Gems, Jewelry, and Precious Metals
Showing 1929 products
![[Pre-owned] K18YG Ruby Ring R1.39ct D0.50ct 5.6g #11](http://koufuku.jp/cdn/shop/files/2000000077437_2.jpg?v=1746252099&width=480)
![[Pre-owned] K18YG Sapphire Ring S1.00ct D0.94ct 7.0g #14.5](http://koufuku.jp/cdn/shop/files/2000000077444_2.jpg?v=1746252111&width=480)
![[Pre-owned] K10YG Ruby Ring D0.10ct 1.3g #9](http://koufuku.jp/cdn/shop/files/2000000071299_2.jpg?v=1746252600&width=480)
![[Pre-owned] K18YG Ruby Ring R0.50ct D0.22ct 3.7g #10.5](http://koufuku.jp/cdn/shop/files/2000000085166_2.jpg?v=1746252612&width=480)
![[Pre-owned] K18YG Ruby Ring R2.52ct D0.39ct 7.4g #13](http://koufuku.jp/cdn/shop/files/2000000071435_8.jpg?v=1749695656&width=480)
![[Pre-owned] K18YG RUBY Ring R0.30ct D0.71ct 3.0g #9.5](http://koufuku.jp/cdn/shop/files/2000000073101_2.jpg?v=1753147302&width=480)
![[Pre-owned] K18YG Ruby Ring 6.6g #8](http://koufuku.jp/cdn/shop/files/2000000078335_2.jpg?v=1746252745&width=480)
![[Pre-owned] TRILOGY PT900 DIAMOND RING D0.71ct D0.35ct 8.5g #8.5 ONE PRICE](http://koufuku.jp/cdn/shop/files/2000000020686_2.jpg?v=1747791904&width=480)
![[Pre-owned] T&Co. Tiffany K18WG Atlas Diamond Ring 6.7g #9 ONE PRICE](http://koufuku.jp/cdn/shop/files/2000000014722_2.jpg?v=1747791904&width=480)
![[Pre-owned] STAR JEWELRY PT950 Diamond Ring D0.288ct D0.10ct 3.7g #10 ONE PRICE](http://koufuku.jp/cdn/shop/files/2000000011141_2.jpg?v=1749111052&width=480)
STAR JEWELRY
[Pre-owned] STAR JEWELRY PT950 Diamond Ring D0.288ct D0.10ct 3.7g #10 ONE PRICE
$541.00
Sold Out
![[Pre-owned] K18 Ruby Ring R1.19ct D0.82ct 4.8g #10.5](http://koufuku.jp/cdn/shop/files/2000000039800_2.jpg?v=1749175383&width=480)
![[Pre-owned] PT900 RUBY Ruby Ring R0.71ct D0.70ct 7.2g #11.5](http://koufuku.jp/cdn/shop/files/2000000087788_2.jpg?v=1749178071&width=480)
![[Used] PT900 PINK SAPPHIRE RING Pink Sapphire Ring PS1.00ct PS0.67ct D1.091ct 6.1g #12](http://koufuku.jp/cdn/shop/files/2000000087276_2.jpg?v=1749178071&width=480)
![[Pre-owned] K18YG Ruby Ring R0.65ct 5.8g #13.5](http://koufuku.jp/cdn/shop/files/2000000044200_2.jpg?v=1749178071&width=480)
![[Pre-owned] LES ESSENTIELLES K18WG Ruby Ring, Invisible Setting, 6.7g, Size 19](http://koufuku.jp/cdn/shop/files/2000000040448_2.jpg?v=1749178071&width=480)
LES ESSENTIELLES
[Pre-owned] LES ESSENTIELLES K18WG Ruby Ring, Invisible Setting, 6.7g, Size 19
$2,224.00
Sold Out
![[Pre-owned] K18YG Ruby Ring R1.25ct D0.48ct, includes mini appraisal certificate, 4.5g, size 7.5](http://koufuku.jp/cdn/shop/files/2000000064505_3.jpg?v=1749178071&width=480)
Sold Out
![[Used] K18YG RUBY RING Ruby Ring R2.19ct D0.26ct 7.6g #12.5](http://koufuku.jp/cdn/shop/files/2000000075082_2.jpg?v=1749178071&width=480)
![[Pre-owned] PT900 Burmese Ruby Ring, R1.32ct D1.61ct, with GIA Report, 6.9g, Size #13](http://koufuku.jp/cdn/shop/files/2000000075563_3.jpg?v=1749178071&width=480)
Sold Out
![[Pre-owned] PT900 Burmese Ruby Ring, R1.41ct D0.29ct, Pigeon Blood, AIGS Certified, 6.9g, Size 12](http://koufuku.jp/cdn/shop/files/72999_01.jpg?v=1751706164&width=480)
Sold Out
![[Pre-owned] PT900 RUBY Ring R0.98ct D0.47ct NGL Cert. 4.9g #8](http://koufuku.jp/cdn/shop/files/2000000087863_3.jpg?v=1749178071&width=480)
![[Pre-owned] K18WG Ruby Ring, Myanmar Origin, R1.07ct D1.21ct, Pigeon Blood, with AIGS Certificate, 5.3g, Size 13](http://koufuku.jp/cdn/shop/files/DSC_6537.jpg?v=1774689747&width=480)
![[Pre-owned] PT900 Imperial Topaz Ring T0.77ct D0.60ct 6.2g #14](http://koufuku.jp/cdn/shop/files/2000000003665_2.jpg?v=1749884385&width=480)
![[Pre-owned] PT900 RUBY Unheated Ruby Ring R1.077ct D0.72ct 5.8g #12 with Appraisal Report](http://koufuku.jp/cdn/shop/files/2000000011783_3.jpg?v=1750401687&width=480)
![[Pre-owned] K18YG Ruby Ring R0.59ct D1.00ct 6.9g #12](http://koufuku.jp/cdn/shop/files/2000000044378_2.jpg?v=1750401687&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)
