Pt900 Kashmir unheated sapphire 1.14ct / diamond 0.70ct ring GIA
Sale price¥1,580,000
Madagascar Padparadscha Sapphire 0.310ct Loose GIA
Sale price¥49,800
[E_27 Yurakucho Marui Take-out] Russian Oil-Free Emerald 0.640ct Loose GIA
Sale price¥198,000
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
Brazilian Paraiba Tourmaline 0.230ct Loose GIA (CuO: 0.9%, MnO: 1.1%)
Sale price¥158,000
K18PG Brazilian Paraiba Tourmaline 0.286ct Grandidierite Ring GIA
Sale price¥198,000
Colombian oil-free emerald 0.290ct loose stone GIA
Sale price¥198,000
Brazilian Paraiba Tourmaline 0.360ct Loose GIA
Sale price¥298,000
[E_27 Yurakucho Marui Take-out] Non-Oil Emerald 1.370ct Loose GIA
Sale price¥1,580,000
Brazilian Paraiba Tourmaline 0.405ct loose stone (CuO2.7% CuO2.2%) GIA
Sale price¥198,000
Unheated Bicolor Paraiba Tourmaline 0.092ct Loose GIA
Sale price¥188,000
[E_27 Yurakucho Marui Take-out] Colombian Oil-free Emerald 0.220ct Loose GIA
Sale price¥248,000
Paraiba tourmaline from Brazil 0.34ct loose GIA
Sale price¥59,800
Brazilian Alexandrite 0.35ct Ruth (Hemachita Mine) GIA
Sale price¥158,000
[E_27 Yurakucho Marui Take-out] Royal Blue Sapphire 1.44ct Loose GIA
Sale price¥188,000
Brazilian particolor Paraiba tourmaline 0.26ct loose GIA
Sale price¥598,000
Non-oil red beryl 0.21ct loose GIA
Sale price¥198,000
[E_27 Yurakucho Marui Take-out] Unheated Sapphire 2.430ct Loose GIA
Sale price¥298,000
Non-oil red beryl 0.200ct loose GIA
Sale price¥188,000
Ruby from Burma 3.72ct loose GIA
Sale price¥198,000
Ethiopian oil-free emerald 0.32ct loose GIA
Sale price¥148,000
[E_27 Yurakucho Marui Take-out] Russian Oil-Free Emerald 0.840ct Loose GIA
Sale price¥248,000
Russian oil-free emerald 0.570ct loose with GIA
Sale price¥258,000
Unheated Bicolor Paraiba Tourmaline 0.105ct Loose GIA
Sale price¥198,000
Vietnam Pink Sapphire 1.690ct Loose GIA
Sale price¥88,000
【4/4 22時販売】非加熱コバルトスピネル（コバルトブルースピネル） 0.740ctルース（シールドカット） GIA
Sale price¥59,800
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.
