Star sapphire 2.580ct loose
Sale price¥14,800
Afghanite 0.496ct loose Japanese-German book
Sale price¥14,800
Andesine 18.643ct loose Japanese-German book
Sale price¥88,000
Red beryl 0.200ct loose Japanese-German book
Sale price¥39,800
Burmese red spinel 0.418ct loose
Sale price¥69,800
Bicolor tourmaline 2.30ct loose
Sale price¥39,800
Tanzanite 41.690ct loose
Sale price¥2,480,000
Color change Andesine 0.810ct loose
Sale price¥18,800
Star spinel 1.210ct loose
Sale price¥15,800
[KEN] Zircon 0.592ct loose
Sale price¥4,980
[KEN] Zircon 0.426ct loose
Sale price¥5,980
[KEN] Zircon 0.371ct loose
Sale price¥4,980
Red spinel 0.461ct loose
Sale price¥18,800
Bicolor sapphire 0.334ct loose
Sale price¥12,800
Bicolor sapphire 0.304ct loose
Sale price¥19,800
Bicolor sapphire 0.301ct loose
Sale price¥12,800
Pink sapphire 0.301ct loose (silky pink)
Sale price¥15,800
Bicolor sapphire 0.149ct loose
Sale price¥8,800
Dumortierite in quartz 1.260ct loose
Sale price¥7,980
Dumortierite in quartz 0.930ct loose
Sale price¥7,980
Dumortierite in quartz 0.730ct loose
Sale price¥4,980
Green zircon 1.200ct loose
Sale price¥8,800
Green zircon 1.140ct loose
Sale price¥6,980
Green zircon 1.100ct loose
Sale price¥6,980
Green zircon 1.090ct loose
Sale price¥6,980
Green zircon 0.980ct loose
Sale price¥5,980
Green zircon 0.970ct loose
Sale price¥5,980
Green zircon 0.890ct loose
Sale price¥6,980
Bicolor sapphire 0.323ct loose
Sale price¥12,800
Bloodshot Iolite Sunstone 1.090ct Loose
Sale price¥15,800
Jeremejevite 0.094ct loose
Sale price¥8,800
Jeremejevite 0.055ct loose
Sale price¥8,800
Bicolor citrine 4.030ct loose
Sale price¥5,980
Bicolor sapphire 0.960ct loose
Sale price¥24,800
Bicolor sapphire 0.800ct loose
Sale price¥19,800
Pink spinel 0.290ct loose
Sale price¥7,980
Purple spinel 0.210ct loose
Sale price¥6,980
Lavender spinel 0.160ct loose
Sale price¥5,980
Padparadscha Sapphire 6.4mm/1.208ct Loose Medium Treasure Guide
Sale price¥328,000
Dendritic quartz 1.437ct loose
Sale price¥3,980
Dendritic quartz 1.206ct loose
Sale price¥3,980
Bangkacha sapphire (star sapphire) 3.840ct loose
Sale price¥19,800
Bangkacha sapphire (star sapphire) 3.620ct loose
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.