Showing 1288 products
![[Used] PT900 RUBY Ruby Ring, R0.50ct, D0.50ct, 4.8g, #9, GGS Sorting](http://koufuku.jp/cdn/shop/files/2000000022048_3.jpg?v=1750401687&width=480)
![[Used] PT900 RUBY Ruby Ring, R0.53ct, D0.07ct, 6.9g, #16](http://koufuku.jp/cdn/shop/files/2000000124735_2.jpg?v=1766219022&width=480)
![[Used] PT900 RUBY Ruby Ring, R0.600ct, D0.46ct, 11.9g, #11](http://koufuku.jp/cdn/shop/files/2000000115283_2.jpg?v=1762391102&width=480)
![[Used] PT900 RUBY Ruby Ring, R0.732ct, D0.56ct, 8.0g, #15](http://koufuku.jp/cdn/shop/files/2000000013091_2.jpg?v=1750401687&width=480)
![[Used] PT900 RUBY Ruby Ring R1.05ct D0.26ct 5.8g #13](http://koufuku.jp/cdn/shop/files/2000000072029_2.jpg?v=1746252756&width=480)
![[Used] PT900 RUBY Ruby Ring, R1.18ct, D0.41ct, 7.2g, #12](http://koufuku.jp/cdn/shop/files/2000000011608_2.jpg?v=1759735437&width=480)
![[Used] PT900 RUBY Ruby Ring R1.56ct D1.01ct 8.3g #13](http://koufuku.jp/cdn/shop/files/2000000017211_2.jpg?v=1759735437&width=480)
![[Used] PT900 RUBY Ruby Ring, R2.01ct, D1.35ct, 10.9g, #11.5](http://koufuku.jp/cdn/shop/files/2000000018744_2.jpg?v=1759735437&width=480)
![[Used] PT900 RUBY Ruby Ring in Invisible Setting, R0.47ct, D0.41ct, 8.4g, #12](http://koufuku.jp/cdn/shop/files/2000000075525_2.jpg?v=1760667250&width=480)
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![[Used] PT900 SAPPHIRE RING Sapphire/Ruby Ring S1.11ct R0.45ct D1.00ct 14.8g](http://koufuku.jp/cdn/shop/files/2000000123240_2.jpg?v=1768882394&width=480)
![[Used] PT900 SAPPHIRE RING, S2.00ct, D1.08ct, CGL Sorting, 9.5g, #15](http://koufuku.jp/cdn/shop/files/2000000019239_3.jpg?v=1768800609&width=480)
![[Used] PT900 SAPPHIRE RING Sapphire Ring S1.01ct D0.40ct 3.5g #11](http://koufuku.jp/cdn/shop/files/2000000007854_2.jpg?v=1768444652&width=480)
![[Used] PT900 SAPPHIRE RING, S1.27ct, D0.41ct, CGL Sorting, 6.6g, #11](http://koufuku.jp/cdn/shop/files/2000000090474_3.jpg?v=1768444838&width=480)
![[Used] PT900 SAPPHIRE RING Sapphire Ring S1.28ct D0.31ct 8.0g #10.5](http://koufuku.jp/cdn/shop/files/2000000133423_2.jpg?v=1771316660&width=480)
![[Pre-owned] PT900 SAPPHIRE RING S1.35ct D0.65ct NGL Certificate 13.0g #14](http://koufuku.jp/cdn/shop/files/2000000018959_2.jpg?v=1768800610&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.
![[Used] PT900 SAPPHIRE RING Sapphire ring S1.877ct D0.51ct 5.6g #10.5](http://koufuku.jp/cdn/shop/files/2000000095608_2.jpg?v=1768882395&width=480)
![[Used] PT900 SAPPHIRE RING Sapphire Ring S1.96ct D0.23ct 9.2g #10](http://koufuku.jp/cdn/shop/files/2000000019994_2.jpg?v=1765175629&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)
