Showing 1964 products
![[Pre-owned] PT900 NO HEAT PINK SAPPHIRE RING, Mozambique Origin, Non-heated Pink Sapphire Ring, PS3.105ct, D0.50ct, GIA Report, 8.1g, Size 12](http://koufuku.jp/cdn/shop/files/2000000018614_3.jpg?v=1768446384&width=480)
![[Pre-owned] K18WG Myanmar Ruby Ring, R1.31ct D0.67ct, AIGS Pigeon Blood, with certificate, 5.8g, size 13](http://koufuku.jp/cdn/shop/files/2000000091433_4.jpg?v=1768446384&width=480)
![[Pre-owned] PT900 JADEITE RING J1.78ct D0.30ct 5.5g #14](http://koufuku.jp/cdn/shop/files/2000000048970_2.jpg?v=1768446384&width=480)
![[Pre-owned] BUCCELLATI K18YG Diamond Bangle, DIA 23g, ONE PRICE](http://koufuku.jp/cdn/shop/files/2000000109862_2.jpg?v=1768446384&width=480)
![[Pre-owned] Pt900 DIAMOND RING 0.529ct G Color VS1 Class Very Good Cut CGL Sorting 4.4g #11](http://koufuku.jp/cdn/shop/files/2000000017549_2.jpg?v=1768446384&width=480)
![[Pre-owned] K18WG Boulder Opal, Pink Sapphire Ring O13.42ct PS0.86ct D0.27ct 10.0g #15](http://koufuku.jp/cdn/shop/files/2000000092607_2.jpg?v=1768446384&width=480)
![[Pre-owned] PT900 Mozambique Unheated Heart-Shaped Ruby Ring R1.02ct D0.32ct with GIA Report, 4.8g, Size 12](http://koufuku.jp/cdn/shop/files/2000000121642_3.jpg?v=1768444840&width=480)
![[Pre-owned] PT900 NO HEAT SAPPHIRE RING, Sri Lankan Unheated Sapphire, 5.36ct S, 0.80ct D, Royal Blue, with AIGS Certificate, 9.7g, Size 11](http://koufuku.jp/cdn/shop/files/2000000035284_3.jpg?v=1768444839&width=480)
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![[Pre-owned] PT900 SAPPHIRE RING Sapphire 9.14ct Diamond 1.30ct 16.2g #12](http://koufuku.jp/cdn/shop/files/2000000020952_2.jpg?v=1768444839&width=480)
![[Pre-owned] PT900 NO HEAT SAPPHIRE RING, Sri Lankan Unheated Sapphire 10.40ct, Diamond 2.91ct, GRS Certified, 19.8g, Size 12.5](http://koufuku.jp/cdn/shop/files/2000000078403_3.jpg?v=1768444839&width=480)
![[Pre-owned] PT950 NO HEAT RUBY RING Mozambique Untreated Ruby Ring R2.07ct D1.08ct GRS Certified 9.1g #12](http://koufuku.jp/cdn/shop/files/2000000090658_3.jpg?v=1768444839&width=480)
![[Pre-owned] TASAKI K18WG MABE PEARL PENDANT TOP P13.0mm D 0.10ct 5.6g ONE PRICE](http://koufuku.jp/cdn/shop/files/2000000020273_2.jpg?v=1768444839&width=480)
![[Pre-owned] K18WG NO HEAT RUBY RING Madagascar Unheated Ruby Ring R2.02ct D0.75ct Pigeon Blood AIGS Certificate 4.6g #13](http://koufuku.jp/cdn/shop/files/2000000070469_4.jpg?v=1768444839&width=480)
![[Pre-owned] PT900 SAPPHIRE RING S1.27ct D0.41ct CGL Sorting 6.6g #11](http://koufuku.jp/cdn/shop/files/2000000090474_3.jpg?v=1768444838&width=480)
![[Used] MIKIMOTO K18YG AKOYA PEARL BROOCH Akoya Pearl Brooch P7.2mm 2.9g ONE PRICE](http://koufuku.jp/cdn/shop/files/2000000010885_2.jpg?v=1768444838&width=480)
![[Pre-owned] K18WG Burmese Ruby Ring, R1.03ct, D1.70ct, Pigeon Blood, AIGS Certificate, 7.8g, Size 15.5](http://koufuku.jp/cdn/shop/files/2000000040592_3.jpg?v=1768444829&width=480)
![[Pre-owned] K18YG Myanmar RUBY RING Burmese Ruby Ring R1.13ct R1.03ct D0.74ct GIA Certified 8.9g #12](http://koufuku.jp/cdn/shop/files/2000000004556_5.jpg?v=1768444829&width=480)
![[Pre-owned] PT900 SAPPHIRE RING Sri Lankan Sapphire Ring S7.75ct D1.63ct GIA Report 12.5g #9](http://koufuku.jp/cdn/shop/files/2000000020006_3.jpg?v=1768444829&width=480)
![[Pre-owned] PT900 SAPPHIRE RING Sri Lankan Sapphire Ring S14.33ct D2.08ct GRS Certified 11.7g #10](http://koufuku.jp/cdn/shop/files/2000000070476_2.jpg?v=1768444829&width=480)
![[Pre-owned] PT950 NO HEAT SAPPHIRE RING, Sri Lankan, Unheated Sapphire, S6.95ct, D1.11ct, with GIA Report, 9.4g, Size 12](http://koufuku.jp/cdn/shop/files/2000000023168_4.jpg?v=1768444829&width=480)
![[Pre-owned] K18WG NO HEAT RUBY RING Mozambique Untreated Ruby Ring R2.07ct D1.48ct GRS Certified 6.6g #13.5](http://koufuku.jp/cdn/shop/files/2000000070506_3.jpg?v=1768444829&width=480)
![[Pre-owned] PT900/K18YG RUBY RING R1.16ct D1.64ct 8.0g #8](http://koufuku.jp/cdn/shop/files/2000000043456_2.jpg?v=1768444828&width=480)
![[Used] MIKIMOTO Mikimoto SV/K18YG AKOYA PEARL BROOCH Akoya Pearl Brooch P3.3-4.1mm 6.8g ONE PRICE](http://koufuku.jp/cdn/shop/files/2000000010663_2.jpg?v=1768444828&width=480)
![[Pre-owned] K18YG RUBY RING R0.52ct D0.23ct 2.7g #8](http://koufuku.jp/cdn/shop/files/2000000090245_2.jpg?v=1768444828&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)