Sinhalite from Sri Lanka 0.706ct loose stone
Sale price¥9,800
Yellow sapphire 0.287ct loose stone
Sale price¥9,800
Yellow sapphire 0.229ct loose stone
Sale price¥9,800
Ethiopian honeycomb opal 3.566ct loose stone
Sale price¥46,800
Mexican Opal 9.6mm/1.803ct Loose (Contralus Opal)
Sale price¥69,800
Ethiopian Opal 0.961ct Loose (Sphere)
Sale price¥7,980
[Koshu Precious Stones plusthree] Citrine 5.121ct Loose
Sale price¥39,800
Chrysoberyl cat's eye 1.088ct loose stone
Sale price¥8,800
Bicolor Citrine 8.362ct Loose
Sale price¥8,800
Diamond rough (makeable) 0.242ct rough
Sale price¥12,800
Chrysoberyl cat's eye 0.495ct loose stone
Sale price¥8,800
Mexican Fire Opal 1.424ct Loose
Sale price¥49,800
Yellow Zircon 0.268ct Loose
Sale price¥9,800
Green tourmaline 0.621ct loose stone
Sale price¥9,800
Green tourmaline 0.457ct loose stone
Sale price¥9,800
Chameleon Diamond Green Diamond 0.122ct Loose (FANCY GRAY GREEN, SI2)
Sale price¥69,800
[E_27 Yurakucho Marui Takeout] Salt and Pepper Diamond 0.446ct Loose
Sale price¥39,800
Brazilian Imperial Topaz 0.826ct Loose
Sale price¥19,800
Brazilian Imperial Topaz 0.746ct Loose
Sale price¥18,800
[E_27 Yurakucho Marui Take-out] Brazilian Imperial Topaz 0.413ct Loose
Sale price¥11,000
Brazilian Imperial Topaz 0.402ct Loose Stone
Sale price¥11,000
Brazilian Imperial Topaz 0.357ct Loose Stone
Sale price¥12,800
Brazilian Imperial Topaz 0.349ct Loose Stone
Sale price¥12,800
Brazilian Imperial Topaz 0.153ct Loose
Sale price¥5,980
Montana Sapphire 0.291ct Loose (Yellow Sapphire)
Sale price¥9,800
Brazilian imperial topaz 0.830ct loose
Sale price¥19,800
Brazilian Imperial Topaz 0.843ct Loose Stone
Sale price¥19,800
Brazilian Imperial Topaz 2.004ct Loose Stone
Sale price¥49,800
Salt and Pepper Diamond 0.507ct Loose (Green Fluorescence)
Sale price¥59,800
[Camellia Cut] Ametrine 14mm/8.308ct Loose Stone
Sale price¥89,800
Yellow sapphire 0.445ct loose
Sale price¥8,800
Yellow sapphire 0.294ct loose
Sale price¥8,800
Yellow sapphire 0.315ct loose
Sale price¥6,980
Yellow sapphire 0.464ct loose
Sale price¥12,800
Montana Sapphire 0.238ct loose
Sale price¥7,980
Sri Lankan Yellow Sapphire 0.782ct Loose
Sale price¥14,800
Montana Sapphire 0.305ct loose (green sapphire)
Sale price¥9,800
Montana Sapphire 0.235ct loose (yellow sapphire)
Sale price¥8,800
Montana Sapphire 0.304ct loose (yellow sapphire)
Sale price¥9,800
Montana Sapphire 0.291ct loose (green sapphire)
Sale price¥11,800
Montana Sapphire 0.290ct loose (yellow sapphire)
Sale price¥9,800
Montana Sapphire (Montana Sapphire) 0.210ct Loose
Sale price¥8,800
Montana Sapphire 0.416ct Loose (Bi-Color Sapphire)
Sale price¥12,800

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.