Showing 1787 products
![[Pre-owned] PT900 Diamond 0.355ct, E Color, VS1, Excellent Cut, VSB, CGL Certificate, 3.5g, Size #9](http://koufuku.jp/cdn/shop/files/2000000099217_3.jpg?v=1765877331&width=480)
![[Pre-owned] PT900 DIAMOND BROOCH D1.65ct D0.79ct 13.8g](http://koufuku.jp/cdn/shop/files/2000000133294_2.jpg?v=1786336277&width=480)
![[Pre-owned] PT900 DIAMOND NECKLACE Diamond Heart Motif Full Eternity Necklace D22.29ct 58.9g](http://koufuku.jp/cdn/shop/files/2000000019017_4.jpg?v=1774852517&width=480)
![[Pre-owned] PT900 DIAMOND RING 0.475ct F Color VS1 Clarity GOOD Cut, CGL Sorting, 4.6g, Size 11](http://koufuku.jp/cdn/shop/files/2000000018461_3.jpg?v=1771665041&width=480)
![[Pre-owned] PT900 DIAMOND RING Diamond Solitaire Ring 0.263ct 3.0g #9](http://koufuku.jp/cdn/shop/files/2000000112619_2.jpg?v=1789032859&width=480)
![[Pre-owned] PT900 DIAMOND RING 0.22ct D0.14ct 3.3g #11](http://koufuku.jp/cdn/shop/files/2000000121932_2.jpg?v=1768882395&width=480)
![[Used] PT900 DIAMOND RING Diamond Ring 0.330ct D0.55ct 2.3g #8](http://koufuku.jp/cdn/shop/files/2000000121956_2.jpg?v=1768806607&width=480)
![[Pre-owned] PT900 DIAMOND RING 0.50ct D0.25ct 3.4g #10](http://koufuku.jp/cdn/shop/files/2000000006635_2.jpg?v=1771665140&width=480)
![[Used] PT900 DIAMOND RING Diamond Ring 0.50ct D0.268ct 9.1g #12](http://koufuku.jp/cdn/shop/files/2000000121444_2.jpg?v=1771814787&width=480)
![[Pre-owned] PT900 Diamond Ring 0.523ct D-Color VS1-Clarity Very Good Cut CGL-Sorted 4.5g #11.5](http://koufuku.jp/cdn/shop/files/2000000022079_2.jpg?v=1771665041&width=480)
![Used] PT900 DIAMOND RING 0.652ct D0.38ct 5.7g #13](http://koufuku.jp/cdn/shop/files/2000000021676_2.jpg?v=1750923953&width=480)
![[Pre-owned] PT900 DIAMOND RING 1.002ct I-Color SI2-Clarity D1.005ct CGL Certified 12.1g #12](http://koufuku.jp/cdn/shop/files/2000000123424_4.jpg?v=1768882395&width=480)
![[Pre-owned] PT900 DIAMOND RING 1.005ct F-Color SI2-Class Good Cut 4.5g #11](http://koufuku.jp/cdn/shop/files/2000000018188_2.jpg?v=1768197671&width=480)
Sold Out
![[Pre-owned] PT900 DIAMOND RING 1.007ct F Color I1 Clarity Good Cut D0.59ct 6.0g #10](http://koufuku.jp/cdn/shop/files/2000000014777_2.jpg?v=1771665041&width=480)
Sold Out
![[Pre-owned] PT900 DIAMOND RING 1.026ct 4.4g #10](http://koufuku.jp/cdn/shop/files/2000000113913_2.jpg?v=1789119612&width=480)
![[Used] PT900 DIAMOND RING 1.645ct D0.17ct 7.1g #11](http://koufuku.jp/cdn/shop/files/2000000017488_2.jpg?v=1765877429&width=480)
![[Pre-owned] PT900 DIAMOND RING D0.16ct D0.44ct 20.9g #11.5](http://koufuku.jp/cdn/shop/files/2000000123103_2.jpg?v=1771219974&width=480)
![[Pre-owned] PT900 DIAMOND RING 0.56ct 12.2g #14](http://koufuku.jp/cdn/shop/files/2000000130453_2.jpg?v=1771316661&width=480)
![[Pre-owned] PT900 DIAMOND RING D0.70ct 17.7g #12](http://koufuku.jp/cdn/shop/files/2000000136127_2.jpg?v=1785994102&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] PT900 DIAMOND RING D1.00ct 13.2g #18](http://koufuku.jp/cdn/shop/files/2000000131221_2.jpg?v=1771814676&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)