Gems, Jewelry, and Precious Metals
Showing 1929 products
![[Pre-owned] PT900 Mozambican Ruby Ring, R3.63ct D0.77ct "Pigeon Blood" AIGS Appraisal, 7.1g, Size #14](http://koufuku.jp/cdn/shop/files/2000000022987_6.jpg?v=1765175629&width=480)
![[Used] K18/PT950 PAPARACIA SAPPHIRE NECKLACE Paparadscha Sapphire Pendant Necklace 1.60ct D0.19ct with Japan Germany Gemological Institute certificate 3.9g](http://koufuku.jp/cdn/shop/files/2000000074689_3.jpg?v=1765175629&width=480)
![[Pre-owned] CARRERA Y CARRERA 18K Yellow Gold Diamond Ring, 10.0g, Size 11.5, ONE PRICE](http://koufuku.jp/cdn/shop/files/2000000015088_2.jpg?v=1765175629&width=480)
CARRERA Y CARRERA
[Pre-owned] CARRERA Y CARRERA 18K Yellow Gold Diamond Ring, 10.0g, Size 11.[...]
$2,238.00
![[Pre-owned] K18WG Paraiba Tourmaline Pendant Necklace P0.23ct D0.89ct 6.5g](http://koufuku.jp/cdn/shop/files/2000000048741_2.jpg?v=1765175629&width=480)
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![[Used] PT900 SAPPHIRE RING S1.05ct D0.34ct 4.8g #10](http://koufuku.jp/cdn/shop/files/2000000075457_2.jpg?v=1765175629&width=480)
![[Pre-owned] K18WG Sapphire Ring, Sri Lankan Unheated Sapphire, S6.15ct, D1.18ct, GRS Certified, 6.1g, Size 14](http://koufuku.jp/cdn/shop/files/2000000035222_3.jpg?v=1765175629&width=480)
![[Pre-owned] K18YG RUBY RING R0.45ct D0.60ct 5.2g #12](http://koufuku.jp/cdn/shop/files/2000000116440_2.jpg?v=1765175629&width=480)
![[Pre-owned] PT900 SAPPHIRE RING S1.96ct D0.23ct 9.2g #10](http://koufuku.jp/cdn/shop/files/2000000019994_2.jpg?v=1765175629&width=480)
![[Pre-owned] K18YG SAPPHIRE RING, Sapphire 1.29ct, Diamond 1.53ct, with GRJ sorting, 9.5g, Size 12](http://koufuku.jp/cdn/shop/files/2000000071367_3.jpg?v=1765175629&width=480)
![[Pre-owned] K18YG SAPPHIRE RING S0.91ct D0.80ct 6.8g #12.5](http://koufuku.jp/cdn/shop/files/2000000047089_2.jpg?v=1765175629&width=480)
![[Pre-owned] K18WG Green Tourmaline Pendant Necklace T4.27ct D0.27ct 11.7g](http://koufuku.jp/cdn/shop/files/2000000106090_2.jpg?v=1765175629&width=480)
![[Pre-owned] PT900 TOURMALINE Ring T7.24ct D0.22ct 10.1g #12](http://koufuku.jp/cdn/shop/files/2000000113920_2.jpg?v=1765175629&width=480)
![[Pre-owned] K18YG MABE PEARL NECKLACE 5.7g 13.8mm](http://koufuku.jp/cdn/shop/files/2000000114101_2.jpg?v=1765175629&width=480)
![[Pre-owned] RING K18YG Thai Ruby Ring R3.21ct D2.51ct with GRS "intense to vivid red" certificate, 14.4g, size 13.5](http://koufuku.jp/cdn/shop/files/2000000113975_3.jpg?v=1765175629&width=480)
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![[Pre-owned] K18WG Tanzanite Ring T1.28ct D0.33ct 5.8g #9.5](http://koufuku.jp/cdn/shop/files/2000000037738_3.jpg?v=1765175629&width=480)
![[Pre-owned] K18WG Mozambique Unheated Ruby Ring R2.04ct D1.36ct with GRS Certificate, 4.2g, Size 13](http://koufuku.jp/cdn/shop/files/2000000042893_3.jpg?v=1765175649&width=480)
![[Pre-owned] K18YG RUBY SAPPHIRE Ring R0.70ct S0.70ct D1.00ct 9.0g #14.5](http://koufuku.jp/cdn/shop/files/2000000069265_2.jpg?v=1765175887&width=480)
![[Pre-owned] PT900/K18YG DIAMOND Ring 0.426ct 3.1g #7](http://koufuku.jp/cdn/shop/files/2000000099286_2.jpg?v=1765877331&width=480)
![[Pre-owned] BVLGARI Ring PT950 DIAMOND Diamond Ring, with repair certificate and box, 12.5g, size #12.5, ONE PRICE](http://koufuku.jp/cdn/shop/files/2000000076065_4.jpg?v=1765877331&width=480)
![[Pre-owned] K18WG South Sea Pearl Ring 14mm 10.3g #12](http://koufuku.jp/cdn/shop/files/2000000038209_2.jpg?v=1765877331&width=480)
![[Pre-owned] K18YG Akoya Pearl Ring 3.3mm-3.8mm 3.7g #9](http://koufuku.jp/cdn/shop/files/2000000099224_2.jpg?v=1765877331&width=480)
![[Pre-owned] PT900 Marquise Cut Diamond Ring 1.006ct, G Color, I1 Clarity, D0.36ct, CGL Certified, 8.0g, Size 18.5](http://koufuku.jp/cdn/shop/files/2000000014470_3.jpg?v=1765877331&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)
