Showing 1961 products
![[Pre-owned] PT900 RUBY Ring R2.525ct D0.72ct #9 7.9g with CGL (Central Gem Laboratory) Sorting](http://koufuku.jp/cdn/shop/files/2000000011943_3.jpg?v=1744858149&width=480)
![[Pre-owned] Pt900 Burmese Unheated Ruby Ring, R2.09ct, D0.80ct, with GIA Origin Report and Appraisal, 6.9g, Size #12](http://koufuku.jp/cdn/shop/files/2000000022765_3.jpg?v=1744618053&width=480)
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![[Pre-owned] K18YG Green Tourmaline Ring, GT1.464ct, 5.2g, #14, with Identification Report](http://koufuku.jp/cdn/shop/files/2000000043449_3.jpg?v=1750926454&width=480)
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![[Pre-owned] 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)
![[Pre-owned] KABANA 18K Yellow Gold Shell/Onyx Diamond Ring #12.5 8g](http://koufuku.jp/cdn/shop/files/2000000012100_2.jpg?v=1778747398&width=480)
![[Pre-owned] Pt900 Natural Orange Pink Sapphire Ring, S2.13ct D0.94ct, 9.5g, Size 10.5, with GRS Report](http://koufuku.jp/cdn/shop/files/2000000082455_5.jpg?v=1750207998&width=480)
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![[Pre-owned] PT900 EMERALD V-Line Ring E0.60ct D0.10ct 4.8g #13.5](http://koufuku.jp/cdn/shop/files/2000000064994_8.jpg?v=1743409607&width=480)
![[Pre-owned] PT900 Emerald Ring E0.53ct D0.68ct 5.8g](http://koufuku.jp/cdn/shop/files/2000000021850_8.jpg?v=1752729165&width=480)
![[Pre-owned] PT900 JADEITE Ring, 4.49ct Jade, 1.75ct Diamond, 11.0g, Size 11](http://koufuku.jp/cdn/shop/files/2000000020518_8.jpg?v=1743409133&width=480)
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![[Pre-owned] PT900 Cat's Eye Ring, CE1.00ct, D0.50ct, 5.2g, Size 11](http://koufuku.jp/cdn/shop/files/2000000019109_8.jpg?v=1743408980&width=480)
![[Pre-owned] PT900 Cat's Eye Ring, CE 2.23ct, D 0.47ct, 6.9g, Size 20](http://koufuku.jp/cdn/shop/files/2000000018355_8.jpg?v=1743408775&width=480)
![[Pre-owned] PT900 CATS EYE Ring CE1.41ct D0.12ct 5.6g #13](http://koufuku.jp/cdn/shop/files/2000000017679_2.jpg?v=1743408565&width=480)
![[Pre-owned] PT900 JADEITE Ring J2.044ct D0.486ct 7.5g #16](http://koufuku.jp/cdn/shop/files/2000000016818_8.jpg?v=1748238748&width=480)
![[Pre-owned] PT900 Jade Ring J4.54ct D0.46ct 8.4g #12.5 with Identification Report](http://koufuku.jp/cdn/shop/files/2000000014609_8.jpg?v=1743407785&width=480)
![[Pre-owned] PT900 JADEITE Ring J1.79ct D0.53ct 5.6g #11](http://koufuku.jp/cdn/shop/files/2000000014456_8.jpg?v=1743407357&width=480)
![[Pre-owned] PT900 CAT'S EYE Ring CE1.52ct D1.35ct 9.2g #8](http://koufuku.jp/cdn/shop/files/2000000013749_8.jpg?v=1743407206&width=480)
![[Pre-owned] PT900 CATS EYE Ring CE1.49ct D0.52ct 7.7g #11](http://koufuku.jp/cdn/shop/files/2000000012230_8.jpg?v=1743406180&width=480)
![[Pre-owned] PT900 EMERALD Ring E0.60ct D0.70ct 6.4g #15](http://koufuku.jp/cdn/shop/files/2000000009247_2.jpg?v=1747801134&width=480)
![[Pre-owned] PT900 EMERALD Ring E0.48ct D0.39ct 4.9g #12](http://koufuku.jp/cdn/shop/files/2000000007724_8.jpg?v=1752729165&width=480)
![[Pre-owned] PT900 SAPPHIRE Unheated Sapphire Ring S1.04ct D0.26ct 6g GIA Origin Report](http://koufuku.jp/cdn/shop/files/2000000021751_3.jpg?v=1743403204&width=480)
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![[Pre-owned] PT900 PINK TOURMALINE Ring PT1.58ct D0.20ct 6.76g #12](http://koufuku.jp/cdn/shop/files/82431_01.jpg?v=1743142576&width=480)
![[Pre-owned] PT900 SAPPHIRE Ring S0.40ct D0.27ct #11](http://koufuku.jp/cdn/shop/files/21737_01.jpg?v=1743141710&width=480)
![[Pre-owned] 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 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] K18YG Diamond Ring 0.412ct D0.25ct #12](http://koufuku.jp/cdn/shop/files/70704_01.jpg?v=1743400497&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)