Showing 1787 products
![[Pre-owned] K18YG DIAMOND RING Diamond/Ruby Ring D0.40ct 3.1g #12.5](http://koufuku.jp/cdn/shop/files/2000000087917_2.jpg?v=1767586039&width=480)
![[Pre-owned] K18YG Diamond Pendant Necklace 0.299ct 0.73ct 4.3g](http://koufuku.jp/cdn/shop/files/2000000024400_2.jpg?v=1762315996&width=480)
![[Pre-owned] K18YG Diamond Ring 0.412ct D0.25ct #12](http://koufuku.jp/cdn/shop/files/70704_01.jpg?v=1743400497&width=480)
![[Pre-owned] K18YG Diamond Ring 0.45ct D0.59ct 7.4g #15](http://koufuku.jp/cdn/shop/files/2000000070988_2.jpg?v=1752392450&width=480)
![[Pre-owned] K18YG Diamond Ring D0.50ct 3.1g #11](http://koufuku.jp/cdn/shop/files/2000000026718_2.jpg?v=1766219021&width=480)
![[Pre-owned] K18YG DIAMOND Diamond Ring D0.97ct 11.0g #12.5](http://koufuku.jp/cdn/shop/files/2000000115252_2.jpg?v=1762391103&width=480)
![[Pre-owned] K18YG Diamond Ring D2.03ct 6.8g #12](http://koufuku.jp/cdn/shop/files/2000000115269_2.jpg?v=1762391103&width=480)
![[Pre-owned] K18YG DIAMOND RING 1.01ct D0.79ct 5.7g #10](http://koufuku.jp/cdn/shop/files/2000000125510_2.jpg?v=1767585997&width=480)
![[Pre-owned] K18YG Diamond & Sapphire Ring D1.13ct S1.09ct 11.5g #12.5](http://koufuku.jp/cdn/shop/files/2000000115429_2.jpg?v=1762391100&width=480)
![[Pre-owned] K18YG DIAMOND & RUBY RING D0.35ct D0.20ct R0.46ct 5.1g #8.5](http://koufuku.jp/cdn/shop/files/2000000126210_2.jpg?v=1767586039&width=480)
![[Pre-owned] K18YG Diamond Y-shape Pendant Necklace D0.50ct 8.2g](http://koufuku.jp/cdn/shop/files/2000000003207_2.jpg?v=1765175628&width=480)
![[Pre-owned] K18YG Diamond Pendant Necklace D1.00ct 2.8g](http://koufuku.jp/cdn/shop/files/2000000057217_2.jpg?v=1762391101&width=480)
![[Pre-owned] K18YG Diamond Ring 0.38ct 2.7g #9.5](http://koufuku.jp/cdn/shop/files/2000000007984_2.jpg?v=1765877352&width=480)
![[Pre-owned] K18YG DIAMOND Ring D1.00ct 4.0g #11](http://koufuku.jp/cdn/shop/files/2000000053165_2.jpg?v=1762397785&width=480)
![[Pre-owned] K18YG DIAMOND Ring D1.04ct D0.53ct 7.7g #11.5](http://koufuku.jp/cdn/shop/files/2000000073606_2.jpg?v=1765877332&width=480)
![[Pre-owned] K18YG Diamond Ring D1.13ct 4.3g #12.5](http://koufuku.jp/cdn/shop/files/2000000039596_2.jpg?v=1752392593&width=480)
![[Pre-owned] K18YG Diamond Ring D1.26ct 9.7g #13.5](http://koufuku.jp/cdn/shop/files/2000000025438_2.jpg?v=1752392578&width=480)
![[Pre-owned] K18YG EARRING Gold Earrings 8.2g](http://koufuku.jp/cdn/shop/files/2000000131719_2.jpg?v=1771312893&width=480)
![[Pre-owned] K18YG EARRINGS Gold Aero-forming Earrings 9.9g](http://koufuku.jp/cdn/shop/files/2000000131689_2.jpg?v=1786337176&width=480)
KOUFUKU is an e-commerce site that offers a wide range of products, including jewelry, precious metals, designer bags, designer watches, designer apparel, and tableware. In addition to retail sales, we also provide purchase services.
![[Used] K18YG EMERALD DIAMOND RING Emerald/Diamond Ring 4.4g #11.5](http://koufuku.jp/cdn/shop/files/2000000134758_2.jpg?v=1779424676&width=480)
![[Pre-owned] MITSUKOSHI K18YG Ruby & Diamond Ring R0.79ct D0.82ct 7.8g #12.5](http://koufuku.jp/cdn/shop/files/2000000145907_2.jpg?v=1788151913&width=480)
![[Used] PT900 NO HEAT SAPPHIRE RING Sri Lankan Unheated Sapphire Ring S5.40ct D1.19ct GIA Certificate 10.4g #11.5](http://koufuku.jp/cdn/shop/files/2000000133799_3.jpg?v=1777881348&width=480)
![Used] K18YG ENAMEL PENDANT NECKLACE 13.4g](http://koufuku.jp/cdn/shop/files/2000000134116_2.jpg?v=1778489330&width=480)