Showing 174 products
![[Used] PT900 SPINEL Ring S4.46ct D0.31ct 8.9g #17.5](http://koufuku.jp/cdn/shop/files/2000000016474_2.jpg?v=1766801414&width=480)
![[Pre-owned] 18K Yellow Gold Emerald Ring, E0.25ct, D0.81ct, 7.2g, #12](http://koufuku.jp/cdn/shop/files/2000000116471_2.jpg?v=1766801414&width=480)
![[Pre-owned] PT900 SAPPHIRE Ring, S1.02ct, D0.10ct, GRJ Sorting, 5.8g, #9](http://koufuku.jp/cdn/shop/files/2000000124995_3.jpg?v=1766801414&width=480)
![[Pre-owned] K18WG STAR SAPPHIRE Star Sapphire Ring, SS7.71ct, D0.36ct, 6.2g, #12.5](http://koufuku.jp/cdn/shop/files/2000000050348_2.jpg?v=1766801414&width=480)
![[Pre-owned] PT900 SAPPHIRE Sapphire Ring, S2.564ct, D0.86ct, CGL Certificate, 15.0g, #13](http://koufuku.jp/cdn/shop/files/2000000016597_2.jpg?v=1766801414&width=480)
![[Pre-owned] 18K White Gold SAPPHIRE Color Sapphire Pendant Necklace, S10.80ct, D0.12ct, Sorting, 11.0g](http://koufuku.jp/cdn/shop/files/2000000106946_2.jpg?v=1766801414&width=480)
![[Pre-owned] K18WG BLACK OPAL Black Opal Ring, BO 1.72ct, D 0.17ct, 3.6g](http://koufuku.jp/cdn/shop/files/2000000036595_2.jpg?v=1766801414&width=480)
![[Used] PT850 Emerald Ring E0.56ct D0.58ct 4.9g #10.5](http://koufuku.jp/cdn/shop/files/2000000126081_2.jpg?v=1766801414&width=480)
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![[Pre-owned] K18WG Emerald Ring, E2.23ct, D0.53ct, 4.8g, #13.5](http://koufuku.jp/cdn/shop/files/2000000041827_2.jpg?v=1766801414&width=480)
![[Used] PT900 Emerald Ring, E0.93ct, D0.76ct, CGL Sorting, 5.9g, #13, Handmade](http://koufuku.jp/cdn/shop/files/2000000125916_3.jpg?v=1766801414&width=480)
![[Used] K18PG DIAMOND RING Diamond Ring D0.05ct 6.4g #16.5](http://koufuku.jp/cdn/shop/files/2000000112466_2.jpg?v=1766221259&width=480)
![[Used] PT900 RUBY RING Ruby ring R0.56ct D0.08c t4.9g #11](http://koufuku.jp/cdn/shop/files/2000000117423_2.jpg?v=1766221258&width=480)
![[Used] K18WG DIAMOND Diamond Ring D1.95ct 7.1g #12](http://koufuku.jp/cdn/shop/files/2000000039015_2.jpg?v=1766221258&width=480)
![[Used] PT900 BLACK OPAL Black Opal Ring, BO 3.45ct, D 0.62ct, 4.7g, #16.5](http://koufuku.jp/cdn/shop/files/2000000018195_2.jpg?v=1766219128&width=480)
![[Used] PT900 Diamond Ring 0.546ct 4.7g #11.5](http://koufuku.jp/cdn/shop/files/2000000088570_2.jpg?v=1766219127&width=480)
![[Pre-owned] K18YG/PT900 White Opal Ring, OP 1.09ct, D 0.28ct, 7.7g, #14](http://koufuku.jp/cdn/shop/files/2000000037905_2.jpg?v=1766219054&width=480)
![[Pre-owned] PT900 Diamond Men's Ring, D0.43ct, 18.9g, #17](http://koufuku.jp/cdn/shop/files/2000000106366_2.jpg?v=1766219043&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 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)
