Showing 1288 products
![[Used] PT900 Diamond Ring, 1.00ct, Certified 8.2g](http://koufuku.jp/cdn/shop/files/2000000051567_2.jpg?v=1760609369&width=480)
![[Used] PT900 Diamond Ring 0.402 D0.67ct 7.7g #16.5](http://koufuku.jp/cdn/shop/files/2000000012452_2.jpg?v=1767585887&width=480)
![[Used] PT900 Emerald Ring, Emerald 1.40ct, D0.78ct, 8.4g, #10](http://koufuku.jp/cdn/shop/files/2000000029627_2.jpg?v=1766824686&width=480)
![[Used] PT900 Emerald Ring, E1.80ct, Diamond 0.71ct, 7.3g, #12](http://koufuku.jp/cdn/shop/files/2000000077406_2.jpg?v=1765163849&width=480)
![[Pre-owned] PT900 Emerald Ring, E1.87ct, D1.30ct, 11.7g, #11.5](http://koufuku.jp/cdn/shop/files/2000000075396_2.jpg?v=1765175629&width=480)
![[Used] PT900 Emerald Ring, E1.60ct, D0.72ct, 7.8g, #15](http://koufuku.jp/cdn/shop/files/2000000125930_2.jpg?v=1767585991&width=480)
![[Pre-owned] PT900 Jadeite Ring, Jadeite 3.25ct, Diameter 0.31ct, CGL Sorting, 5.7g, #17.5](http://koufuku.jp/cdn/shop/files/2000000022192_3.jpg?v=1768806607&width=480)
![[Used] PT900 Jadeite Jadeite Ring D0.69ct 7.6g #13](http://koufuku.jp/cdn/shop/files/2000000125961_2.jpg?v=1767585969&width=480)
![[Pre-owned] PT900 RUBY Burmese Ruby Ring, R1.53ct, D0.55ct, GIA, 5.4g](http://koufuku.jp/cdn/shop/files/2000000015972_3.jpg?v=1767585957&width=480)
![[Used] PT900 RUBY Ruby Ring R4.09ct D0.21ct 8.6g #16](http://koufuku.jp/cdn/shop/files/2000000125954_2.jpg?v=1767586070&width=480)
![[Used] PT900 SAPPHIRE Ring, S1.05ct, D0.34ct, 4.8g, #10](http://koufuku.jp/cdn/shop/files/2000000075457_2.jpg?v=1765175629&width=480)
![[Used] PT900 SAPPHIRE Ring, S1.10ct, D0.33ct, 4.9g, #8](http://koufuku.jp/cdn/shop/files/2000000090375_2.jpg?v=1765163848&width=480)
![[Used] PT900 SAPPHIRE Ring, S2.76ct, D0.36ct, 6.8g, #11.5](http://koufuku.jp/cdn/shop/files/2000000016801_2.jpg?v=1759988719&width=480)
![[Pre-owned] PT900 South Sea Pearl Ring, 11.3mm, D0.10ct, #12, 5.0g](http://koufuku.jp/cdn/shop/files/2000000049830_3.jpg?v=1753249893&width=480)
![[Used] PT900 TAHITIAN PEARL Tahitian pearl ring 11.0mm D0.56ct 9.6g #10](http://koufuku.jp/cdn/shop/files/2000000031217_2.jpg?v=1746171960&width=480)
![[Used] PT900 White Opal Ring, D0.43ct, 9.2g, #8.5](http://koufuku.jp/cdn/shop/files/2000000017716_2.jpg?v=1768800609&width=480)
![[Used] PT900 Chrysoberyl Cat's Eye Ring CE2.51ct D0.32ct Central Gem Laboratory Sorting 4.8g #10.5](http://koufuku.jp/cdn/shop/files/2000000019123_3.jpg?v=1745901753&width=480)
![[Used] PT900 jade ring J4.54ct D0.46ct 8.4g#12.5 Identification](http://koufuku.jp/cdn/shop/files/2000000014609_8.jpg?v=1743407785&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] PT950 Pink Sapphire Ring, PS3.83ct, D0.80ct, Sorting 5.4g, #12](http://koufuku.jp/cdn/shop/files/2000000001265_3.jpg?v=1763175991&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)
