Showing 1787 products
![[Pre-owned] K18WG Ruby Ring, Myanmar Origin, R1.07ct D1.21ct, Pigeon Blood, with AIGS Certificate, 5.3g, Size 13](http://koufuku.jp/cdn/shop/files/DSC_6537.jpg?v=1774689747&width=480)
![[Pre-owned] K18WG Heated Ruby Ring R1.27ct D0.39ct with AIGS Appraisal, 2.8g, Size 13](http://koufuku.jp/cdn/shop/files/2000000035840_3.jpg?v=1751698229&width=480)
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![[Pre-owned] K18WG Mozambique Unheated Ruby Ring, R2.03ct, D0.48ct, with AIGS Pigeon Blood Certificate, 4.5g, Size 12.5](http://koufuku.jp/cdn/shop/files/2000000070667_3.jpg?v=1764830277&width=480)
![[Pre-owned] K18WG Mozambique Unheated Ruby Ring R2.33ct D0.68ct GRS Certified 4.4g #12.5](http://koufuku.jp/cdn/shop/files/2000000043272_3.jpg?v=1764830277&width=480)
![[Pre-owned] K18WG Ruby Ring R6.03ct D3.63ct with GRS Certificate, 11.0g, Size #14](http://koufuku.jp/cdn/shop/files/2000000068954_3.jpg?v=1765159207&width=480)
![[Pre-owned] K18WG Unheated Ruby Ring R1.27ct D0.36ct with AIGS Pigeon Blood Certificate, 2.9g, Size 12](http://koufuku.jp/cdn/shop/files/2000000035949_4.jpg?v=1764830277&width=480)
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![[Pre-owned] K18WG Sapphire Ring, S1.04ct D0.25ct, with CGL Sorting, 4.8g, Size 16](http://koufuku.jp/cdn/shop/files/2000000124919_3.jpg?v=1768808620&width=480)
![[Pre-owned] K18WG Sapphire Ring S0.93ct D0.17ct 2.2g #11.5](http://koufuku.jp/cdn/shop/files/2000000036618_2.jpg?v=1752392569&width=480)
![[Pre-owned] K18WG Sapphire Ring S1.18ct D0.58ct 3.3g #12.5](http://koufuku.jp/cdn/shop/files/2000000094342_2.jpg?v=1760678193&width=480)
![[Pre-owned] K18WG SAPPHIRE Sapphire Ring S1.83ct D0.29ct 3.1g #12](http://koufuku.jp/cdn/shop/files/2000000036700_2.jpg?v=1760678193&width=480)
![[Pre-owned] K18WG Sri Lankan Unheated Sapphire Ring S2.78ct D1.00ct with GRS Certificate, 5.6g, Size #13](http://koufuku.jp/cdn/shop/files/DSC_7850.jpg?v=1775190729&width=480)
![[Pre-owned] K18WG South Sea Natural Golden Pearl Earrings (Convertible to Pierced Earrings) D0.37ct + S0.37ct 13.7g with Sorting Certificate](http://koufuku.jp/cdn/shop/files/2000000039732_3.jpg?v=1792052623&width=480)
![[Used] K18WG SOUTH SEA PEARL PENDANT NECKLACE White South Sea Pearl Pendant Necklace 9.5mm D0.25ct 4.6g](http://koufuku.jp/cdn/shop/files/2000000106205_2.jpg?v=1762391121&width=480)
![[Pre-owned] K18WG SOUTH SEA PEARL PENDANT NECKLACE White South Sea Pearl Pendant Necklace P12.5mm D1.26ct 37.6g](http://koufuku.jp/cdn/shop/files/2000000107615_4.jpg?v=1774845353&width=480)
![[Used] K18WG SOUTH SEA PEARL RING White South Sea Pearl Ring 14.0mm D0.06ct 11.5g #13](http://koufuku.jp/cdn/shop/files/2000000049786_3.jpg?v=1779437678&width=480)
![[Pre-owned] K18WG South Sea Pearl Ring 14mm 10.3g #12](http://koufuku.jp/cdn/shop/files/2000000038209_2.jpg?v=1765877331&width=480)
![[Used] K18WG STAR SAPPHIRE RING SS4.67ct D0.15ct 3.6g #13](http://koufuku.jp/cdn/shop/files/2000000050331_2.jpg?v=1760678193&width=480)
![[Pre-owned] K18WG Star Sapphire Ring, SS 2.632ct, D 0.22ct, 2.7g, Size 13.5](http://koufuku.jp/cdn/shop/files/2000000050409_2.jpg?v=1760678193&width=480)
![[Used] K18WG TAHITIAN PEARL BROOCH Tahitian Pearl Pendant Brooch P10.0 - 10.5mm D0.53ct 35.3g](http://koufuku.jp/cdn/shop/files/2000000049137_2.jpg?v=1768444693&width=480)
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![[Used] K18WG TOURMALINE NECKLACE Pink Tourmaline Pendant Necklace T2.00ct D0.30ct 3.8g](http://koufuku.jp/cdn/shop/files/2000000134109_2.jpg?v=1771816794&width=480)
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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] K18WG/K14WG OPAL DIAMOND BROOCH PENDANT Opal and Diamond Reversible Brooch/Pendant OP33.21ct M5.50 D0.62ct 34.4g](http://koufuku.jp/cdn/shop/files/2000000145075_2.jpg?v=1787905187&width=480)
![[Used] K18WG NO HEAT RUBY RING AIGS Pigeon Blood Certificate 1.03ct D0.29ct 1.9g #14](http://koufuku.jp/cdn/shop/files/2000000047867_4.jpg?v=1764830276&width=480)
![[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)