Showing 1787 products
![[Pre-owned] K18YG RUBY RING R0.80ct D0.18ct 4.1g](http://koufuku.jp/cdn/shop/files/2000000115566_2.jpg?v=1768185890&width=480)
![[Pre-owned] K18YG RUBY RING R0.84ct D0.60ct with Appraisal Report 7.5g #12.5](http://koufuku.jp/cdn/shop/files/2000000115528_3.jpg?v=1771658188&width=480)
![[Pre-owned] K18YG RUBY RING R0.875ct D1.30ct 7.5g #15](http://koufuku.jp/cdn/shop/files/2000000038308_2.jpg?v=1771665153&width=480)
![[Pre-owned] K18YG RUBY RING R1.08ct R1.28ct D0.80ct 8.2g #12](http://koufuku.jp/cdn/shop/files/2000000130149_2.jpg?v=1771658188&width=480)
![[Pre-owned] K18YG Ruby Ring R1.09ct R0.49ct D0.98ct 10.1g #12](http://koufuku.jp/cdn/shop/files/2000000038056_2.jpg?v=1768444653&width=480)
![[Pre-owned] K18YG RUBY RING R1.15ct D0.45ct 7.3g #12](http://koufuku.jp/cdn/shop/files/2000000040165_2.jpg?v=1777281913&width=480)
![[Pre-owned] K18YG Ruby Ring R1.15ct D0.60ct 11.2g #12](http://koufuku.jp/cdn/shop/files/2000000039718_2.jpg?v=1771665668&width=480)
![[Used] K18YG Ruby Ring R1.18ct D0.52ct CGL Sorting 6.6g #10](http://koufuku.jp/cdn/shop/files/2000000121611_3.jpg?v=1771814807&width=480)
![[Pre-owned] K18YG RUBY RING R1.50ct D0.23ct 5.0g #12](http://koufuku.jp/cdn/shop/files/DSC_6320.jpg?v=1771668456&width=480)
![[Pre-owned] K18YG RUBY RING R1.87ct with Appraisal Certificate, 6.3g, Size 12.5](http://koufuku.jp/cdn/shop/files/DSC_3923.jpg?v=1769670683&width=480)
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![[Used] K18YG RUBY RING Ruby Ring R2.19ct D0.26ct 7.6g #12.5](http://koufuku.jp/cdn/shop/files/2000000075082_2.jpg?v=1749178071&width=480)
![[Pre-owned] K18YG Ruby Ring R3.00ct D1.19ct with CGL Sorting, 7.8g, Size 14](http://koufuku.jp/cdn/shop/files/2000000029306_2.jpg?v=1768444692&width=480)
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![[Used] K18YG RUBY RING Ruby Ring R6.07ct D0.60ct 14.1g #15.5](http://koufuku.jp/cdn/shop/files/2000000134635_2.jpg?v=1779436533&width=480)
![[Pre-owned] K18YG Ruby & Diamond Ring R0.54ct D0.87ct 8.5g #11.5](http://koufuku.jp/cdn/shop/files/2000000121352_2.jpg?v=1768185637&width=480)
![[Pre-owned] K18YG Ruby & Diamond Ring R0.79ct D0.13ct 3.5g #10](http://koufuku.jp/cdn/shop/files/2000000126289_2.jpg?v=1767585980&width=480)
![[Pre-owned] K18YG RUBY RING R0.51ct D0.64ct 4.2g #16](http://koufuku.jp/cdn/shop/files/2000000116457_2.jpg?v=1765163849&width=480)
![[Pre-owned] K18YG Ruby Ring R1.44ct D0.35ct with Appraisal Certificate, 8.4g, Size 11](http://koufuku.jp/cdn/shop/files/2000000110585_3.jpg?v=1765161777&width=480)
![[Pre-owned] K18YG RUBY SAPPHIRE Ring R0.70ct S0.70ct D1.00ct 9.0g #14.5](http://koufuku.jp/cdn/shop/files/2000000069265_2.jpg?v=1765175887&width=480)
![[Pre-owned] K18YG Ruby/Sapphire Ring, Heart Ruby/Sapphire Ring, R0.74ct S0.66ct D0.59ct, 4.2g, #8.5](http://koufuku.jp/cdn/shop/files/2000000128627_2.jpg?v=1771053914&width=480)
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![[Pre-owned] K18YG Ruby Ring R0.65ct 5.8g #13.5](http://koufuku.jp/cdn/shop/files/2000000044200_2.jpg?v=1749178071&width=480)
![[Pre-owned] K18YG Ruby Ring R1.25ct D0.48ct, includes mini appraisal certificate, 4.5g, size 7.5](http://koufuku.jp/cdn/shop/files/2000000064505_3.jpg?v=1749178071&width=480)
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![[Pre-owned] K18YG Ruby Ring 6.6g #8](http://koufuku.jp/cdn/shop/files/2000000078335_2.jpg?v=1746252745&width=480)
KOUFUKU is an e-commerce site that offers a wide range of products, including jewelry, precious metals, designer bags, designer watches, designer apparel, and tableware. In addition to retail sales, we also provide purchase services.
![[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)