPHIRE RUBY Ring S0.73ct R0.40ct D0.247ct 5.5g #12](http://koufuku.jp/cdn/shop/files/2000000021980_2.jpg?v=1752392527&width=480)
![[Pre-owned] PT900 SAPPHIRE Ring S0.97ct D0.45ct 4.4g #11](http://koufuku.jp/cdn/shop/files/71992_01.jpg?v=1743141901&width=480)
![[Pre-owned] PT900 SAPPHIRE Ring S2.10ct D0.40ct 6.5g #12](http://koufuku.jp/cdn/shop/files/2000000000275_2.jpg?v=1744858472&width=480)
![[Pre-owned] PT900 SAPPHIRE Unheated Sapphire Ring S1.04ct D0.26ct 6g GIA Origin Report](http://koufuku.jp/cdn/shop/files/2000000021751_3.jpg?v=1743403204&width=480)
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![[Pre-owned] PT900 SAPPHIRE Sapphire Ring S1.94ct D0.06ct 12.4g #11](http://koufuku.jp/cdn/shop/files/2000000114279_2.jpg?v=1762397785&width=480)
![[Pre-owned] PT900 SAPPHIRE Sapphire Ring S0.37ct D0.30ct 3.4g #8](http://koufuku.jp/cdn/shop/files/2000000066516_2.jpg?v=1744892625&width=480)
![[Pre-owned] PT900 SAPPHIRE Sapphire Ring S0.45ct D0.17ct 3.8g #8.5](http://koufuku.jp/cdn/shop/files/2000000086149_2.jpg?v=1752392450&width=480)
![[Pre-owned] PT900 SAPPHIRE Sapphire Ring S1.12ct D0.28ct 9.2g #11.5](http://koufuku.jp/cdn/shop/files/2000000018485_2.jpg?v=1744889949&width=480)
![[Pre-owned] PT900 Sapphire Ring, S1.24ct D0.64ct, CGL Sorting, #14, 11.6g](http://koufuku.jp/cdn/shop/files/2000000049755_3.jpg?v=1753249894&width=480)
![[Pre-owned] PT900 SAPPHIRE Sapphire Ring S1.57ct D0.15ct 6.6g #10](http://koufuku.jp/cdn/shop/files/2000000026497_2.jpg?v=1765877331&width=480)
![[Pre-owned] PT900 Sapphire Ring, S2.564ct, D0.86ct, with CGL Appraisal, 15.0g, Size 13](http://koufuku.jp/cdn/shop/files/2000000016597_2.jpg?v=1766801414&width=480)
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KOUFUKU is an e-commerce site that offers a wide range of products, including jewelry, precious metals, designer bags, designer watches, designer apparel, and tableware. In addition to retail sales, we also provide purchase services.
![[Pre-owned] MITSUKOSHI K18YG Ruby & Diamond Ring R0.79ct D0.82ct 7.8g #12.5](http://koufuku.jp/cdn/shop/files/2000000145907_2.jpg?v=1788151913&width=480)
![[Used] PT900 NO HEAT SAPPHIRE RING Sri Lankan Unheated Sapphire Ring S5.40ct D1.19ct GIA Certificate 10.4g #11.5](http://koufuku.jp/cdn/shop/files/2000000133799_3.jpg?v=1777881348&width=480)
![Used] K18YG ENAMEL PENDANT NECKLACE 13.4g](http://koufuku.jp/cdn/shop/files/2000000134116_2.jpg?v=1778489330&width=480)