Green tourmaline 1.190ct loose stone
Sale price¥98,000
Tanzanite from Tanzania 1.140ct loose stone
Sale price¥39,800
Tanzanite from Tanzania 1.577ct loose stone
Sale price¥49,800
Tanzanite from Tanzania 1.243ct loose stone
Sale price¥45,800
Brazilian Green Tourmaline 1.333ct Loose Stone
Sale price¥49,800
Brazilian Green Tourmaline 1.193ct Loose Stone
Sale price¥49,800
Oregon Sunstone from the United States 1.625ct loose stone
Sale price¥29,800
Nigerian Green Beryl 1.349ct Loose Stone
Sale price¥98,000
Colombian emerald rough stone 1.707ct
Sale price¥18,800
Brazilian Rubellite 1.027ct Loose Stone
Sale price¥69,800
Mexican Fire Opal 1.222ct Loose (Faceted Cut)
Sale price¥12,800
South African Sugilite 1.330ct loose stone
Sale price¥22,800
1.953ct Bicolor Sphalerite from Spain
Sale price¥25,800
Zimbabwean Apatite (UV type) 1.393ct loose stone
Sale price¥29,800
Brazilian Rubellite Cat's Eye 1.180ct Loose Stone
Sale price¥29,800
Bicolor tourmaline 1.258ct loose
Sale price¥12,800
Brazilian bicolor tourmaline 1.248ct loose stone
Sale price¥18,800
Tanzania Bicolor Zoisite 1.509ct Loose Stone
Sale price¥22,800
Brazilian Moss Agate 1.065ct Loose Stone
Sale price¥12,800
Nigerian Aventurine Aquamarine 1.164ct Loose Stone
Sale price¥12,800
Sri Lankan Silky Sapphire 6.4mm/1.036ct Loose Stone
Sale price¥12,800
Silky Sapphire from Sri Lanka 1.716ct loose stone
Sale price¥14,800
Myanmar Taaffeite 6.9mm/1.408ct loose stone
Sale price¥98,000
Tanzanite from Tanzania 1.250ct loose stone
Sale price¥22,800
Tanzania Zoisite 1.000ct Loose Stone
Sale price¥19,800
YAG (Yttrium Aluminum Garnet) 6.5mm/1.551ct Loose Stone
Sale price¥19,800
Mexican Danburite 7.0mm/1.224ct loose stone
Sale price¥9,800
Brazilian Sky Blue Topaz (untreated) 1.376ct loose stone
Sale price¥12,800
Brazilian Lepidocrocite in Quartz 1.126ct Loose Stone
Sale price¥12,800
Brazilian Lepidocrocite in Quartz 1.352ct Loose Stone
Sale price¥12,800
Indian Cavansite 1.171ct loose stone
Sale price¥9,800
Mozambique Pink Tourmaline 1.122ct Loose Stone (Contains CuO)
Sale price¥39,800
Zimbabwean Blue Apatite (UV Type) 1.019ct Loose
Sale price¥14,800
Cassiterite 1.658ct loose stone (bicolor cassiterite) Japan-Germany exchange
Sale price¥128,000
Chinese bicolor fluorite 1.215ct loose stone
Sale price¥7,980
Brazilian Medusa Quartz (Paraiba Quartz) 1.945ct Loose Stone
Sale price¥24,800

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.