Showing 1288 products
![[Pre-owned] 18K Yellow Gold Opal Pendant Necklace, 18.4ct, 8.7g, with sorting](http://koufuku.jp/cdn/shop/files/2000000074603_3.jpg?v=1763175991&width=480)
![[Pre-owned] 18K Yellow Gold Opal Pendant Necklace, D0.30ct, 12.9g](http://koufuku.jp/cdn/shop/files/2000000077093_3.jpg?v=1763176155&width=480)
![[Pre-owned] 18K Yellow Gold OPAL Boulder Opal Ring, 4.18ct Borealis, 0.11ct Diamond, 11.4g, #12](http://koufuku.jp/cdn/shop/files/2000000105925_2.jpg?v=1765161864&width=480)
![[Used] K18YG PEARL RING Pearl Ring P9.2mm P9.2mm D 1.13ct 10.8g #16](http://koufuku.jp/cdn/shop/files/2000000031095_2.jpg?v=1768806608&width=480)
![[Used] K18YG PEARL RING White South Sea Pearl Ring P12.2mm D1.80ct 11.3g #7](http://koufuku.jp/cdn/shop/files/2000000044002_2.jpg?v=1768882396&width=480)
![[Used] K18YG PEARL Ring 10.6mm D0.40ct 8.4g #11.5](http://koufuku.jp/cdn/shop/files/2000000043548_2.jpg?v=1766219023&width=480)
![[Pre-owned] K18YG PERIDOT RING Peridot Ring D0.22ct 7.4g #12.5](http://koufuku.jp/cdn/shop/files/2000000125060_2.jpg?v=1771053915&width=480)
![[Pre-owned] 18K Yellow Gold Pink Sapphire Ring, PS 2.12ct, D 1.20ct, 6.9g, #11.5](http://koufuku.jp/cdn/shop/files/DSC_2017.jpg?v=1761632587&width=480)
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![[Pre-owned] 18K Yellow Gold Pink Tourmaline Ring, 0.67ct Tall, 0.14ct Deep, 3.1g, #5](http://koufuku.jp/cdn/shop/files/2000000080543_2.jpg?v=1752392449&width=480)
![[Pre-owned] 18K Yellow Gold Quartz Citrine & Smoky Quartz Pendant Necklace 3.9g](http://koufuku.jp/cdn/shop/files/2000000100265_2.jpg?v=1766824685&width=480)
![[Used] K18YG QUARTZITE RING Quartzite ring](http://koufuku.jp/cdn/shop/files/2000000121260_2.jpg?v=1768882395&width=480)
![[Used] K18YG RUBY RING Ruby Ring 4.6g #12](http://koufuku.jp/cdn/shop/files/2000000044743_2.jpg?v=1768444652&width=480)
![[Pre-owned] K18YG RUBY RING Ruby Ring R0.27ct D0.10ct 3.0g #14](http://koufuku.jp/cdn/shop/files/2000000056173_2.jpg?v=1768444653&width=480)
![[Used] K18YG RUBY Ruby Ring, R0.43ct, D0.15ct, 6.5g, #12](http://koufuku.jp/cdn/shop/files/2000000123110_2.jpg?v=1771053915&width=480)
![[Pre-owned] 18K Yellow Gold Ruby Ring, 0.45ct R, 0.33ct D, 7.6g, #14](http://koufuku.jp/cdn/shop/files/2000000116488_2.jpg?v=1764915892&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 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)
