Showing 1787 products
![[Pre-owned] K18YG SAPPHIRE/RUBY RING D0.16ct 3.6g #12](http://koufuku.jp/cdn/shop/files/2000000056203_2.jpg?v=1768882395&width=480)
![[Pre-owned] K18YG Sapphire Ring S1.18ct D0.71ct 7.0g #17](http://koufuku.jp/cdn/shop/files/2000000125633_2.jpg?v=1767585964&width=480)
![[Pre-owned] K18YG SAPPHIRE Sapphire Ring S0.52ct S0.50ct D0.77ct 5.2g #15.5](http://koufuku.jp/cdn/shop/files/2000000095028_2.jpg?v=1766802912&width=480)
![[Pre-owned] K18YG Sapphire Ring S0.89ct D1.18ct with Sorting, 5.8g, #13](http://koufuku.jp/cdn/shop/files/2000000117089_3.jpg?v=1765877331&width=480)
![[Pre-owned] K18YG South Sea Pearl Ring 12.6mm 12.8mm 10.8mm 19.5g #12](http://koufuku.jp/cdn/shop/files/2000000071336_2.jpg?v=1746161988&width=480)
![[Pre-owned] K18YG South Sea Baroque Pearl Pendant Necklace 11.8mm 5.0g](http://koufuku.jp/cdn/shop/files/2000000099231_2.jpg?v=1764830276&width=480)
![[Used] K18YG/PT900 SOUTH SEA PEARL BROOCH White South Sea Pearl Brooch P12.8mm 14.0g](http://koufuku.jp/cdn/shop/files/2000000097923_2.jpg?v=1768444693&width=480)
![[Used] K18YG/Enamel Pearl Brooch Baroque Pearl Brooch 8.6g](http://koufuku.jp/cdn/shop/files/2000000037851_2.jpg?v=1768444653&width=480)
![[Pre-owned] K20YG SAPPHIRE DIAMOND RING Invisible Setting Sapphire/Diamond Ring 8.0g #12](http://koufuku.jp/cdn/shop/files/2000000131245_2.jpg?v=1771312893&width=480)
![[Pre-owned] PEARL & QUARTZ Freshwater Pearl & Crystal Necklace 22.6g](http://koufuku.jp/cdn/shop/files/2000000080222_2.jpg?v=1765012878&width=480)
![[Pre-owned] PT850 Ruby Ring R0.53ct D0.83ct 5.3g #12](http://koufuku.jp/cdn/shop/files/2000000018690_2.jpg?v=1759735437&width=480)
![[Used] PT850/PT900 EMERALD PENDANT NECKLACE Emerald Pendant Necklace D0.47ct 4.7g](http://koufuku.jp/cdn/shop/files/2000000111759_2.jpg?v=1764830303&width=480)
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![Used] PT850/PT900 EMERALD PENDANT NECKLACE E3.83ct D1.32ct 16.0g](http://koufuku.jp/cdn/shop/files/2000000074474_2.jpg?v=1762397786&width=480)
![[Used] PT850/PT900 JADEITE PENDANT NECKLACE Jade (Hisui) Pendant Necklace J0.96ct D0.23ct 5.7g](http://koufuku.jp/cdn/shop/files/2000000106700_2.jpg?v=1762315997&width=480)
![[Pre-owned] PT850/PT900 SAPPHIRE Necklace S0.60ct D0.14ct 4.4g](http://koufuku.jp/cdn/shop/files/2000000114200_2.jpg?v=1765175628&width=480)
![[Pre-owned] PT850/PT900 South Sea Pearl Pendant Necklace 13.6mm D0.71ct 10.5g](http://koufuku.jp/cdn/shop/files/2000000019512_2.jpg?v=1762391063&width=480)
![[Used] PT850/PT900 SPINEL NECKLACE Red Spinel Pendant Necklace S1.78ct D0.48ct 3.9g](http://koufuku.jp/cdn/shop/files/2000000073187_3.jpg?v=1771814868&width=480)
![[Used] PT850/PT900 TOPAZ Blue Topaz Pendant Necklace BT33.75ct D0.04ct Appraisal 16.5g](http://koufuku.jp/cdn/shop/files/2000000065762_3.jpg?v=1771814868&width=480)
![[Pre-owned] Pt900 Natural Orange Pink Sapphire Ring, S2.13ct D0.94ct, 9.5g, Size 10.5, with GRS Report](http://koufuku.jp/cdn/shop/files/2000000082455_5.jpg?v=1750207998&width=480)
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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] PT900 AKOYA PEARL Ring 8.6mm D0.17ct 5.8g #9.5](http://koufuku.jp/cdn/shop/files/2000000014357_2.jpg?v=1746180305&width=480)
![[Pre-owned] PT900 AKOYA Pearl Ring 7.5mm D0.08ct 5.5g #16](http://koufuku.jp/cdn/shop/files/2000000080949_2.jpg?v=1746161933&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)