Showing 174 products
![[Pre-owned] K18WG AQUAMARINE Aquamarine Ring AQ2.31ct D0.47ct 4.6g #14](http://koufuku.jp/cdn/shop/files/2000000045337_2.jpg?v=1760667250&width=480)
![[Pre-owned] K18WG White Opal Opal Ring, OP 2.44ct, D 0.20ct, 3.0g, #13](http://koufuku.jp/cdn/shop/files/2000000036854_2.jpg?v=1760667249&width=480)
![[Used] K18WG Tanzanite Ring, T2.89ct, D0.44ct, 3.8g, #13](http://koufuku.jp/cdn/shop/files/2000000045375_3.jpg?v=1760667249&width=480)
![[Pre-owned] TASAKI K18WG Amethyst Ring D0.11ct 8.2g #12 ONE PRICE](http://koufuku.jp/cdn/shop/files/2000000068855_2.jpg?v=1760608254&width=480)
![[Used] PT850 RUBY Ruby Ring R0.53ct D0.83ct 5.3g #12](http://koufuku.jp/cdn/shop/files/2000000018690_2.jpg?v=1759735437&width=480)
![[Used] PT900 SAPPHIRE Ring, S1.90ct, D0.57ct, Nihon Hokkyo, 7.9g, #11](http://koufuku.jp/cdn/shop/files/2000000015071_3.jpg?v=1759990506&width=480)
![[Used] PT900 Jadeite Jadeite Ring, Jadeite 1.96ct, Dadeite 0.43ct, CGL Sorting #12.5, 7.9g](http://koufuku.jp/cdn/shop/files/2000000035680_3.jpg?v=1753249893&width=480)
Sold Out
Sold Out
![[Pre-owned] K18/PT850 RUBY Ruby Ring, R0.41ct, D0.18ct, 5.0g, #12](http://koufuku.jp/cdn/shop/files/2000000068473_2.jpg?v=1751698229&width=480)
![[Pre-owned] Les Essentiels K18WG Diamond Ring 3.5g #16](http://koufuku.jp/cdn/shop/files/2000000010465_2.jpg?v=1750923953&width=480)
![[Pre-owned] K18WG DIAMOND Diamond Full Eternity Ring D3.25ct 4.8g #13](http://koufuku.jp/cdn/shop/files/2000000069326_2.jpg?v=1750472223&width=480)
![[Pre-owned] K18WG Emerald Ring E0.85ct D0.42ct 2.7g #10.5](http://koufuku.jp/cdn/shop/files/2000000036205_2.jpg?v=1750401687&width=480)
![[Pre-owned] K18WG BLACK OPAL Black Opal Ring, BO 1.85ct, D 0.28ct, 4.0g, #12](http://koufuku.jp/cdn/shop/files/2000000045924_2.jpg?v=1750401688&width=480)
Sold Out
![[Used] PT900 RUBY Ruby Ring, R0.732ct, D0.56ct, 8.0g, #15](http://koufuku.jp/cdn/shop/files/2000000013091_2.jpg?v=1750401687&width=480)
![[Pre-owned] 18K Yellow Gold Ruby Ring, R0.59ct, D1.00ct, 6.9g, #12](http://koufuku.jp/cdn/shop/files/2000000044378_2.jpg?v=1750401687&width=480)
![[Used] PT900 topaz 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] LES ESSENTIELLES K18WG RUBY Ruby Ring in Invisible Setting, 6.7g, #19](http://koufuku.jp/cdn/shop/files/2000000040448_2.jpg?v=1749178071&width=480)
LES ESSENTIELLES
[Pre-owned] LES ESSENTIELLES K18WG RUBY Ruby Ring in Invisible Setting, 6.7[...]
¥344,800
![[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)
