Gems, Jewelry and Precious Metals
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![[Used] K18YG SOUTH SEA PEARL South Sea pearl ring 12.6mm 12.8mm 10.8mm 19.5g #12](http://koufuku.jp/cdn/shop/files/2000000071336_2.jpg?v=1746161988&width=480)
![[Used] K18YG MABE PEARL Mabe pearl ring 12mm 3.3g #7.5](http://koufuku.jp/cdn/shop/files/2000000080901_2.jpg?v=1746162083&width=480)
![[Used] K18YG Freshwater Pearl Ring 3.5mm-6.5mm D0.21ct 9.4g #10.5](http://koufuku.jp/cdn/shop/files/2000000042565_2.jpg?v=1746162128&width=480)
![[Used] K18YG/PT900 PEARL South Sea Baroque Pearl Ring 12.1mm D0.16ct 13.5g #14.5](http://koufuku.jp/cdn/shop/files/2000000071640_2.jpg?v=1746162159&width=480)
![[Used] PT900 TAHITIAN PEARL Tahitian pearl ring 11.0mm D0.56ct 9.6g #10](http://koufuku.jp/cdn/shop/files/2000000031217_2.jpg?v=1746171960&width=480)
![[Used] PT900 AKOYA PEARL Akoya pearl ring 9.2mm D 0.26ct 6.2g #13.5](http://koufuku.jp/cdn/shop/files/2000000026299_2.jpg?v=1746179569&width=480)
![[Used] PT850 AKOYA PEARL Akoya pearl ring 9.5mm D 0.18ct 7.7g #12 R](http://koufuku.jp/cdn/shop/files/2000000015248_2.jpg?v=1746180216&width=480)
![[Used] PT900 AKOYA PEARL Akoya pearl ring 8.6mm D0.17ct 5.8g #9.5](http://koufuku.jp/cdn/shop/files/2000000014357_2.jpg?v=1746180305&width=480)
![[Pre-owned] BVLGARI Bvlgari 18K White Gold Akoya Pearl Ring 8.5mm 8.8g #8.5 ONE PRICE](http://koufuku.jp/cdn/shop/files/2000000016405_2.jpg?v=1750208020&width=480)
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![[Used] TASAKI PT900 South Sea White Pearl Ring 12.0mm D0.11ct 11.2g #9.5](http://koufuku.jp/cdn/shop/files/2000000020136_2.jpg?v=1746180532&width=480)
![[Used] PT900 SOUTHSEAPEARL South Sea White Pearl Ring 14.5mm D0.12ct 17.5g #11 Central Gem Laboratory Sorting](http://koufuku.jp/cdn/shop/files/2000000015767_3.jpg?v=1746182933&width=480)
![[Used] PT900 RUBY Burmese ruby ring R1.54ct D0.71ct #12 GRS certificate included](http://koufuku.jp/cdn/shop/files/2000000082493_3.jpg?v=1746247300&width=480)
![[Used] PT900 RUBY Ruby Ring R0.20ct D0.86ct 6.7g #11](http://koufuku.jp/cdn/shop/files/2000000011196_2.jpg?v=1746249798&width=480)
![[Used] PT850 RUBY Ruby Ring R0.50ct D0.16ct Central Gem Laboratory Sorting 2.6g #12](http://koufuku.jp/cdn/shop/files/9902_01.jpg?v=1751706134&width=480)
![[Used] PT900 RUBY Ruby Ring R0.56ct D0.30ct 5.8g #8](http://koufuku.jp/cdn/shop/files/26640_01.jpg?v=1751706024&width=480)
![[Used] K18YG RUBY Ruby Ring R1.18ct D0.27ct 3.8g #5](http://koufuku.jp/cdn/shop/files/2000000043586_2.jpg?v=1746249845&width=480)
![[Used] PT900 RUBY Ruby Ring R1.21ct D0.57ct 8g #14](http://koufuku.jp/cdn/shop/files/70513_01.jpg?v=1751706107&width=480)
![[Used] PT900 SPINEL Red Spinel Ring RS2.75ct D0.63ct Central Gem Laboratory Identification 7.7g #12](http://koufuku.jp/cdn/shop/files/2000000069876_3.jpg?v=1746249870&width=480)
![[Pre-owned] K18YG RUBELLITE TOURMALINE RING, 1.69ct, D0.02ct, 5.2g, #12](http://koufuku.jp/cdn/shop/files/2000000069968_9.jpg?v=1746249882&width=480)
![[Used] K18YG RUBY Ruby Ring R1.30ct D0.90ct 7.0g #8](http://koufuku.jp/cdn/shop/files/2000000037875_2.jpg?v=1746252009&width=480)
![[Used] K18YG Ruby and Sapphire Ring R0.44ct S0.63ct D0.09ct NGL Certificate 4.1g #11](http://koufuku.jp/cdn/shop/files/2000000068701_3.jpg?v=1751002561&width=480)
![[Used] K18YG SAPPHIRE Sapphire Ring S0.46ct D0.46ct 4.1g #9.5](http://koufuku.jp/cdn/shop/files/2000000068718_2.jpg?v=1751002561&width=480)
![[Used] K18YG SAPPHIRE Sapphire Ring S1.42ct D0.92ct 7.2g #15](http://koufuku.jp/cdn/shop/files/2000000071770_2.jpg?v=1746252053&width=480)
![[Used] K18YG SAPPHIRE ring S0.73ct D0.38ct 7.0g #12](http://koufuku.jp/cdn/shop/files/2000000071961_2.jpg?v=1746252065&width=480)
KOUFUKU is an e-commerce site that handles a wide range of products, from jewelry and precious metals to brand bags, brand watches, brand apparel, and tableware. In addition to sales, we also offer a purchase service.
![[Used] PT900 SAPPHIRE RING Sapphire Ring S2.57ct D1.51ct 14.3g #15](http://koufuku.jp/cdn/shop/files/2000000071954_2.jpg?v=1768882396&width=480)
![[Pre-owned] MIKIMOTO PT950 ALEXANDRITE RING, A 0.42ct, D 0.62ct, 6.1g, #15, ONE PRICE](http://koufuku.jp/cdn/shop/files/2000000123844_3.jpg?v=1768882396&width=480)
