Gems, Jewelry and Precious Metals
Showing 1386 products
![[Pre-owned] K18YG SAPPHIRE RING Sapphire ring S1.29ct D1.53ct with GRJ sorting 9.5g #12](http://koufuku.jp/cdn/shop/files/2000000071367_3.jpg?v=1765175629&width=480)
![[Pre-owned] K18YG SAPPHIRE RING Sapphire Ring S0.91ct D0.80ct 6.8g #12.5](http://koufuku.jp/cdn/shop/files/2000000047089_2.jpg?v=1765175629&width=480)
![[Pre-owned] K18WG TOURMALINE Green Tourmaline Pendant Necklace T4.27ct D0.27ct 11.7g](http://koufuku.jp/cdn/shop/files/2000000106090_2.jpg?v=1765175629&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] 18K Yellow Gold Mabe Pearl Necklace, 5.7g, 13.8mm Mabe Pearl Pendant Necklace](http://koufuku.jp/cdn/shop/files/2000000114101_2.jpg?v=1765175629&width=480)
![[Pre-owned] 18K Yellow Gold Diamond Pavé-Set Heart Pendant Necklace, 4.7g](http://koufuku.jp/cdn/shop/files/2000000028101_2.jpg?v=1765175629&width=480)
![[Pre-owned] K18WG Tanzanite Ring, T1.28ct, D0.33ct, 5.8g, #9.5](http://koufuku.jp/cdn/shop/files/2000000037738_3.jpg?v=1765175629&width=480)
![[Used] PT900/K18YG DIAMOND Ring 0.426ct 3.1g #7](http://koufuku.jp/cdn/shop/files/2000000099286_2.jpg?v=1765877331&width=480)
![[Pre-owned] K18WG SOUTH SEA PEARL White South Sea Pearl Ring, 14mm, 10.3g, #12](http://koufuku.jp/cdn/shop/files/2000000038209_2.jpg?v=1765877331&width=480)
![[Pre-owned] 18K Yellow Gold Akoya Pearl Ring, 3.3mm-3.8mm, 3.7g, #9](http://koufuku.jp/cdn/shop/files/2000000099224_2.jpg?v=1765877331&width=480)
![[Used] K18/PT900 DIAMOND Ring 0.35ct 3.1g #11](http://koufuku.jp/cdn/shop/files/2000000093017_2.jpg?v=1765877331&width=480)
![[Used] 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] K18YG SAPPHIRE Ring, S0.89ct, D1.18ct, Sorting, 5.8g, #13](http://koufuku.jp/cdn/shop/files/2000000117089_3.jpg?v=1765877331&width=480)
![[Used] 18K Yellow Gold Akoya Pearl Ring, 9.6mm, 4.3g, #13.5](http://koufuku.jp/cdn/shop/files/2000000099330_2.jpg?v=1765877331&width=480)
![[Used] PT900 Emerald Ring Emerald 1.51ct D0.69ct 9.7g #12](http://koufuku.jp/cdn/shop/files/2000000094601_2_2.jpg?v=1766993836&width=480)
![[Used] PT900 MEXICO OPAL Mexican Opal Ring D0.20ct 8.3g #9](http://koufuku.jp/cdn/shop/files/2000000102085_2.jpg?v=1765877331&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)
