[On sale at 22:00 on 3/30] Myanmar bicolor paudretteite 1.960ct loose stone
Sale price¥1,000,000
[On sale 3/8 at 22:00] Unheated royal blue sapphire 0.490ct loose stone
Sale price¥128,000
Brazilian Paraiba Tourmaline Ring and Half Eternity Ring Set (1.2mm)
Sale price¥188,000
[On sale 2/11 at 10pm] American Benitoite 0.286ct loose stone
Sale price¥158,000
Colombian pyrite in emerald 15.291ct loose
Sale price¥1,000,000
Colombian emerald rough stone 37.764ct (Gachala mine)
Sale price¥598,000
Zimbabwe Bicolor Euclase 0.405ct Loose Stone by Nikkei
Sale price¥298,000
Myanmar Podretteite 0.407ct loose stone [Gemstone Encyclopedia]
Sale price¥128,000
13-stone diamond half eternity ring set (VS class, D-G color, H&C, 2.0mm)
Sale price¥158,000
Madagascar Bekiri Blue Garnet 13-stone half eternity ring set (2.0mm)
Sale price¥128,000
Tanzanian Almandine Garnet 34.581ct Loose Stone
Sale price¥158,000
Pt900 Kashmir unheated sapphire 1.14ct / diamond 0.70ct ring GIA
Sale price¥1,580,000
Brazilian Green Tourmaline 42.854ct Loose Stone
Sale price¥198,000
Tanzania Color Change Chrome Tourmaline 13.194ct Loose Stone Chuhokan
Sale price¥398,000
Pt900 Colombian emerald 0.72ct, diamond 0.61ct ring
Sale price¥158,000
Brazilian Rubellite (Red Tourmaline) 3.844ct Loose Stone
Sale price¥128,000
Brazilian Bicolor Tourmaline 16.088ct Loose (Tricolor) Nikkei
Sale price¥298,000
[E_27 Yurakucho Marui Take-out] Russian Oil-Free Emerald 0.640ct Loose GIA
Sale price¥198,000
American Wulfenite 2.610ct loose stone
Sale price¥298,000
Brazilian bicolor tourmaline cat's eye 22.056ct loose stone
Sale price¥198,000
Congo Bicolor Tourmaline 3.429ct Loose
Sale price¥128,000
Brazilian Bicolor Pink Euclase 0.236ct Loose Stone, Japan-Germany
Sale price¥128,000
[E_27 Yurakucho Marui Take-out] Myanmar Podrettite 0.834ct loose stone
Sale price¥298,000
Non-Oil Emerald 1.030ct Loose Gübelin Gübelin Certificate
Sale price¥698,000
Russian diamond rough (sawable) 0.509ct rough (trigon)
Sale price¥168,000
K18YG Brazilian Paraiba Tourmaline 0.30ct Diamond Ring GIA
Sale price¥198,000
K18YG Unheated Padparadscha Sapphire 0.61ct Ruby Blue Sapphire Ring GIA
Sale price¥198,000

Why not take your favorite gemstone that you found at KARATZ and have it made into custom-made jewelry? It will be made by skilled Japanese craftsmen.
We carefully craft each piece of jewelry, starting with the stone setting, to match the individual characteristics of the gemstone.

The fifth reprint has been decided and is now on sale at bookstores nationwide and online.
Written by KARATZ, book “Jewelry Illustrated Book”
The book provides explanations about over 300 types of gemstones, from new standard birthstones to rare stones that are hard to find, as well as a diary of our company representative, Mr. Koyama's, gemstone shopping experience in Thailand and Sri Lanka, and tips for photographing gemstones, allowing you to learn about the appeal of gemstones from various perspectives.