Showing 1964 products
![[Pre-owned] PT900 EMERALD Ring E0.48ct D0.94ct 12.9g #18](http://koufuku.jp/cdn/shop/files/2000000065267_2.jpg?v=1767585991&width=480)
![[Pre-owned] K18WG Emerald Ring E2.28ct D0.14ct 3.2g #13](http://koufuku.jp/cdn/shop/files/2000000045504_2.jpg?v=1767585991&width=480)
![[Pre-owned] K18WG Emerald Ring E1.40ct D0.70ct 3.5g #16](http://koufuku.jp/cdn/shop/files/2000000036182_2.jpg?v=1767585991&width=480)
![[Pre-owned] PT900 Emerald Ring E1.60ct D0.72ct 7.8g #15](http://koufuku.jp/cdn/shop/files/2000000125930_2.jpg?v=1767585991&width=480)
![[Pre-owned] Queen (Heiwado & Co.) PT950 Burmese Ruby Ring, R1.384ct D0.79ct, with GIA Report, 6.4g, Size 9](http://koufuku.jp/cdn/shop/files/2000000020464_3.jpg?v=1767585984&width=480)
![[Pre-owned] PT900 RUBY Ring R1.52ct D0.44ct 9.9g #11](http://koufuku.jp/cdn/shop/files/2000000127149_2.jpg?v=1767585985&width=480)
![[Pre-owned] K18WG Star Sapphire Ring SS8.26ct D0.50ct 6.6g #14](http://koufuku.jp/cdn/shop/files/2000000082981_2.jpg?v=1767585988&width=480)
![[Pre-owned] PT900 RUBY RING R0.81ct DIA 7.3g #11.5](http://koufuku.jp/cdn/shop/files/2000000098654_2.jpg?v=1767585984&width=480)
![[Pre-owned] K18YG Ruby & Diamond Ring R0.79ct D0.13ct 3.5g #10](http://koufuku.jp/cdn/shop/files/2000000126289_2.jpg?v=1767585980&width=480)
![[Pre-owned] K18 Ruby Ring R1.83ct D0.25ct 12.1g #10](http://koufuku.jp/cdn/shop/files/2000000124360_2.jpg?v=1767585980&width=480)
![[Pre-owned] K18YG RUBY RING R0.73ct D1.36ct 10.1g #14.5](http://koufuku.jp/cdn/shop/files/2000000023700_2.jpg?v=1767585980&width=480)
![[Pre-owned] K18YG Ruby Ring R0.68ct D0.05ct 5.9g #12](http://koufuku.jp/cdn/shop/files/2000000127507_2.jpg?v=1767585980&width=480)
![[Pre-owned] K18 Ruby Ring R1.024ct D0.12ct CGL Sorting 9.6g #14](http://koufuku.jp/cdn/shop/files/DSC_2081.jpg?v=1774689978&width=480)
![[Pre-owned] K18 Ruby Ring R1.18ct D0.48ct CGL Sorting 7.6g #17](http://koufuku.jp/cdn/shop/files/2000000126036_3.jpg?v=1767585974&width=480)
![[Pre-owned] K18YG Ruby Ring R0.69ct D1.10ct with CGL Sorting, 6.5g, Size 10.5](http://koufuku.jp/cdn/shop/files/2000000124889_3.jpg?v=1767585975&width=480)
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![[Pre-owned] K18 RUBY Ring R1.77ct D0.82ct 12.0g #13](http://koufuku.jp/cdn/shop/files/2000000124261_2.jpg?v=1767585974&width=480)
![[Pre-owned] 18K Yellow Gold Ruby Ring 9.2g #14](http://koufuku.jp/cdn/shop/files/2000000126579_2.jpg?v=1767585974&width=480)
![[Pre-owned] PT900 JADEITE RING D0.69ct 7.6g #13](http://koufuku.jp/cdn/shop/files/2000000125961_2.jpg?v=1767585969&width=480)
![[Pre-owned] K18YG Ruby Ring R0.62ct D0.15ct 7.7g #21](http://koufuku.jp/cdn/shop/files/2000000124698_2.jpg?v=1767585969&width=480)
![[Pre-owned] PT900 JADEITE Ring, D0.72ct, with CGL Sorting, 8.3g, Size 11](http://koufuku.jp/cdn/shop/files/2000000126180_3.jpg?v=1767585969&width=480)
![[Pre-owned] K18YG Ruby & Diamond Ring, includes appraisal report, 9.7g, size 14.5](http://koufuku.jp/cdn/shop/files/2000000127255_3.jpg?v=1767585969&width=480)
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![[Pre-owned] PT900 JADEITE RING, J3.74ct, D1.21ct, with GRJ Grading Report, 9.6g, Size 12](http://koufuku.jp/cdn/shop/files/2000000000657_3.jpg?v=1767585964&width=480)
![[Pre-owned] PT900 JADEITE RING J9.14ct D0.25ct CGL Sorting 11.2g #30](http://koufuku.jp/cdn/shop/files/2000000009261_3.jpg?v=1767585964&width=480)
![[Pre-owned] Mitsukoshi PT900 Jadeite Ring, J3.74ct D1.92ct, with GRJ Sorting, 12.6g, Size 8](http://koufuku.jp/cdn/shop/files/2000000125442_3.jpg?v=1767585965&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)