Sky blue topaz 5.595ct loose
Sale price¥18,800
Brazilian imperial topaz 0.359ct loose
Sale price¥15,800
Brazilian imperial topaz 2.093ct loose
Sale price¥29,800
Sri Lankan Ratotta Topaz 9.926ct Loose (White Topaz)
Sale price¥19,800
Sri Lankan Ratotta Topaz 9.589ct Loose (White Topaz)
Sale price¥15,800
Sri Lankan Ratotta Topaz 4.170ct Loose (White Topaz)
Sale price¥8,800
Sri Lankan Ratotta Topaz 7.709ct Loose (White Topaz)
Sale price¥15,800
White topaz 1.140ct loose
Sale price¥5,980
Mexican Topaz 1.470ct Loose Stone
Sale price¥7,980
Madeira Citrine 6mm/0.965ct loose
Sale price¥6,980
Citrine 0.833ct loose stone
Sale price¥3,980
Brazilian citrine 1.216ct loose stone
Sale price¥4,980
Brazilian citrine 1.250ct loose stone
Sale price¥5,980
Sri Lankan Goethite Into Topaz 3.200ct loose
Sale price¥7,980
White topaz 16.06ct loose
Sale price¥29,800
Topaz 2.628ct loose
Sale price¥3,980
Madeira Citrine 7mm/0.938ct loose
Sale price¥5,980
Brazilian imperial topaz 3.287ct loose
Sale price¥18,800
Blue topaz 5mm/0.527ct loose
Sale price¥3,980
Blue Topaz 5.1mm/0.511ct Loose
Sale price¥4,980
Blue Topaz 4.5mm/0.422ct Loose
Sale price¥3,980
Brazilian imperial topaz 0.467ct loose
Sale price¥15,800
Madeira Citrine 6mm/0.914ct loose
Sale price¥8,800
Topaz cat's eye 8.781ct loose
Sale price¥12,800
Topaz cat's eye 7.869ct loose
Sale price¥11,800
Bicolor imperial topaz 1.725ct loose
Sale price¥98,000
[Koshu precious stone cut plusthree] Citrine 0.901ct loose with patch
Sale price¥29,800
[Koshu precious stone cut plusthree] Citrine 0.962ct loose with patch
Sale price¥29,800
[Koshu precious stone Kiriko plusthree] Citrine 1.137ct loose with patch
Sale price¥29,800
[Koshu precious stone cut plusthree] Citrine 0.912ct loose with patch
Sale price¥29,800
[Koshu precious stone Kiriko plusthree] Citrine 1.121ct loose with patch
Sale price¥29,800
Brazilian Pink Imperial Topaz 1.907ct Loose Japanese-German Edition
Sale price¥118,000
Brazilian Blue Topaz 14.890ct Loose
Sale price¥14,800
[Koshu Precious Stone Kiriko] Swiss Blue Topaz 3.09ct Loose with Patch
Sale price¥45,800
Mexican Topaz 1.50ct Loose
Sale price¥15,800
Topaz 1.680ct loose stone
Sale price¥22,800
Mexican Topaz 1.66ct Loose Stone
Sale price¥18,800
[Sakura Incut] Citrine 10mm《Collaboration》Loose with emblem
Sale price¥25,800
Brazilian Pink Imperial Topaz 2.794ct Loose Japanese-German Edition
Sale price¥158,000

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.