Italian Leucite 0.374ct loose stone (play of color)
Sale price¥14,800
Mexican Cantera Opal 3.297ct Loose
Sale price¥29,800
[Camellia Cut] Inca Rose 13.398ct {Collaboration} Loose Patch
Sale price¥29,800
YAG (Yttrium Aluminum Garnet) 7mm/1.686ct Loose Stone
Sale price¥12,800
Almandine garnet 2.421ct loose
Sale price¥18,800
Namibian Dioptase 0.134ct Loose Stone, Japan-Germany Mirror
Sale price¥59,800
3.324ct Tanzanian Purple Zoisite Rough Stone
Sale price¥6,980
Tanzania Bicolor Pink Zoisite 4.037ct Rough Stone
Sale price¥12,800
Tanzania Bicolor Pink Zoisite 5.041ct Rough Stone
Sale price¥12,800
Tanzania Purple Zoisite Rough Stone 5.522ct
Sale price¥9,800
Tanzania Bicolor Zoisite 1.608ct Rough Stone
Sale price¥12,800
Tanzania Purple Zoisite Rough Stone 2.590ct
Sale price¥9,800
[Mr. KEN] Tourmaline 1.099ct loose stone
Sale price¥12,800
Tasmanian Crocoite 0.292ct Loose Stone, Japan-Germany Exchange
Sale price¥98,000
Italian Leucite 0.338ct loose stone (play of color)
Sale price¥15,800
Synthetic Moissanite 11.7mm/5.570ct Loose Stone (Portuguese Cut)
Sale price¥29,800
[Koshu Precious Stone Cut] Scololite 6.039ct Loose Stone Patch
Sale price¥69,800
Montana Sapphire 0.152ct loose
Sale price¥12,800
Paraiba tourmaline 132.195ct raw stone from Brazil
Sale price¥12,800
Ethiopian Opal 167.191ct Rough Stone
Sale price¥39,800
Diamond 0.081ct loose stone (E, SI1, fan cut)
Sale price¥12,800
Diamond 0.088ct loose (D, SI2, fan cut)
Sale price¥14,800
Diamond 0.140ct loose (E, VS2)
Sale price¥35,800
Diamond 2.7mm/0.074ct loose (E, SI2, special cut)
Sale price¥18,800
Brazilian Euclase 0.213ct loose stone (bicolor Euclase)
Sale price¥15,800
Tanzania Magnesioaxinite 0.123ct loose stone by Nikkei
Sale price¥49,800
Pigeon Blood Ruby 0.40ct Loose AIGS
Sale price¥59,800
Myanmar Pink Taaffeite 0.345ct Loose Stone, Japan-Germany Exchange
Sale price¥39,800
American Benitoite 4.8mm/0.396ct Loose Stone by Nikkei
Sale price¥298,000
Brazilian Indigolite Tourmaline 3.613ct Loose Stone, Japan-Germany Exchange
Sale price¥128,000
American Bicolor Benitoite 0.358ct Loose Stone by Nikkei
Sale price¥298,000
Myanmar Pink Taaffeite 0.243ct Loose Stone by Nikkei
Sale price¥49,800
Namibian Jeremejevite 0.307ct loose stone by Nikkei
Sale price¥22,800
Pakistani Clinohumite 2.057ct Loose Stone, Japan-Germany Exchange
Sale price¥39,800
Pakistani Clinohumite 1.440ct Loose Stone, Japan-Germany Exchange
Sale price¥29,800
American Benitoite 0.175ct Loose Stone, Japan-Germany Mirror
Sale price¥59,800
Purple zoisite from Tanzania 1.103ct loose Japanese German edition
Sale price¥98,000
[Sakura Incut] Purple Spinel 5.5mm/0.609ct {Collaboration} Loose Patch
Sale price¥55,800
Malawi Sapphire 3mm/0.131ct Loose
Sale price¥15,800
Mexican Fire Agate 6.090ct Loose Stone
Sale price¥14,800
Colombian pyrite emerald 40.789ct rough stone
Sale price¥25,800
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.
