Showing 1961 products
![[Pre-owned] K18WG Mozambique Unheated Ruby Ring R5.47ct D2.36ct 7.0g #11](http://koufuku.jp/cdn/shop/files/2000000034775_3.jpg?v=1765161863&width=480)
![[Pre-owned] K14WG/K18WG Mabe Pearl Pendant Necklace D0.02ct S0.04ct 10.1g](http://koufuku.jp/cdn/shop/files/2000000057163_2.jpg?v=1765161863&width=480)
![[Pre-owned] K18WG Sapphire Ring S6.22ct D1.68ct 9.5g #12.5](http://koufuku.jp/cdn/shop/files/2000000071039_2.jpg?v=1765161863&width=480)
![[Pre-owned] T&Co. Tiffany & Co. K18YG Spinel Ring 3.02ct, with GIA report, 5.5g, Size 5.5 (US 6), ONE PRICE](http://koufuku.jp/cdn/shop/files/DSC_2011_6a3760e7-5c58-4153-9123-b3c8719f0423.jpg?v=1775188816&width=480)
![[Pre-owned] K18YG Mabe Pearl Pendant Necklace 18.5mm 9.3g](http://koufuku.jp/cdn/shop/files/2000000044057_2.jpg?v=1765161797&width=480)
![[Pre-owned] GUCCI K18WG 72P Diamond Ring, 9.0g, Size 9, ONE PRICE](http://koufuku.jp/cdn/shop/files/2000000105390_2.jpg?v=1765161777&width=480)
![[Pre-owned] K14WG Ruby Necklace R9.21ct D1.04ct 20.1g](http://koufuku.jp/cdn/shop/files/2000000015606_2.jpg?v=1774690593&width=480)
![[Pre-owned] GUCCI K18WG Icon Ring 8.7g #11 ONE PRICE](http://koufuku.jp/cdn/shop/files/2000000027272_2.jpg?v=1765161777&width=480)
![[Pre-owned] K18YG EMERALD Necklace with sorting, 8.5g](http://koufuku.jp/cdn/shop/files/2000000115313_3.jpg?v=1765161777&width=480)
![[Pre-owned] KARATI K18WG CONCH PEARL Pendant Necklace 0.97ct D0.36ct with Appraisal 4.6g ONE PRICE](http://koufuku.jp/cdn/shop/files/2000000013213_3.jpg?v=1765161777&width=480)
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![[Pre-owned] TASAKI Akoya Pearl & Crystal Necklace 7.0-7.5mm 82.2g 116cm ONE PRICE N](http://koufuku.jp/cdn/shop/files/2000000043319_2.jpg?v=1765161777&width=480)
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![[Pre-owned] PT900 Black Opal Ring, BO1.06ct, D0.61ct, with GRJ Grading Report, 6.2g, Size 13](http://koufuku.jp/cdn/shop/files/2000000012704_3.jpg?v=1765161777&width=480)
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![[Pre-owned] PT850/PT900 AQUAMARINE Pendant Necklace AQ55.91ct D0.96ct 21.5g](http://koufuku.jp/cdn/shop/files/2000000097985_2.jpg?v=1765161777&width=480)
![[Pre-owned] K18WG Mozambican Unheated Ruby Ring R2.00ct D1.49ct with GRS Certificate, 6.4g, Size 13](http://koufuku.jp/cdn/shop/files/2000000068596_3.jpg?v=1765161777&width=480)
![[Pre-owned] PT850/PT900 DIAMOND Necklace, Diamond Pendant Necklace, 2.02ct, F Color, SI2 Clarity, Good Cut, CGL Sorting, 5.0g](http://koufuku.jp/cdn/shop/files/2000000115849_3.jpg?v=1765161777&width=480)
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![[Pre-owned] K18WG Colored Stone Necklace 13.647ct D1.08ct 60.6g](http://koufuku.jp/cdn/shop/files/2000000049076_2.jpg?v=1765161777&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] PT950 RUBY RING Mozambique Ruby Ring R3.064ct D1.60ct with GIA Report 6.4g #12](http://koufuku.jp/cdn/shop/files/2000000018911_3.jpg?v=1765161777&width=480)
![[Pre-owned] PT900/PT850 Diamond Pendant Necklace 0.429ct D0.41ct 4.3g](http://koufuku.jp/cdn/shop/files/2000000021973_2.jpg?v=1765161777&width=480)
![[Pre-owned] K18YG Coral Bead Necklace 4.5mm - 7.5mm D0.12ct 23.3g](http://koufuku.jp/cdn/shop/files/2000000097879_2.jpg?v=1765161777&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] K18WG South Sea Pearl Pendant Necklace P15.4mm D0.32ct 8.6g](http://koufuku.jp/cdn/shop/files/2000000015842_2.jpg?v=1765161777&width=480)
![[Pre-owned] PT850/PT900 Aquamarine Pendant Necklace, AQ2.13ct, D0.94ct, 34.8g](http://koufuku.jp/cdn/shop/files/DSC_6554.jpg?v=1771668126&width=480)
![[Pre-owned] K18YG Mabe Pearl Pendant Necklace 13.0mm-14.0mm D0.02ct 9.2g](http://koufuku.jp/cdn/shop/files/2000000112916_2.jpg?v=1765161777&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)