Showing 1288 products
![[Used] PT900 Star Sapphire Ring 12.85ct D0.50ct 14.1g #12](http://koufuku.jp/cdn/shop/files/2000000087498_2.jpg?v=1752392450&width=480)
![[Pre-owned] PT900 Star Sapphire Ring, SS4.13ct, D0.98ct, 7.2g, #12](http://koufuku.jp/cdn/shop/files/2000000017914_2.jpg?v=1763176059&width=480)
![[Pre-owned] PT900 Star Sapphire Ring, 5.03ct, D0.57ct, 8.8g, #14.5](http://koufuku.jp/cdn/shop/files/2000000089102_2.jpg?v=1765175629&width=480)
![[Used] PT900 Tahiti Pearl Tahitian Pearl Ring 10.2mm D0.04ct 5.4g #11.5](http://koufuku.jp/cdn/shop/files/2000000008349_2.jpg?v=1746161717&width=480)
![[Used] PT900 Tahiti Pearl Ring 10.7mm D0.23ct 6.8g #8](http://koufuku.jp/cdn/shop/files/2000000026343_2.jpg?v=1746161613&width=480)
![[Used] PT900 Tahiti Pearl Tahitian Pearl Ring 11.2mm 5.9g #10 with Certificate of Authenticity](http://koufuku.jp/cdn/shop/files/2000000033556_3.jpg?v=1746161823&width=480)
![[Used] PT900 Tanzanite Ring, T24.61ct, D0.66ct, 15.0g, #13](http://koufuku.jp/cdn/shop/files/2000000020037_2.jpg?v=1762391162&width=480)
![[Used] PT900 topaz Imperial topaz ring, T0.77ct, D0.60ct, 6.2g, #14](http://koufuku.jp/cdn/shop/files/2000000003665_2.jpg?v=1749884385&width=480)
![[Used] PT900 TOPAZ Blue Topaz Ring, T6.56ct, D0.84ct, 11.2g, #13](http://koufuku.jp/cdn/shop/files/2000000069418_3.jpg?v=1767585887&width=480)
![[Used] PT900 TOURMALINE Green Tourmaline Ring, T8.98ct, D0.83ct, 15.4g](http://koufuku.jp/cdn/shop/files/2000000013893_2.jpg?v=1760667250&width=480)
![[Pre-owned] PT900 Tourmaline Ring, Red Tourmaline (Rubellite), 2.77ct, D0.48ct, with sorting, 6.3g, #9](http://koufuku.jp/cdn/shop/files/2000000088983_3.jpg?v=1768808621&width=480)
![[Used] PT900 TOURMALINE Green Tourmaline Ring, T3.20ct, D0.20ct, 9.4g, #14.5](http://koufuku.jp/cdn/shop/files/2000000106304_2.jpg?v=1762391176&width=480)
![[Used] PT900 TOURMALINE Green Tourmaline Ring, T1.21ct, D0.75ct, 6.9g, #8](http://koufuku.jp/cdn/shop/files/2000000018218_2.jpg?v=1767585887&width=480)
![[Pre-owned] PT900 TOURMALINE Green Tourmaline Ring, GT 5.72ct, D 0.23ct, 8.5g, #15.5](http://koufuku.jp/cdn/shop/files/2000000011219_2.jpg?v=1765877448&width=480)
![[Used] PT900 TOURMALINE Tourmaline Ring, T7.24ct, D0.22ct, 10.1g, #12](http://koufuku.jp/cdn/shop/files/2000000113920_2.jpg?v=1765175629&width=480)
![[Pre-owned] PT900 TOURMALINE Red Tourmaline (Rubellite) Ring, 1.64ct, D0.52ct, GRJ Sorting, 12.4g, #12.5](http://koufuku.jp/cdn/shop/files/2000000049632_3.jpg?v=1765877430&width=480)
![[Pre-owned] PT900 White Opal Ring, OP 4.30ct, D 0.59ct, 11.9g, #11](http://koufuku.jp/cdn/shop/files/2000000011325_2.jpg?v=1760667250&width=480)
![[Used] PT900 White Opal Ring, OP 0.80ct, D 0.30ct, 5.9g, #10](http://koufuku.jp/cdn/shop/files/2000000071749_2.jpg?v=1768800609&width=480)
![[Used] Pt900 Aquamarine Ring A2.20ct D0.40ct 10.0g #12 CGL sorting included](http://koufuku.jp/cdn/shop/files/2000000054551_8.jpg?v=1742268292&width=480)
![[Used] PT900 Alexandrite Ring A0.22ct D0.50ct Central Gem Laboratory Sorting 6.7g #12](http://koufuku.jp/cdn/shop/files/2000000068572_2.jpg?v=1745901847&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.
![[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)
