Gems, Jewelry and Precious Metals
Showing 1707 products
![[Pre-owned] PT900 BLACK OPAL Black Opal Ring, BO 4.65ct, D 0.34ct, 11.6g, #15](http://koufuku.jp/cdn/shop/files/2000000043142_2.jpg?v=1763175991&width=480)
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![[Pre-owned] PT900 BLACK OPAL Black Opal Ring, 0.70ct Bore, 0.25ct Drill, 5.1g, #14](http://koufuku.jp/cdn/shop/files/2000000068565_2.jpg?v=1763175991&width=480)
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![[Used] PT900 BLACK OPAL Black Opal Ring, 6.70ct Bore, 0.185ct Drill, 7.2g, #13](http://koufuku.jp/cdn/shop/files/2000000093949_2.jpg?v=1763175991&width=480)
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![[Used] PT900 OPAL RING Opal Ring OP1.35ct D0.12ct 5.3g #14](http://koufuku.jp/cdn/shop/files/2000000082837_2.jpg?v=1763175991&width=480)
![[Pre-owned] K18WG CATS EYE Chrysoberyl Cat's Eye Ring, CE 2.32ct, D 0.91ct, 6.1g, #13](http://koufuku.jp/cdn/shop/files/2000000034478_2.jpg?v=1763175991&width=480)
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![[Used] PT900 BLACK OPAL Black Opal Ring, BO4.47ct, D0.53ct, 11.0g, 14.5](http://koufuku.jp/cdn/shop/files/2000000098845_2.jpg?v=1763175991&width=480)
![[Pre-owned] NINA RICCI K18WG MULTI Multi-Stone Pendant Necklace 6.7g One Price](http://koufuku.jp/cdn/shop/files/2000000024875_3.jpg?v=1763176253&width=480)
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![[Pre-owned] PT900 Cat's Eye Chrysoberyl Cat's Eye Ring, CE 1.46ct, D 0.65ct, 7.4g, #11](http://koufuku.jp/cdn/shop/files/2000000018157_2.jpg?v=1763175991&width=480)
![[Used] PT900 Diamond Ring, D0.25ct, 5.4g, #12.5, Certified](http://koufuku.jp/cdn/shop/files/2000000106359_3.jpg?v=1763175991&width=480)
![[Pre-owned] PT900 BLACK OPAL Black Opal Ring, 6.93ct Bore, 1.45ct Diameter, 12.1g, #17](http://koufuku.jp/cdn/shop/files/2000000013503_2.jpg?v=1763175991&width=480)
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![[Pre-owned] 18K Yellow Gold Opal Pendant Necklace, 18.4ct, 8.7g, with sorting](http://koufuku.jp/cdn/shop/files/2000000074603_3.jpg?v=1763175991&width=480)
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![[Used] Mitsukoshi Department Store PT900 Diamond Ring D0.50ct 4.0g #8](http://koufuku.jp/cdn/shop/files/DSC_2050.jpg?v=1775189628&width=480)
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![[Used] K18WG DIAMOND Diamond Ring 7.0g #8.5](http://koufuku.jp/cdn/shop/files/2000000042039_2.jpg?v=1763176024&width=480)
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![[Pre-owned] K18WG DIAMOND pendant necklace D1.08ct 6.3g](http://koufuku.jp/cdn/shop/files/2000000021317_2.jpg?v=1763176024&width=480)
![[Pre-owned] K18WG Emerald Ring, E2.18ct, D0.55ct, 4.4g, #13.5](http://koufuku.jp/cdn/shop/files/2000000044101_2.jpg?v=1763176025&width=480)
![[Used] PT900 OPAL Opal Ring, OP 2.89ct, D 0.63ct, 9.8g, #8](http://koufuku.jp/cdn/shop/files/2000000014968_2.jpg?v=1763176025&width=480)
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![[Used] PT900 DIAMOND Ring 0.356ct D0.10 3g #11](http://koufuku.jp/cdn/shop/files/2000000112725_2.jpg?v=1763176025&width=480)
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![Used] K18YG ENAMEL PENDANT NECKLACE 13.4g](http://koufuku.jp/cdn/shop/files/2000000134116_2.jpg?v=1778489330&width=480)
![[Used] PT1000/PT900 BLACK OPAL NECKLACE Black Opal Pendant Necklace BO7.57ct D1.34ct 10.7g](http://koufuku.jp/cdn/shop/files/2000000112718_2.jpg?v=1771816794&width=480)
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