Gems, Jewelry, and Precious Metals
Showing 1929 products
![[Pre-owned] K18YG Diamond Pendant Necklace D1.00ct 2.8g](http://koufuku.jp/cdn/shop/files/2000000057217_2.jpg?v=1762391101&width=480)
![[Used] K18YG JADEITE RING Jade (Hisui) Ring J2.473ct D0.813ct with NIPPO KYOKAI Sorting 7.0g #7.5](http://koufuku.jp/cdn/shop/files/2000000039091_3.jpg?v=1762391102&width=480)
![[Pre-owned] MONNICKENDAM K18YG DIAMOND Ring, D0.54ct, 5.0g, Size #15 ONE PRICE](http://koufuku.jp/cdn/shop/files/2000000009353_2.jpg?v=1762391101&width=480)
MONNICKENDAM
[Pre-owned] MONNICKENDAM K18YG DIAMOND Ring, D0.54ct, 5.0g, Size #15 ONE PRICE
$1,290.00
![[Pre-owned] PT850/PT900 BLACK OPAL Pendant Necklace, BO9.41ct, D0.17ct, with Japan Jewelry Association (Nisseikyo) Sorting, 11.2g](http://koufuku.jp/cdn/shop/files/2000000018928_3.jpg?v=1762391103&width=480)
![[Pre-owned] K18YG DIAMOND Diamond Ring D0.97ct 11.0g #12.5](http://koufuku.jp/cdn/shop/files/2000000115252_2.jpg?v=1762391103&width=480)
![[Pre-owned] K18YG Jadeite Ring J2.54ct D1.00ct 7.2g #11.5](http://koufuku.jp/cdn/shop/files/2000000041001_2.jpg?v=1762391104&width=480)
![[Pre-owned] PT900 RUBY Ring R0.600ct D0.46ct 11.9g #11](http://koufuku.jp/cdn/shop/files/2000000115283_2.jpg?v=1762391102&width=480)
![[Pre-owned] K18YG Ruby & Diamond Ring 6.9g #9.5](http://koufuku.jp/cdn/shop/files/2000000043555_2.jpg?v=1762391102&width=480)
![[Pre-owned] K18YG Diamond Ring D2.03ct 6.8g #12](http://koufuku.jp/cdn/shop/files/2000000115269_2.jpg?v=1762391103&width=480)
![[Pre-owned] K18WG Emerald Cat's Eye Ring E0.95ct D0.42ct 3.0g #14](http://koufuku.jp/cdn/shop/files/2000000038384_2.jpg?v=1762391103&width=480)
![[Pre-owned] MIKIMOTO K18 Keshi Pearl 7-strand Necklace 27.1g ONE PRICE](http://koufuku.jp/cdn/shop/files/2000000072531_2.jpg?v=1762391102&width=480)
![[Pre-owned] K18YG JADEITE Ring with GRJ Sorting, 2.0g, Size 10](http://koufuku.jp/cdn/shop/files/2000000040455_3.jpg?v=1762391103&width=480)
![[Pre-owned] K18WG Unheated Color-Change Sapphire Ring S3.94ct D0.55ct with GRS Certificate, 4.6g, Size 14](http://koufuku.jp/cdn/shop/files/2000000089034_2.jpg?v=1762391103&width=480)
![[Pre-owned] K18WG Emerald Ring E6.03ct D0.60ct 4.8g #13.5](http://koufuku.jp/cdn/shop/files/2000000038827_2.jpg?v=1762391101&width=480)
![[Pre-owned] K18YG/Plated Amethyst Pearl Necklace 11.7g](http://koufuku.jp/cdn/shop/files/2000000079820_2.jpg?v=1762391103&width=480)
![[Pre-owned] K18WG Jadeite Ring J3.56ct D0.48ct 6.2g #15.5](http://koufuku.jp/cdn/shop/files/2000000044125_2.jpg?v=1762391104&width=480)
![[Pre-owned] 18K White Gold Jadeite Ring J11.99ct D0.37ct 7.4g #12.5](http://koufuku.jp/cdn/shop/files/2000000034577_2.jpg?v=1762391104&width=480)
![[Pre-owned] K18WG Emerald Ring E4.39ct D0.70ct 5.9g #14](http://koufuku.jp/cdn/shop/files/2000000042145_2.jpg?v=1762391103&width=480)
![[Pre-owned] K18WG Sri Lankan Unheated Sapphire Ring, S11.53ct D1.78ct, with GRS Royal Blue Certificate, 10.0g, Size 13](http://koufuku.jp/cdn/shop/files/2000000070445_4.jpg?v=1762391121&width=480)
![[Pre-owned] PT900 SAPPHIRE Ring S1.68ct D0.65ct 8.6g #8](http://koufuku.jp/cdn/shop/files/2000000090573_2.jpg?v=1762391121&width=480)
![[Used] K18WG SOUTH SEA PEARL PENDANT NECKLACE White South Sea Pearl Pendant Necklace 9.5mm D0.25ct 4.6g](http://koufuku.jp/cdn/shop/files/2000000106205_2.jpg?v=1762391121&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)
