Showing 1787 products
![[Pre-owned] 18K Yellow Gold Jadeite Ring, Jade 2.96ct, Diamond 1.14ct, 4.7g, Size 11](http://koufuku.jp/cdn/shop/files/2000000038193_2.jpg?v=1771665668&width=480)
![[Used] K18YG JADEITE RING Jade (Hisui) Ring J2.473ct D0.813ct with NIPPO KYOKAI Sorting 7.0g #7.5](http://koufuku.jp/cdn/shop/files/2000000039091_3.jpg?v=1762391102&width=480)
![[Pre-owned] K18YG JADEITE Jade Necklace 15.8g](http://koufuku.jp/cdn/shop/files/2000000099538_2.jpg?v=1762397785&width=480)
![[Pre-owned] K18YG Jadeite Ring J2.54ct D1.00ct 7.2g #11.5](http://koufuku.jp/cdn/shop/files/2000000041001_2.jpg?v=1762391104&width=480)
![[Pre-owned] K18YG JADEITE Ring with GRJ Sorting, 2.0g, Size 10](http://koufuku.jp/cdn/shop/files/2000000040455_3.jpg?v=1762391103&width=480)
![[Used] K18YG LAZURITE Lapis Lazuli Ring Concrete Design 13.2g #13](http://koufuku.jp/cdn/shop/files/2000000087597_2.jpg?v=1778134492&width=480)
![[Pre-owned] K18YG MABE PEARL EARRINGS 13.5mm 6.0g](http://koufuku.jp/cdn/shop/files/2000000150253_2.jpg?v=1792040797&width=480)
![[Pre-owned] K18YG MABE PEARL EARRINGS 13.7mm 5.8g](http://koufuku.jp/cdn/shop/files/2000000150123_2.jpg?v=1792039214&width=480)
![[Used] K18YG MABE PEARL NECKLACE 17.3mm D0.21ct 15.2g](http://koufuku.jp/cdn/shop/files/2000000107561_2.jpg?v=1771814676&width=480)
![[Pre-owned] K18YG Mabe Pearl Pendant Necklace 8.8g](http://koufuku.jp/cdn/shop/files/2000000024516_2.jpg?v=1762391101&width=480)
![[Pre-owned] K18YG Mabe Pearl Ring, 13.5mm, 4.1g, Size 10.5](http://koufuku.jp/cdn/shop/files/2000000048017_2.jpg?v=1765877332&width=480)
![[Pre-owned] K18YG MEXICO OPAL Fire Opal Ring OP2.44ct D0.38ct with Appraisal, 11g, Size #12](http://koufuku.jp/cdn/shop/files/2000000064031_3.jpg?v=1768444693&width=480)
![[Pre-owned] K18YG MEXICO OPAL Ring OP1.19ct D1.31ct 6.3g #10.5](http://koufuku.jp/cdn/shop/files/2000000057293_2.jpg?v=1767585887&width=480)
![[Pre-owned] K18YG MEXICO OPAL Ring OP5.00ct D0.14ct 6.0g #16](http://koufuku.jp/cdn/shop/files/2000000069586_2.jpg?v=1752392450&width=480)
![[Pre-owned] K18YG MULTI-STONE PENDANT (Convertible Brooch), with Diamond, 17.4g](http://koufuku.jp/cdn/shop/files/2000000114415_2.jpg?v=1768444671&width=480)
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![[Used] K18YG MULTI RING Ruby/Sapphire/Emerald/White Sapphire Ring 11.3g #17](http://koufuku.jp/cdn/shop/files/2000000121796_2.jpg?v=1771814808&width=480)
![[Pre-owned] K18YG MULTI STONE RING Emerald/Ruby/Sapphire Ring 0.57ct 6.8g #13](http://koufuku.jp/cdn/shop/files/2000000131429_2.jpg?v=1778493621&width=480)
![[Pre-owned] K18YG Myanmar RUBY RING Burmese Ruby Ring R1.13ct R1.03ct D0.74ct GIA Certified 8.9g #12](http://koufuku.jp/cdn/shop/files/2000000004556_5.jpg?v=1768444829&width=480)
![[Pre-owned] K18YG NECKLACE 5-strand Gold Necklace 20.1g 38cm](http://koufuku.jp/cdn/shop/files/2000000146393_2.jpg?v=1787901981&width=480)
![[Pre-owned] K18YG OPAL RING Semi-Black Opal Ring 8.1g #12.5](http://koufuku.jp/cdn/shop/files/2000000129655_2.jpg?v=1771658186&width=480)
![[Pre-owned] K18YG BLACK OPAL RING BO1.01ct D0.16ct 6.7g #9](http://koufuku.jp/cdn/shop/files/2000000099644_2.jpg?v=1771665041&width=480)
![[Pre-owned] K18YG Opal Pendant Necklace, 18.4ct, with Sorting, 8.7g](http://koufuku.jp/cdn/shop/files/2000000074603_3.jpg?v=1763175991&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.
![[Pre-owned] K18YG OPAL Pendant Necklace D0.30ct 12.9g](http://koufuku.jp/cdn/shop/files/2000000077093_3.jpg?v=1763176155&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)