Showing 1787 products
![[Pre-owned] PT900 No-Heat Sri Lankan Sapphire Ring, S14.73ct D0.94ct, GIA Certified, 14.7g](http://koufuku.jp/cdn/shop/files/2000000064055_5.jpg?v=1768808620&width=480)
![[Pre-owned] PT900 NO-HEAT RUBY RING, Heart-shaped unheated ruby ring R2.01ct D1.08ct, with GRS/AIGS certificates, 5.7g, size 13.5](http://koufuku.jp/cdn/shop/files/2000000071718_4.jpg?v=1785997642&width=480)
![[Used] PT900 NO-HEAT PAPARACIA SAPPHIRE RING, Unheated Padparadscha Sapphire Ring, PS1.40ct D0.516ct, GRS Certificate, 5.9g, #11](http://koufuku.jp/cdn/shop/files/2000000071343_3.jpg?v=1752392572&width=480)
![[Pre-owned] PT900 NO-HEAT RUBY RING "Pigeon Blood" Mozambique Unheated Ruby Ring R2.01ct D0.76ct with GRS "Pigeon Blood" Certificate, 6.4g, Size 11](http://koufuku.jp/cdn/shop/files/2000000119052_4.jpg?v=1785996291&width=480)
![[Used] PT900 NON-HEATED RUBY RING R1.43ct D0.41ct GRS Certificate 6.4g #12](http://koufuku.jp/cdn/shop/files/2000000082394_3.jpg?v=1777280485&width=480)
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![[Pre-owned] PT900 Mexican Opal Cat's Eye Ring, OC1.10ct D0.33ct, with appraisal report, 5.1g, size 12.5](http://koufuku.jp/cdn/shop/files/2000000026893_3.jpg?v=1766219023&width=480)
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![[Pre-owned] PT900 Opal Cat's Eye Ring, OC3.94ct, D0.44ct, 9.0g, Size 11.5](http://koufuku.jp/cdn/shop/files/2000000103600_2.jpg?v=1766219022&width=480)
![[Used] PT900 OPAL RING Opal Ring OP1.35ct D0.12ct 5.3g #14](http://koufuku.jp/cdn/shop/files/2000000082837_2.jpg?v=1763175991&width=480)
![[Pre-owned] PT900 Opal Ring OP2.49ct D0.60ct 10.1g #15.5](http://koufuku.jp/cdn/shop/files/2000000011332_2.jpg?v=1760667250&width=480)
![[Pre-owned] PT900 Opal Ring OP9.59ct 12.2g #11.5](http://koufuku.jp/cdn/shop/files/2000000029610_2.jpg?v=1766219023&width=480)
![[Pre-owned] PT900 Opal Ring OP2.89ct D0.63ct 9.8g #8](http://koufuku.jp/cdn/shop/files/2000000014968_2.jpg?v=1763176025&width=480)
![[Pre-owned] PT900 ORANGE SAPPHIRE RING S0.28ct D0.25ct CGL Sorting 3.6g #13](http://koufuku.jp/cdn/shop/files/2000000018836_3.jpg?v=1768882395&width=480)
![[Pre-owned] PT900 Unheated Padparadscha Sapphire Ring 0.989ct D0.43ct GRS/GIA Certified 5.9g #11](http://koufuku.jp/cdn/shop/files/2000000012360_7.jpg?v=1765877430&width=480)
![[Pre-owned] PT900 PARAIBA TOURMALINE RING Brazilian Paraiba Tourmaline Ring PT0.509ct D0.67ct CGL Identification/Analysis Report 9.1g #11](http://koufuku.jp/cdn/shop/files/2000000019284_3.jpg?v=1771658188&width=480)
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![[Used] PT900 PARAIBA TOURMALINE RING Paraiba Tourmaline Ring from Brazil PT14.94ct D1.215ct with GRS/CGL appraisal report 16.5g #11.5](http://koufuku.jp/cdn/shop/files/2000000073354_4.jpg?v=1782371066&width=480)
![[Pre-owned] PT900 Paraiba Tourmaline Ring, PT0.26ct, D0.33ct, with CGL Appraisal, 3.7g, Size 11](http://koufuku.jp/cdn/shop/files/2000000025544_3.jpg?v=1762397786&width=480)
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![[Pre-owned] PT900 Keshi Pearl 18-strand Necklace D0.07ct 60.0g](http://koufuku.jp/cdn/shop/files/2000000016627_2.jpg?v=1768197670&width=480)
![[Pre-owned] PT900 White South Sea Pearl Ring 10.3mm D0.19ct 7.0g #14](http://koufuku.jp/cdn/shop/files/2000000106816_2.jpg?v=1762391138&width=480)
![[Pre-owned] PT900 White South Sea Pearl Ring 10.0mm D0.13ct 7.7g #12.5](http://koufuku.jp/cdn/shop/files/2000000094144_2.jpg?v=1750472222&width=480)
![[Pre-owned] PT900 Peridot Ring P2.40ct D0.06ct with Appraisal Report, 7.0g, Size 19](http://koufuku.jp/cdn/shop/files/2000000120911_3.jpg?v=1767585997&width=480)
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![[Pre-owned] PT900 Peridot Ring P2.31ct D0.35ct 8.5g #12.5](http://koufuku.jp/cdn/shop/files/2000000013701_2.jpg?v=1752392529&width=480)
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![[Pre-owned] PT900 PINK SAPPHIRE EARRINGS PS3.968ct / PS3.648ct with GRS Certificate, 10.6g](http://koufuku.jp/cdn/shop/files/2000000151267_4.jpg?v=1791798740&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)