Dominican Republic Conch Pearl (with flame pattern) 0.572ct loose
Sale price¥8,800
Tagtupite from Greenland 0.797ct loose
Sale price¥9,800
Brazilian tourmaline cat's eye 0.910ct loose stone
Sale price¥3,980
[Clover in cut] Mexican opal 7mm/0,648ct {Collaboration} Loose patch
Sale price¥45,800
Andesine Labradorite (also known as Blue Moonstone) 0.949ct loose stone
Sale price¥45,800
Myanmar red spinel 0.524ct rough stone (Star of David)
Sale price¥14,800
Colombian Trapiche Emerald 0.629ct Loose
Sale price¥34,800
Myanmar Taaffeite 0.650ct Loose GIT
Sale price¥39,800
Brazilian Imperial Topaz 0.764ct Loose Stone
Sale price¥19,800
Brazilian bicolor tourmaline 0.845ct loose stone
Sale price¥15,800
[E_27 Yurakucho Marui Take-out] Myanmar Podrettite 0.834ct loose stone
Sale price¥298,000
Russian diamond rough (sawable) 0.509ct rough (trigon)
Sale price¥168,000
[E_27 Yurakucho Marui] Padparadscha Sapphire 0.548ct Loose DGL
Sale price¥49,800
Indian Moss Agate 0.755ct Loose Stone
Sale price¥7,980
Brazilian Lepidocrocite in Quartz 0.721ct Loose Stone
Sale price¥14,800
Brazilian Lepidocrocite in Quartz 0.957ct Loose Stone
Sale price¥15,800
Tourmaline 0.541ct loose stone
Sale price¥8,800
Brazilian Tourmaline 0.858ct Loose Stone
Sale price¥15,800
Brazilian Pink Tourmaline 0.538ct Loose Stone
Sale price¥8,800
Brazilian pink tourmaline 0.844ct loose stone
Sale price¥22,800
Brazilian Pink Tourmaline 0.855ct Loose Stone
Sale price¥14,800
Brazilian Pink Tourmaline 0.628ct Loose Stone
Sale price¥15,800
Mexican Fire Opal 6.7mm/0.953ct Loose
Sale price¥25,800
Mexican Fire Opal 7.1mm/0.911ct Loose
Sale price¥25,800
Brazilian bicolor euclase 0.572ct loose stone
Sale price¥24,800
[Koshu Precious Stone Cutting Pluethree] Yellow Beryl 0.880ct Loose
Sale price¥29,800
Oregon Sunstone from the United States 6.0mm/0.844ct loose stone
Sale price¥25,800
Tanzanite from Tanzania 6.5mm/0.945ct loose stone
Sale price¥28,800
Tanzanite from Tanzania 0.767ct loose stone
Sale price¥29,800
Tanzanite from Tanzania 0.567ct loose stone
Sale price¥14,800
Brazilian Green Tourmaline 0.757ct Loose Stone
Sale price¥39,800
Brazilian Green Tourmaline 0.935ct Loose Stone
Sale price¥45,800
Oregon Sunstone from the United States 0.941ct loose stone
Sale price¥29,800
Oregon Sunstone from the United States 0.976ct loose stone
Sale price¥12,800
Bicolor Benitoite 0.601ct Loose Japanese-German Edition
Sale price¥458,000
[E_27 Yurakucho Marui Take-out] Madagascar Grandidierite 0.521ct Loose
Sale price¥128,000
Australian Boulder Opal 0.768ct Loose
Sale price¥12,800
Indian Rainbow Quartz (Iridescent Quartz) 0.940ct Loose Stone
Sale price¥158,000
Spanish Andalusite 0.776ct loose stone
Sale price¥11,800

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.