Gems, Jewelry, and Precious Metals
Showing 1929 products
![[Used] K18YG RUBY RING 7.6g #17](http://koufuku.jp/cdn/shop/files/2000000112589_2.jpg?v=1761642460&width=480)
![[Pre-owned] K18YG Ruby & Diamond Pave Eternity Ring R1.20ct D3.40ct 3.9g #11.5](http://koufuku.jp/cdn/shop/files/DSC_2023.jpg?v=1775189064&width=480)
![[Pre-owned] K18YG CORAL Pendant Necklace 7.3mm 9.1g](http://koufuku.jp/cdn/shop/files/2000000078700_2.jpg?v=1762315996&width=480)
![[Pre-owned] K18YG Diamond Pendant Necklace 0.299ct 0.73ct 4.3g](http://koufuku.jp/cdn/shop/files/2000000024400_2.jpg?v=1762315996&width=480)
![[Pre-owned] K18YG Coral Necklace 5.6g](http://koufuku.jp/cdn/shop/files/2000000080185_2.jpg?v=1762315996&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] Rhodochrosite (Inca Rose) / Imitation Pearl Necklace STEEL 63.6g](http://koufuku.jp/cdn/shop/files/2000000043654_2.jpg?v=1762315997&width=480)
![[Pre-owned] K18WG Emerald Ring E1.73ct D0.21ct 3.3g #14](http://koufuku.jp/cdn/shop/files/2000000045900_2.jpg?v=1762316313&width=480)
![[Used] K18WG EMERALD RING E1.51ct D0.55ct 4.1g #10.5](http://koufuku.jp/cdn/shop/files/2000000044644_2.jpg?v=1762316313&width=480)
![[Pre-owned] K18WG Emerald Ring E2.275ct D0.29ct 3.5g #15.5](http://koufuku.jp/cdn/shop/files/2000000036267_2.jpg?v=1762316313&width=480)
![[Pre-owned] K18WG EMERALD Ring E2.40ct D0.26ct 2.9g #13.5](http://koufuku.jp/cdn/shop/files/2000000036212_2.jpg?v=1762316313&width=480)
![[Pre-owned] K18WG Colombian Non-oil Emerald Ring E3.06ct D0.48ct, includes GIA report, 6.8g](http://koufuku.jp/cdn/shop/files/2000000043296_3.jpg?v=1762316313&width=480)
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![[Pre-owned] PT900 EMERALD Ring E0.67ct D0.21ct with Sorting Memo, 5.0g, Size #14](http://koufuku.jp/cdn/shop/files/2000000007632_3.jpg?v=1762316313&width=480)
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![[Pre-owned] K18WG Emerald Ring, E1.28ct, D0.75ct, 4.9g, Size 13.5](http://koufuku.jp/cdn/shop/files/2000000039176_2.jpg?v=1762316313&width=480)
![[Pre-owned] K18WG Emerald Ring E5.93ct D0.16ct 5.2g #14](http://koufuku.jp/cdn/shop/files/2000000036168_2.jpg?v=1762316313&width=480)
![[Pre-owned] K18WG Jadeite Ring J1.93ct D1.66ct 6.5g #13.5](http://koufuku.jp/cdn/shop/files/2000000039411_2.jpg?v=1762316313&width=480)
![[Pre-owned] K18WG Diamond Bracelet D0.92ct 11.5g 18cm](http://koufuku.jp/cdn/shop/files/2000000030197_2.jpg?v=1762316313&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] K18WG Emerald Ring, E13.04ct D2.25ct, 11.7g, Size 13](http://koufuku.jp/cdn/shop/files/2000000023793_2.jpg?v=1762316313&width=480)
![[Pre-owned] PT850 Aquamarine Pendant Necklace AQ3.70ct D0.13ct 8.9g](http://koufuku.jp/cdn/shop/files/2000000106229_2.jpg?v=1762336636&width=480)
![[Pre-owned] PT850/PT900 PINK DIAMOND Necklace 0.111ct FLPP D0.18ct with CGL Sorting, 3.4g](http://koufuku.jp/cdn/shop/files/2000000037967_3.jpg?v=1762391062&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)
![[Pre-owned] PT850/PT900 RUBY Ruby Pendant Necklace R0.40ct D0.20ct 5.3g](http://koufuku.jp/cdn/shop/files/2000000015996_2.jpg?v=1762391062&width=480)
![[Pre-owned] K18YG Tourmaline Black Tourmaline Bead Bracelet 11.8g](http://koufuku.jp/cdn/shop/files/2000000080802_2.jpg?v=1762391062&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)