Gems, Jewelry and Precious Metals
Showing 1386 products
![[Pre-owned] K18WG STAR SAPPHIRE pendant necklace, stainless steel, 22.00ct, 0.16ct, 16.2g](http://koufuku.jp/cdn/shop/files/2000000043630_2.jpg?v=1765175628&width=480)
![[Pre-owned] K18/K10WG Diamond Pendant Necklace 0.04ct 2.0g](http://koufuku.jp/cdn/shop/files/2000000042374_2.jpg?v=1765175629&width=480)
![[Pre-owned] PT900 Emerald Cabochon Cut Emerald Ring, E6.04ct, D0.30ct, 11.0g, #11](http://koufuku.jp/cdn/shop/files/2000000024554_2.jpg?v=1765175629&width=480)
![[Used] PT850 Emerald Ring, E3.33ct, D1.79ct, 11.5g, #7](http://koufuku.jp/cdn/shop/files/2000000073644_2.jpg?v=1765175629&width=480)
![[Pre-owned] 18K Yellow Gold Morganite Pendant Necklace, M7.40ct, D1.43ct, 24.7g](http://koufuku.jp/cdn/shop/files/2000000117317_2.jpg?v=1765175629&width=480)
![[Pre-owned] K18WG SAPPHIRE Sapphire Ring, S1.12ct, D0.10ct, 3.6g, #11.5](http://koufuku.jp/cdn/shop/files/2000000117515_2.jpg?v=1765175628&width=480)
![[Pre-owned] K18WG RUBY Ruby Pendant Necklace R0.51ct D0.10ct 3.0g](http://koufuku.jp/cdn/shop/files/2000000074368_2.jpg?v=1765175628&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)
![[Pre-owned] PT900 Emerald Ring, E4.269ct, D0.57ct, Certificate of Authenticity, 7.5g, #13](http://koufuku.jp/cdn/shop/files/2000000027319_2.jpg?v=1765175629&width=480)
![[Pre-owned] K18WG Diamond Pendant Necklace. 0.61ct 6.1g](http://koufuku.jp/cdn/shop/files/2000000111810_2.jpg?v=1765175629&width=480)
![[Used] PT900 SAPPHIRE Sapphire Ring, S1.11ct, D0.24ct, 6.5g](http://koufuku.jp/cdn/shop/files/2000000117430_2.jpg?v=1765175628&width=480)
![[Pre-owned] CARRERA Y CARRERA K18YG DIAMOND Ring 10.0g #11.5 ONE PRICE](http://koufuku.jp/cdn/shop/files/2000000015088_2.jpg?v=1765175629&width=480)
![[Pre-owned] 18K White Gold Paraiba Tourmaline Pendant Necklace, P0.23ct, D0.89ct, 6.5g](http://koufuku.jp/cdn/shop/files/2000000048741_2.jpg?v=1765175629&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)
![[Pre-owned] K18YG RUBY RING Ruby Ring R0.45ct D0.60ct 5.2g #12](http://koufuku.jp/cdn/shop/files/2000000116440_2.jpg?v=1765175629&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 S1.96ct 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)
