Colombian emerald 0.382ct loose stone
Sale price¥29,800
Colombian emerald with pyrite 1.902ct rough stone
Sale price¥29,800
Colombian emerald with pyrite 5.031ct rough stone
Sale price¥69,800
Colombian emerald 0.153ct rough stone
Sale price¥7,980
Colombian emerald 0.202ct rough stone
Sale price¥9,800
Colombian emerald 0.161ct rough stone
Sale price¥6,980
Colombian emerald 0.499ct rough stone
Sale price¥15,800
Colombian emerald 0.443ct rough stone
Sale price¥9,800
Colombian emerald 0.575ct rough stone
Sale price¥12,800
Colombian emerald 1.329ct rough stone
Sale price¥19,800
Padparadscha Sapphire 0.497ct Loose DGL
Sale price¥59,800
Myanmar Trapiche Ruby 0.152ct Loose
Sale price¥8,800
Australian black opal 0.650ct loose
Sale price¥18,800
Mexican Opal 1.666ct Loose
Sale price¥14,800
Brazilian Paraiba Tourmaline 0.216ct loose stone (CuO:1.2%, MnO:2.7%)
Sale price¥69,800
Blue sapphire 2.425ct loose stone with jewel
Sale price¥59,800
Unheated color change sapphire 1.070ct loose stone
Sale price¥158,000
Unheated Brazilian Paraiba Tourmaline 0.110ct Loose Stone AIGS
Sale price¥258,000
Mexican Fire Opal 0.669ct Loose (Contralus Opal)
Sale price¥15,800
Sri Lankan Purple Twin Star Sapphire 2.423ct Loose
Sale price¥128,000
Sri Lankan Twin Star Sapphire 2.443ct Loose
Sale price¥128,000
Australian Shell Opal (Shell Opal) 74.153ct Rough Stone
Sale price¥29,800
《Yurakucho Marui 2024112 takeout》Ukrainian bicolor topaz 5.622ct loose stone
Sale price¥198,000
Benitoite 0.272ct loose stone (emerald cut)
Sale price¥248,000
Montana sapphire 10 stone half eternity ring set (approx. 2.6mm)
Sale price¥98,000
《Yurakucho Marui 2024112 takeout》Ruby 0.242ct loose stone
Sale price¥14,800
Ruby 0.110ct loose
Sale price¥9,800
London Blue Topaz 4.254ct Loose
Sale price¥12,800
Aquamarine 0.327ct loose stone
Sale price¥9,800
Pink amethyst 3.275ct loose stone
Sale price¥9,800
Sri Lankan Twin Star Sapphire 2.895ct Loose
Sale price¥69,800
Sri Lankan Tourmaline in Quartz 5.192ct Loose Stone
Sale price¥12,800
Sri Lankan Ilmenite in Star Sapphire 3.426ct loose stone (Ratnapura)
Sale price¥49,800
Paraiba tourmaline from Mozambique 0.252ct loose
Sale price¥15,800
Paraiba Tourmaline from Mozambique 0.234ct loose stone
Sale price¥12,800
White sapphire 0.263ct loose stone
Sale price¥15,800
Violet sapphire 0.267ct loose stone
Sale price¥14,800
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.
