Showing 48 products
![[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)
![[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] 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] K18WG RUBY Ruby Ring R2.45ct D0.76ct Japan Gemstone Association Sorting 4.9g #12.5](http://koufuku.jp/cdn/shop/files/2000000071275_8.jpg?v=1748238748&width=480)
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![[Used] POLA K18YG Diamond Ring D0.38ct 5.4g #13](http://koufuku.jp/cdn/shop/files/2000000053110_2.jpg?v=1745900526&width=480)
![[Used] MAXI K18YG Diamond Ring D0.272ct D0.20ct #10 2.6g](http://koufuku.jp/cdn/shop/files/2000000011349_2.jpg?v=1745899726&width=480)
![[Used] TIFFANY & Co. Tiffany K18YG Diamond Open Heart Ring 4.1g #11](http://koufuku.jp/cdn/shop/files/2000000026596_2.jpg?v=1745899354&width=480)
![[Used] POLA K18YG Sapphire, Ruby, Emerald Ring S0.13ct R0.07ct E0.05ct D0.13ct 5.5g #12](http://koufuku.jp/cdn/shop/files/2000000052922_2.jpg?v=1745124569&width=480)
![[Used] CHAUMET K18WG CLASSONE Ring 8.1g #8](http://koufuku.jp/cdn/shop/files/2000000013374_2.jpg?v=1745121267&width=480)
![[Used] CARTIER K18YG Crash de Cartier Ring 9.5g #18.5](http://koufuku.jp/cdn/shop/files/2000000013244_2.jpg?v=1745120885&width=480)
![[Used] TASAKI K18WG Onyx/Shell DIAMOND Ring 0.28ct 0.13ct 11.8g #12](http://koufuku.jp/cdn/shop/files/2000000012780_2.jpg?v=1752770818&width=480)
![[Used] PT900 Burmese Ruby Ring R0.99ct D0.60ct #12 4.8g GIA Certificate of Origin](http://koufuku.jp/cdn/shop/files/2000000011691_3.jpg?v=1744949476&width=480)
![[Used] PT900 SAPPHIRE Ring S2.10ct D0.40ct 6.5g #12](http://koufuku.jp/cdn/shop/files/2000000000275_2.jpg?v=1744858472&width=480)
![[Used] PT900 RUBY Ruby Ring R2.525ct D0.72ct #9 7.9g Comes with Central Gem Laboratory sorting](http://koufuku.jp/cdn/shop/files/2000000011943_3.jpg?v=1744858149&width=480)
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![[Used] KABANA K18YG Shell/Onyx Diamond Ring #12.5 8g](http://koufuku.jp/cdn/shop/files/2000000012100_2.jpg?v=1744548224&width=480)
![[Used] Pt900 PINK SAPPHIRE Natural Orange Pink Sapphire Ring S2.13ct D0.94ct 9.5g #10.5 GRS Certificate](http://koufuku.jp/cdn/shop/files/2000000082455_5.jpg?v=1750207998&width=480)
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![[Used] K18 DIAMOND Ring D0.53ct 2.5g #12](http://koufuku.jp/cdn/shop/files/70216_01.jpg?v=1743142006&width=480)
![[Used] PT900 EMERALD ring E0.53ct D0.68ct 5.8g](http://koufuku.jp/cdn/shop/files/2000000021850_8.jpg?v=1752729165&width=480)
![[Used] PT900 PINK TOURMALINE Pink tourmaline ring PT1.58ct D0.20ct 6.76g #12](http://koufuku.jp/cdn/shop/files/82431_01.jpg?v=1743142576&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] TASAKI PT900 SAPPHIRE Ring S0.95ct D0.30ct 4.5g #11](http://koufuku.jp/cdn/shop/files/77260_01_d30ebf56-f36f-4ec5-a044-ce5a4bcd8ea0.jpg?v=1743141759&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)
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