Gems, Jewelry and Precious Metals
Showing 1707 products
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![[Pre-owned] 18K Yellow Gold Sapphire and Green Garnet Ring, S0.78ct, G0.45ct, D1.16ct, 10.7g, #13](http://koufuku.jp/cdn/shop/files/2000000121376_2.jpg?v=1766219023&width=480)
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![[Pre-owned] 18K Yellow Gold South Sea Pearl Ring, 12.3mm, 1.50ct, 17.8g, #13.5](http://koufuku.jp/cdn/shop/files/2000000056586_2.jpg?v=1766219022&width=480)
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![[Used] PT900 DIAMOND V-shaped diamond ring, D1.03ct, 5.5g, #11](http://koufuku.jp/cdn/shop/files/2000000126067_2.jpg?v=1766219023&width=480)
![[Used] PT900 DIAMOND Ring D0.27ct 9.1g #19](http://koufuku.jp/cdn/shop/files/2000000007199_2.jpg?v=1766219043&width=480)
![[Pre-owned] PT900 Diamond Men's Ring, D0.43ct, 18.9g, #17](http://koufuku.jp/cdn/shop/files/2000000106366_2.jpg?v=1766219043&width=480)
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![[Pre-owned] K18YG/PT900 White Opal Ring, OP 1.09ct, D 0.28ct, 7.7g, #14](http://koufuku.jp/cdn/shop/files/2000000037905_2.jpg?v=1766219054&width=480)
![[Used] PT900 Jadeite Jadeite Ring D0.35ct 6.5g #8.5](http://koufuku.jp/cdn/shop/files/2000000016665_2_4d7e3832-8d06-4d3f-9ee2-bd8a07e79e26.jpg?v=1766219119&width=480)
![[Used] PT900 DIAMOND Ring D0.44ct 15.1g #14](http://koufuku.jp/cdn/shop/files/2000000124421_2.jpg?v=1766219119&width=480)
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![[Used] PT900 BLACK OPAL Black Opal Ring, BO 3.45ct, D 0.62ct, 4.7g, #16.5](http://koufuku.jp/cdn/shop/files/2000000018195_2.jpg?v=1766219128&width=480)
![[Pre-owned] K18WG BLACK OPAL Black Opal Ring, BO 3.80ct, D 0.58ct, 5.4g, #12](http://koufuku.jp/cdn/shop/files/2000000069890_2.jpg?v=1766219128&width=480)
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![[Used] PT900 RUBY RING Ruby ring R0.56ct D0.08c t4.9g #11](http://koufuku.jp/cdn/shop/files/2000000117423_2.jpg?v=1766221258&width=480)
![[Used] K18WG DIAMOND Diamond Ring D1.95ct 7.1g #12](http://koufuku.jp/cdn/shop/files/2000000039015_2.jpg?v=1766221258&width=480)
SHOW YAMAGATA
Pre-owned SHOW YAMAGATA K18WG DIAMOND Ring, D0.25ct, 9.9g, Certificate of A[...]
$1,763.00
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![[Used] K18PG DIAMOND RING Diamond Ring D0.05ct 6.4g #16.5](http://koufuku.jp/cdn/shop/files/2000000112466_2.jpg?v=1766221259&width=480)
![[Used] PT900 Emerald Ring, E2.10ct, D0.50ct, D0.20ct, 7.5g, #8.5](http://koufuku.jp/cdn/shop/files/2000000127002_2.jpg?v=1766801414&width=480)
![[Used] PT900 Emerald Ring, E0.93ct, D0.76ct, CGL Sorting, 5.9g, #13, Handmade](http://koufuku.jp/cdn/shop/files/2000000125916_3.jpg?v=1766801414&width=480)
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![[Used] K18WG EMERALD RING with emeralds E2.23ct D0.53ct 4.8g #13.5](http://koufuku.jp/cdn/shop/files/2000000041827_2.jpg?v=1766801414&width=480)
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![[Pre-owned] PT900 SAPPHIRE Sapphire Ring, S2.564ct, D0.86ct, CGL Certificate, 15.0g, #13](http://koufuku.jp/cdn/shop/files/2000000016597_2.jpg?v=1766801414&width=480)
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Recommended Items![[Used] K18YG DIAMOND Ring D1.00 #11 Solitaire 3.9g](http://koufuku.jp/cdn/shop/files/2000000073590_8_04354e12-eb99-45f8-961b-74fbee55a5e7.jpg?v=1778745302&width=480)
![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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