Mexican Fire Opal 1.104ct Loose
Sale price¥9,800
Mexican Fire Opal 0.403ct Loose
Sale price¥9,800
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
Mexican egg-in-opal 1.582ct loose stone
Sale price¥18,800
Mexican egg-in-opal 1.243ct loose stone
Sale price¥14,800
Mexican egg-in-opal 0.865ct loose stone
Sale price¥14,800
Mexican egg-in-opal 0.672ct loose stone
Sale price¥12,800
Brazilian dendritic quartz 3.333ct loose stone
Sale price¥9,800
Montana Sapphire 0.278ct Loose (Yellow Sapphire)
Sale price¥8,800
Oregon Sunstone 0.217ct loose
Sale price¥5,980
Oregon Sunstone 0.226ct loose
Sale price¥5,980
Oregon Sunstone 0.462ct loose
Sale price¥6,980
South African rhodochrosite 2.477ct loose Japanese-German edition
Sale price¥398,000
Australian rainbow lattice sunstone 0.378ct loose
Sale price¥5,980
Australian rainbow lattice sunstone 0.498ct loose
Sale price¥3,980
Australian rainbow lattice sunstone 0.449ct loose
Sale price¥5,980
Australian rainbow lattice sunstone 0.354ct loose
Sale price¥5,980
Australian rainbow lattice sunstone 0.353ct loose
Sale price¥5,980
Oregon Sunstone 8.256ct rough stone
Sale price¥15,800
Australian rainbow lattice sunstone 0.587ct loose
Sale price¥6,980
Australian rainbow lattice sunstone 1.082ct loose
Sale price¥6,980
Australian rainbow lattice sunstone 0.378ct loose
Sale price¥5,980
Sunstone (Illusion Sunstone) 1.908ct loose
Sale price¥8,800
Montana Sapphire 0.262ct Loose (Bi-Color Sapphire)
Sale price¥9,800
Montana Sapphire 0.285ct Loose (Yellow Sapphire)
Sale price¥9,800
Montana Sapphire 0.254ct loose
Sale price¥9,800
Montana Sapphire 0.244ct Loose (Orange Sapphire)
Sale price¥9,800
Australian Rainbow Lattice Sunstone 0.865ct Loose
Sale price¥6,980
Pink spinel 3.8mm/0.192ct loose
Sale price¥5,980
Montana Sapphire 0.242ct Loose (Yellow Sapphire)
Sale price¥8,800
Montana Sapphire 0.458ct Loose (Bi-Color Sapphire)
Sale price¥14,800
Montana Sapphire 0.416ct Loose (Bi-Color Sapphire)
Sale price¥12,800
Madeira citrine 0.170ct loose
Sale price¥5,980
Montana Sapphire 0.561ct loose (bicolor sapphire)
Sale price¥22,800
Australian rainbow lattice sunstone 1.143ct loose
Sale price¥3,980
Australian rainbow lattice sunstone 0.609ct loose
Sale price¥5,980
Australian rainbow lattice sunstone 0.491ct loose
Sale price¥5,980
Australian Rainbow Lattice Sunstone 1.013ct Loose
Sale price¥5,980
Australian Rainbow Lattice Sunstone 1.635ct Loose
Sale price¥8,800
Oregon Sunstone 0.551ct loose
Sale price¥9,800
Mexican Fire Opal 0.277ct Loose (Faceted Cut)
Sale price¥5,980

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.