Gems, Jewelry and Precious Metals
Showing 578 products
![[Used] K18YG DIAMOND Ring D1.00 3.9g #11 Sorting](http://koufuku.jp/cdn/shop/files/73590_01.jpg?v=1743400609&width=480)
![[Used] K18YG DIAMOND Ring 0.412ct D0.25ct 3.8g #12 Sorting](http://koufuku.jp/cdn/shop/files/70704_01.jpg?v=1743400497&width=480)
![[Used] K18 DIAMOND Ring D0.53ct 2.5g #12](http://koufuku.jp/cdn/shop/files/70216_01.jpg?v=1743142006&width=480)
![[Used] K18WG SAPPHIRE Ring S0.27ct D0.28ct 5.2g #14](http://koufuku.jp/cdn/shop/files/81045_01.jpg?v=1743141936&width=480)
![[Used] PT900 SAPPHIRE ring S0.97ct D0.45ct 4.4g #11](http://koufuku.jp/cdn/shop/files/71992_01.jpg?v=1743141901&width=480)
![[Used] PT900 SAPPHIRE Ring S0.60ct D0.48ct 5.8g #9](http://koufuku.jp/cdn/shop/files/47980_01.jpg?v=1743141862&width=480)
![[Used] K18WG RUBY Ruby Ring R0.68ct D0.33ct 2.9g #14](http://koufuku.jp/cdn/shop/files/69036_01_c42127e3-11c8-40b2-8fad-527280ba9a89.jpg?v=1743141669&width=480)
![[Used] PT900 RUBY Ruby Ring R1.055ct D0.73ct 3.8g #13](http://koufuku.jp/cdn/shop/files/17495_01.jpg?v=1743141577&width=480)
![[Used] PT900 RUBY Ruby Ring R0.67ct D0.28ct 5.1g #12](http://koufuku.jp/cdn/shop/files/18829_01.jpg?v=1743141509&width=480)
![[Used] K18WG BLACK OPAL Black Opal Ring BO4.10ct D0.13ct 3.2g](http://koufuku.jp/cdn/shop/files/2000000045214_7.jpg?v=1741937635&width=480)
![[Used] K18WG SAPPHIRE sapphire ring S2.04ct D0.55ct 4.4g #12.5](http://koufuku.jp/cdn/shop/files/2000000043722_8.jpg?v=1741937169&width=480)
![[Used] K18WG CATS EYE Cat's Eye Ring CE4.05ct D0.33ct 5.1g #14](http://koufuku.jp/cdn/shop/files/2000000036519_7.jpg?v=1741936274&width=480)
![[Used] PT900 CATS EYE Cat's Eye Ring CE4.93ct D1.33ct 12.9g](http://koufuku.jp/cdn/shop/files/2000000018638_7.jpg?v=1751594976&width=480)
![[Used] Pt900 Emerald Ring E1.59ct D1.39ct 7.9g From the Muzo Mine in Colombia Comes with GRS Certificate](http://koufuku.jp/cdn/shop/files/2000000019840_9.jpg?v=1752729165&width=480)
![[Used] PT900 ALEXANDRITE ring A0.62ct D0.74ct 9.6g GIA certificate included Made in Brazil](http://koufuku.jp/cdn/shop/files/2000000014173_3.jpg?v=1741931451&width=480)
![[Used] PT900 BLACK OPAL Black Opal Ring BO3.20ct D1.78ct 12g #12.5](http://koufuku.jp/cdn/shop/files/2000000013916_3.jpg?v=1741930768&width=480)
![[Used] K18WG RUBY Ruby Ring R1.03ct D0.11 Pigeon Blood AIGS Certificate 2.2g](http://koufuku.jp/cdn/shop/files/2000000035895_3.jpg?v=1740381216&width=480)
![[Used] PT900 JADEITE jadeite ring J2.27ct D0.41ct with GGS sorting 6.3g #9.5](http://koufuku.jp/cdn/shop/files/2000000021942_3.jpg?v=1746157084&width=480)
![[Used] PT900 JADEITE jadeite ring J3.28ct D0.43ct Nihokyo sorting 8.9g #15.5](http://koufuku.jp/cdn/shop/files/2000000075372_3.jpg?v=1746157250&width=480)
![[Used] PT900 JADEITE jadeite ring J1.95ct D0.67ct GRJ sorting included 5.7g #10](http://koufuku.jp/cdn/shop/files/2000000011172_3.jpg?v=1746161116&width=480)
![[Used] PT900 JADEITE jadeite ring J4.04ct D0.06ct GRJ sorting included 11.3g #12](http://koufuku.jp/cdn/shop/files/2000000008622_3.jpg?v=1746161240&width=480)
![[Used] K18WG TOPAZ Blue Topaz Ring D0.690ct D1.00ct 16.1g #13](http://koufuku.jp/cdn/shop/files/2000000069661_2.jpg?v=1746161371&width=480)
![[Used] K18WG OPAL Opal Ring 1.06ct 0.08ct 2.1g #13.5](http://koufuku.jp/cdn/shop/files/2000000045535_2.jpg?v=1746161481&width=480)
![[Used] PT900 Tahiti Pearl Ring 10.7mm D0.23ct 6.8g #8](http://koufuku.jp/cdn/shop/files/2000000026343_2.jpg?v=1746161613&width=480)
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