Diaspore 1.064ct loose
Sale price¥5,980
Diaspore 1.620ct loose
Sale price¥8,800
Diaspore 0.669ct loose
Sale price¥4,980
Idocrace 1.634ct loose
Sale price¥15,800
Cobalt Garnite 0.175ct Loose Japanese-German Edition
Sale price¥49,800
Color change Andesine 1.857ct loose
Sale price¥29,800
Green sapphire 7.545ct loose (spade cut)
Sale price¥69,800
Kenyan gold sheen sapphire 0.257ct loose
Sale price¥29,800
Blue Garnite 0.794ct Loose Japanese-German Edition
Sale price¥148,000
Paudlettite 0.375ct loose Japanese-German book
Sale price¥298,000
Color change andesine 0.670ct loose stone from Yurakucho Marui 2024112
Sale price¥11,800
Green tourmaline 2.166ct loose (sugar loaf cut)
Sale price¥8,800
Bicolor tourmaline 3.277ct loose
Sale price¥9,800
Star spinel 1.259ct loose
Sale price¥18,800
Star spinel 1.259ct loose
Sale price¥18,800
Star peridot 0.143ct loose
Sale price¥17,800
Star peridot 0.105ct loose
Sale price¥12,800
Star peridot 0.068ct loose
Sale price¥8,800
Bangkacha sapphire (star sapphire) 1.370ct loose
Sale price¥12,800
Color change Andesine 1.486ct loose
Sale price¥29,800
Bangkacha sapphire (star sapphire) 1.573ct loose
Sale price¥12,800
Bangkacha sapphire (star sapphire) 1.417ct loose
Sale price¥8,800
Kenyan gold sheen sapphire 2.5mm/0.092ct loose
Sale price¥11,000
Kenyan gold sheen sapphire 2.3mm/0.084ct loose
Sale price¥12,800
Kenyan gold sheen sapphire 2.3mm/0.083ct loose
Sale price¥11,000
Kenyan gold sheen sapphire 2.3mm/0.083ct loose
Sale price¥8,800
Kenyan gold sheen sapphire 2.3mm/0.079ct loose
Sale price¥8,800
Kenyan gold sheen sapphire 2.3mm/0.076ct loose
Sale price¥7,980
Kenyan gold sheen sapphire 2.1mm/0.071ct loose
Sale price¥9,800
Kenyan gold sheen sapphire 2.2mm/0.069ct loose
Sale price¥9,800
Kenyan gold sheen sapphire 2.2mm/0.064ct loose
Sale price¥9,800
Kenyan gold sheen sapphire 2.4mm/0.086ct loose
Sale price¥12,800
Kenyan gold sheen sapphire 2.3mm/0.080ct loose
Sale price¥11,800
Kenyan gold sheen sapphire 2.2mm/0.068ct loose
Sale price¥12,800
Bangkacha sapphire (star sapphire) 69.655ct loose
Sale price¥198,000
Cobalt Garnite 0.216ct Loose Japanese-German Edition
Sale price¥64,800
Kenyan gold sheen sapphire 2.2mm/0.052ct loose
Sale price¥12,800
Bancacha sapphire (star sapphire) 0.720ct loose
Sale price¥3,980
Danburite 6.780ct loose (light pink)
Sale price¥39,800
Danburite 7.540ct loose (berry light pink)
Sale price¥39,800
Aquamarine 15mm/10.190ct loose
Sale price¥69,800
Pink tourmaline 0.620ct loose (Asscher cut)
Sale price¥8,800
Jeremejevite from Namibia (Elemejevite) 0.382ct loose
Sale price¥128,000
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.