Showing 131 products
![[Used] 4℃ K18YG Peridot Pink Tourmaline Ring 3.3g #9.5](http://koufuku.jp/cdn/shop/files/2000000023076_2.jpg?v=1745124088&width=480)
![[Used] OMEGA K18WG My Choice Diamond Set Ring 15.2g #10.5](http://koufuku.jp/cdn/shop/files/2000000021065_2.jpg?v=1745123375&width=480)
![[Used] GUCCI 18WG Diamantissima Ring 4.9g #14](http://koufuku.jp/cdn/shop/files/2000000013572_2.jpg?v=1745122098&width=480)
![[Used] PT900 SAPPHIRE Sapphire Ring S0.37ct D0.30ct 3.4g #8](http://koufuku.jp/cdn/shop/files/2000000066516_2.jpg?v=1744892625&width=480)
![[Pre-owned] K18WG SAPPHIRE Sapphire Ring S1.30ct Mystery Setting 2.9g #16](http://koufuku.jp/cdn/shop/files/2000000031309_2.jpg?v=1750208031&width=480)
![[Used] PT900 SAPPHIRE Sapphire Ring S1.12ct D0.28ct 9.2g #11.5](http://koufuku.jp/cdn/shop/files/2000000018485_2.jpg?v=1744889949&width=480)
![[Used] PT900 RUBY Ruby Ring R1.05ct D0.45ct 6.8g #13 Made in Mozambique Comes with GIA Certificate of Origin](http://koufuku.jp/cdn/shop/files/2000000015392_3.jpg?v=1744859133&width=480)
![[Used] PT900/K18 SPINEL Red Spinel Ring RS0.762ct D0.94ct CGL Sorting 7.4g #10.5](http://koufuku.jp/cdn/shop/files/2000000005935_3.jpg?v=1744858305&width=480)
![[Used] JEUNET K18YG Green Garnet Ring GG0.59ct D0.56ct 6.3g #13](http://koufuku.jp/cdn/shop/files/2000000077284_2.jpg?v=1744610913&width=480)
![[Used] K18YG DIAMOND Diamond Ring D1.00 #11](http://koufuku.jp/cdn/shop/files/73590_01.jpg?v=1743400609&width=480)
![[Used] Pt900 Ruby Ring D0.15ct R0.17ct 10.2g #10.5](http://koufuku.jp/cdn/shop/files/13473_01_4ee0628a-3bc2-41b9-a004-efce4cc98be0.jpg?v=1743141413&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)
