Gems, Jewelry, and Precious Metals
Showing 1893 products
![[Pre-owned] Pt900 Aquamarine Ring A2.20ct D0.40ct 10.0g #12 with CGL Sorting](http://koufuku.jp/cdn/shop/files/2000000054551_8.jpg?v=1742268292&width=480)
![[Pre-owned] K18WG Sapphire Ring, S1.30ct, Mystery Setting, 2.9g, #16](http://koufuku.jp/cdn/shop/files/2000000031309_2.jpg?v=1750208031&width=480)
![[Pre-owned] PT900 SAPPHIRE Ring S2.10ct D0.40ct 6.5g #12](http://koufuku.jp/cdn/shop/files/2000000000275_2.jpg?v=1744858472&width=480)
![[Pre-owned] K18YG Ruby Ring R1.81ct D1.40ct with GRJ Sorting 15.1g #13](http://koufuku.jp/cdn/shop/files/2000000069715_8.jpg?v=1745911847&width=480)
![[Pre-owned] PT900 RUBY Ruby Ring R0.43ct R0.34ct D0.21ct 7g #12.5](http://koufuku.jp/cdn/shop/files/86019_01.jpg?v=1751706059&width=480)
![[Pre-owned] K18WG Ruby Ring, R2.45ct D0.76ct, Japan Jewelry Association Sorting, 4.9g, Size #12.5](http://koufuku.jp/cdn/shop/files/2000000071275_8.jpg?v=1748238748&width=480)
![[Pre-owned] K18WG Ruby Mystery Setting Ring, R5.30ct, D1.10ct, 11.6g, Size 12](http://koufuku.jp/cdn/shop/files/2000000084435_2.jpg?v=1745911148&width=480)
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![[Pre-owned] PT850 Ruby Ring, R0.90ct D0.84ct, with GGS Certificate, 6.3g, Size 15](http://koufuku.jp/cdn/shop/files/2000000071077_2.jpg?v=1745909490&width=480)
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![[Pre-owned] PT900 RUBY Ring R0.54ct D0.35ct with Identification Report 4.9g #6.5](http://koufuku.jp/cdn/shop/files/2000000070537_3.jpg?v=1745909411&width=480)
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![[Pre-owned] PT900 Ruby Ring R0.52ct D0.51ct #8 5.5g](http://koufuku.jp/cdn/shop/files/70933_01.jpg?v=1751706081&width=480)
![[Used] K18YG RUBY RING R0.55ct D0.52ct 5.4g #13](http://koufuku.jp/cdn/shop/files/2000000071374_2.jpg?v=1745908638&width=480)
![[Pre-owned] PT900 Alexandrite Ring A0.22ct D0.50ct with CGL Sorting, 6.7g, Size 12](http://koufuku.jp/cdn/shop/files/2000000068572_2.jpg?v=1745901847&width=480)
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![[Pre-owned] PT900 Chrysoberyl Cat's Eye Ring, CE2.51ct, D0.32ct, CGL Sorting, 4.8g, Size 10.5](http://koufuku.jp/cdn/shop/files/2000000019123_3.jpg?v=1745901753&width=480)
![[Pre-owned] PT900 Diamond Ring 0.613ct F SI2 Good, with CGL Sorting, 4.5g, Size 11](http://koufuku.jp/cdn/shop/files/2000000012544_3.jpg?v=1750143322&width=480)
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![[Pre-owned] K18YG Garnet Ring, G11.42ct, D0.72ct, includes Gem Research Japan sorting, 14.6g, size 14](http://koufuku.jp/cdn/shop/files/2000000073583_2.jpg?v=1745901557&width=480)
![[Pre-owned] PT900 Ruby Unheated Ruby Ring R1.297ct D0.832ct R0.643ct with GIA Report 10.9g](http://koufuku.jp/cdn/shop/files/2000000068664_3.jpg?v=1744950753&width=480)
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![[Pre-owned] PT900 Burmese Ruby Ring R0.99ct D0.60ct #12 4.8g with GIA Origin Report](http://koufuku.jp/cdn/shop/files/2000000011691_3.jpg?v=1744949476&width=480)
![[Pre-owned] PT900 SAPPHIRE Sapphire Ring S0.37ct D0.30ct 3.4g #8](http://koufuku.jp/cdn/shop/files/2000000066516_2.jpg?v=1744892625&width=480)
![[Pre-owned] K18WG Green Garnet Ring GG0.45ct D0.25ct 5.2g #12](http://koufuku.jp/cdn/shop/files/2000000075143_2.jpg?v=1744892545&width=480)
![[Pre-owned] K18 Green Garnet Ring GG2.08ct D0.50ct 6.4g #12](http://koufuku.jp/cdn/shop/files/2000000070698_2.jpg?v=1744890572&width=480)
![[Pre-owned] PT900 SAPPHIRE Sapphire Ring S1.12ct D0.28ct 9.2g #11.5](http://koufuku.jp/cdn/shop/files/2000000018485_2.jpg?v=1744889949&width=480)
![[Pre-owned] PT900/K18 Spinel Red Spinel Ring RS0.762ct D0.94ct CGL Sorting 7.4g #10.5](http://koufuku.jp/cdn/shop/files/2000000005935_3.jpg?v=1744858305&width=480)
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おすすめの商品![[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)
