Showing 1787 products
![[Pre-owned] K18YG AKOYA PEARL RING, P6.4-8.4mm, D0.60ct, 25.2g](http://koufuku.jp/cdn/shop/files/2000000127293_2.jpg?v=1768808620&width=480)
![[Pre-owned] K18YG AKOYA PEARL Ring 6.5-7.5mm 6.8g #15.5](http://koufuku.jp/cdn/shop/files/2000000043104_2.jpg?v=1750401687&width=480)
![[Pre-owned] K18YG Akoya Pearl Ring 3.3mm-3.8mm 3.7g #9](http://koufuku.jp/cdn/shop/files/2000000099224_2.jpg?v=1765877331&width=480)
![[Pre-owned] K18YG AKOYA PEARL Ring 9.6mm 4.3g #13.5](http://koufuku.jp/cdn/shop/files/2000000099330_2.jpg?v=1765877331&width=480)
![[Pre-owned] 18K Yellow Gold Amethyst Ring, D0.04ct, 5.0g, Size 11.5](http://koufuku.jp/cdn/shop/files/2000000114309_2.jpg?v=1765012878&width=480)
![[Used] K18YG AQUAMARINE RING Aquamarine 11.66ct Sapphire 0.90ct Diamond 0.11ct 13.0g #15.5](http://koufuku.jp/cdn/shop/files/2000000123264_2.jpg?v=1779351671&width=480)
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![[Pre-owned] K18YG Black Opal Ring, 4.0g, Size 13.5](http://koufuku.jp/cdn/shop/files/DSC_2032.jpg?v=1775189269&width=480)
![[Used] K18YG BURMA NO HEAT SAPPHIRE RING Burma No-Heat Sapphire Ring S19.93ct D GRS Certification 17.5g #11.5](http://koufuku.jp/cdn/shop/files/2000000118970_3.jpg?v=1782367030&width=480)
![[Pre-owned] K18YG CATS EYE RING CE0.02ct 6.0g #8](http://koufuku.jp/cdn/shop/files/2000000128726_3.jpg?v=1771318579&width=480)
![[Pre-owned] K18YG CITRINE RING Citrine/Peridot/Amethyst Ring C8.60ct D1.55ct With JBS Sorting 12.1g #15](http://koufuku.jp/cdn/shop/files/2000000129891_3.jpg?v=1771313065&width=480)
![[Used] K18YG CORAL RING Carved Coral Ring 8.9g #10](http://koufuku.jp/cdn/shop/files/2000000111711_2.jpg?v=1771814674&width=480)
![[Pre-owned] K18YG CORAL Pendant Necklace 7.3mm 9.1g](http://koufuku.jp/cdn/shop/files/2000000078700_2.jpg?v=1762315996&width=480)
![[Pre-owned] K18YG Coral Necklace 5.6g](http://koufuku.jp/cdn/shop/files/2000000080185_2.jpg?v=1762315996&width=480)
![[Pre-owned] K18YG Coral Ring D0.04ct 9.6g #20](http://koufuku.jp/cdn/shop/files/2000000105161_2.jpg?v=1765877351&width=480)
![[Pre-owned] K18YG Coral Round Bead Ring 6.6mm 2.2g #](http://koufuku.jp/cdn/shop/files/2000000044927_2.jpg?v=1765877457&width=480)
![[Pre-owned] K18YG Demantoid Garnet Ring, G0.69ct, D0.70ct, with NGL Appraisal, 6.4g, Size 11.5](http://koufuku.jp/cdn/shop/files/2000000071909_3.jpg?v=1752392550&width=480)
![[Pre-owned] K18YG DIAMOND BRACELET 41.8g 18cm](http://koufuku.jp/cdn/shop/files/2000000146171_2.jpg?v=1787901672&width=480)
![[Pre-owned] K18YG DIAMOND EARRINGS D1.61ct 12.5g](http://koufuku.jp/cdn/shop/files/2000000147154_2.jpg?v=1792045567&width=480)
![[Pre-owned] K18YG DIAMOND EARRINGS 1.006ct/1.346ct 1.6g](http://koufuku.jp/cdn/shop/files/2000000107653_2.jpg?v=1792042982&width=480)
![[Pre-owned] K18YG DIAMOND NECKLACE D1.81ct D5.86ct 51.5g](http://koufuku.jp/cdn/shop/files/2000000081939_2.jpg?v=1771665042&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)