Tanzanite from Tanzania 0.432ct loose stone
Sale price¥12,800
0.870ct loose purple spinel from Madagascar
Sale price¥14,800
Madagascar Purple Spinel 5.2mm/0.651ct Loose Stone
Sale price¥8,800
Madagascar Iolite 2.272ct loose stone
Sale price¥19,800
Tanzanite 0.477ct loose stone (princess cut) from Tanzania
Sale price¥12,800
Tanzanite from Tanzania 0.642ct loose stone
Sale price¥12,800
Tanzanite from Tanzania 0.520ct loose stone
Sale price¥12,800
Madagascar Iolite 3.129ct loose stone
Sale price¥39,800
Tanzanian bicolor tanzanite 1.284ct loose stone
Sale price¥29,800
Namibian Jeremejevite 0.257ct loose stone
Sale price¥39,800
Namibian Jeremejevite 0.171ct loose stone
Sale price¥39,800
Madagascar Purple Sapphire 4.5mm/0.393ct Loose Stone
Sale price¥18,800
Madagascar Purple Sapphire 4.5mm/0.435ct Loose Stone
Sale price¥18,800
Tanzanite 1.540ct loose stone
Sale price¥49,800
Tanzanite 1.055ct loose stone
Sale price¥29,800
Tanzanite 1.458ct loose stone
Sale price¥39,800
Kasharai Amethyst 0.430ct Loose
Sale price¥12,800
Madagascar Iolite Sunstone 1.549ct Loose Stone
Sale price¥24,800
Sri Lankan Purple Star Sapphire 2.461ct Loose
Sale price¥69,800
[Takeshi Yamamoto] Brazilian Ametrine 29.930ct loose stone
Sale price¥79,800
Sri Lankan Rhodolite Garnet 1.858ct Loose Stone
Sale price¥15,800
Tanzanian bicolor tanzanite 5.0mm/0.585ct loose stone
Sale price¥15,800
Mozambique Rhodolite Garnet 6.1mm/0.968ct Loose Stone
Sale price¥12,800
Bolivian Ametrine 3.751ct loose stone
Sale price¥9,800
Tanzanian Rhodolite Garnet 0.627ct Loose Stone
Sale price¥8,800
[Takeshi Yamamoto] Brazilian Ametrine 24.465ct loose stone
Sale price¥98,000
Violet Sapphire 3.9mm/0.265ct Loose
Sale price¥8,800
Madagascar Violet Sapphire 4.0mm/0.300ct Loose
Sale price¥8,800
Purple Apatite 0.896ct Loose Stone with Certificate of Authenticity
Sale price¥11,000
Purple Apatite 1.549ct Loose Stone with Certificate
Sale price¥18,800
Purple Apatite 0.993ct Loose Stone with Certificate of Authenticity
Sale price¥9,800
Purple Apatite 0.769ct Loose Stone with Certificate of Authenticity
Sale price¥8,800
Myanmar color change zircon 0.596ct loose stone
Sale price¥39,800
Madagascar Purple Sapphire 0.315ct Loose
Sale price¥12,800
Tanzanite from Tanzania 4.9mm/0.531ct loose stone
Sale price¥12,800
Tanzanite from Tanzania 4.7mm/0.503ct loose stone
Sale price¥14,800
Brazilian Ametrine 11.843ct loose stone
Sale price¥22,800
Madagascar Bekiri Blue Garnet (Color Change Garnet) 0.192ct Loose Stone
Sale price¥13,800
Madagascar Bekiri Blue Garnet (Color Change Garnet) 0.272ct Loose Stone
Sale price¥19,800
Madagascar Bekiri Blue Garnet (Color Change Garnet) 0.179ct Loose Stone
Sale price¥12,800
Tanzanite from Tanzania 0.559ct loose stone
Sale price¥9,800
Tanzanite from Tanzania 0.479ct loose stone
Sale price¥7,980
Tanzanite from Tanzania 0.331ct loose stone
Sale price¥5,980
Tanzanite from Tanzania 0.734ct loose stone
Sale price¥12,800
Tanzanite from Tanzania 0.338ct loose stone
Sale price¥8,800

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.