Gems, Jewelry, and Precious Metals
Showing 1929 products
![[Pre-owned] K18YG SAPPHIRE RING S1.05ct D0.30ct 6.1g #12.5](http://koufuku.jp/cdn/shop/files/2000000106533_2.jpg?v=1765161884&width=480)
![[Pre-owned] K18YG SAPPHIRE RING Sapphire Ring S1.59ct S0.91ct D1.62ct 9.3g #11.5](http://koufuku.jp/cdn/shop/files/2000000002477_2.jpg?v=1765161884&width=480)
![[Pre-owned] CALDERONI 18K Yellow Gold Akoya Pearl Necklace 8.5-9.0mm D0.69ct 48.5g BOX/CARD ONE PRICE](http://koufuku.jp/cdn/shop/files/2000000014081_2.jpg?v=1765161884&width=480)
CALDERONI
[Pre-owned] CALDERONI 18K Yellow Gold Akoya Pearl Necklace 8.5-9.0mm D0.69c[...]
$2,035.00
![[Pre-owned] K18WG DIAMOND Necklace D0.50ct 3.4g](http://koufuku.jp/cdn/shop/files/2000000114170_2.jpg?v=1765161884&width=480)
![[Pre-owned] PT850/PT900 Ruby Pendant Necklace R0.31ct D0.13ct 5.0g](http://koufuku.jp/cdn/shop/files/2000000114071_2.jpg?v=1765161884&width=480)
![[Pre-owned] PT850 Necklace 20.9g](http://koufuku.jp/cdn/shop/files/2000000086125_2.jpg?v=1765161885&width=480)
![[Pre-owned] K14WG Garnet Necklace, includes Japan Jewelry Association sorting report, 2.8g](http://koufuku.jp/cdn/shop/files/2000000114040_3.jpg?v=1765161884&width=480)
![[Used] K18WG SAPPHIRE NECKLACE S57.00ct D1.10ct 38.7.0g](http://koufuku.jp/cdn/shop/files/2000000017945_2.jpg?v=1765161893&width=480)
![[Pre-owned] K18WG Madagascar Unheated Ruby Pendant Necklace R2.03ct D0.52ct, with GRS Certificate, 4.8g](http://koufuku.jp/cdn/shop/files/2000000042848_4.jpg?v=1765161893&width=480)
![[Pre-owned] K18 Ruby Ring, Mozambique Ruby Ring, R8.06ct D2.43ct, with GRS Certificate, 8.6g, Size 14](http://koufuku.jp/cdn/shop/files/2000000113876_3.jpg?v=1765161893&width=480)
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![[Pre-owned] K18YG Star Sapphire Ring SS1.56ct D0.52ct 8.7g #14](http://koufuku.jp/cdn/shop/files/2000000046945_2.jpg?v=1765161894&width=480)
![[Pre-owned] PT900 Diamond Ring D0.27ct 5.7g #10](http://koufuku.jp/cdn/shop/files/2000000009193_2.jpg?v=1765163848&width=480)
![[Pre-owned] K18YG RUBY RING R0.51ct D0.64ct 4.2g #16](http://koufuku.jp/cdn/shop/files/2000000116457_2.jpg?v=1765163849&width=480)
![[Pre-owned] Nahoko Omori K18WG Sapphire & Diamond Necklace, S5.18ct D1.10ct, 17.8g](http://koufuku.jp/cdn/shop/files/2000000108285_2.jpg?v=1765163848&width=480)
![[Pre-owned] Mitsuo Kaji K18/PT900 Enamel DIAMOND Ring D2.64ct 16.8g #14.5 BOX/Certificate ONE PRICE](http://koufuku.jp/cdn/shop/files/2000000067056_3.jpg?v=1765163849&width=480)
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![[Pre-owned] K18WG/PT900 Ruby Pendant Necklace R0.54ct D0.21ct 3.6g](http://koufuku.jp/cdn/shop/files/2000000014678_2.jpg?v=1765163848&width=480)
![[Pre-owned] K18WG DIAMOND Necklace D5.10ct 33.4g](http://koufuku.jp/cdn/shop/files/2000000003962_2.jpg?v=1765163849&width=480)
![[Pre-owned] PT900 SAPPHIRE Ring S1.10ct D0.33ct 4.9g #8](http://koufuku.jp/cdn/shop/files/2000000090375_2.jpg?v=1765163848&width=480)
![[Pre-owned] PT950 RUBY RING, Burmese Ruby R3.681ct, D2.33ct, GIA certified, 9.5g, Size #12](http://koufuku.jp/cdn/shop/files/2000000024141_3.jpg?v=1765163849&width=480)
![[Pre-owned] K18WG Shell Diamond Pendant Necklace D0.27ct 6.3g](http://koufuku.jp/cdn/shop/files/2000000038780_2.jpg?v=1765163849&width=480)
![[Pre-owned] PT900 Colombian Emerald Ring, E2.765ct D0.74ct, with GIA Report, 7.9g, #9](http://koufuku.jp/cdn/shop/files/2000000075556_3.jpg?v=1765163849&width=480)
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![[Pre-owned] PT900 Emerald Ring E1.80ct DIAMOND0.71ct 7.3g #12](http://koufuku.jp/cdn/shop/files/2000000077406_2.jpg?v=1765163849&width=480)
![[Pre-owned] PT850/PT900 Emerald Pendant Necklace E0.55ct D0.24ct 4.6g](http://koufuku.jp/cdn/shop/files/2000000090160_2.jpg?v=1765163849&width=480)
![[Pre-owned] K18YG Diamond Y-shape Pendant Necklace D0.50ct 8.2g](http://koufuku.jp/cdn/shop/files/2000000003207_2.jpg?v=1765175628&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)
