Zircon 0.371ct loose stone
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
Zircon 1.543ct loose
Sale price¥6,980
Bicolor tanzanite 1.250ct loose
Sale price¥19,800
Zircon 1.020ct loose
Sale price¥5,980
Zircon 0.654ct loose stone
Sale price¥9,800
Zircon 0.638ct loose stone
Sale price¥14,800
Zircon 8.12ct raw stone《New birthstone for December》
Sale price¥12,800
Bicolor tanzanite 2.270ct loose
Sale price¥55,800
Tanzanite 1.614ct loose
Sale price¥24,800
Zircon 1.590ct loose
Sale price¥6,980
Orange zircon 1.310ct loose
Sale price¥6,980
Zircon 1.160ct loose
Sale price¥6,980
Tanzanite 4.940ct rough stone
Sale price¥6,980
Tanzanite 5.930ct rough stone
Sale price¥8,800
Green zircon 3.060ct loose
Sale price¥9,800
Bicolor tanzanite 2.780ct loose
Sale price¥39,800
Blue Zircon (Ratanakiri Blue) 23.12ct loose
Sale price¥498,000
Tanzanian bicolor zoisite 2.910ct loose stone (bicolor tanzanite)
Sale price¥58,800
Tanzanite 6.320ct loose
Sale price¥128,000
Zircon 0.390ct loose
Sale price¥3,980
K18 Tanzanite 1.0ct Ring
Sale price¥79,800
Tanzania Bicolor Zircon 4.333ct Loose Stone, Japan-Germany Exchange
Sale price¥59,800

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.