Mexican Hyalite Opal 6.0mm/0.676ct Loose Stone
Sale price¥15,800
Mexican Hyalite Opal 5.0mm/0.449ct Loose Stone
Sale price¥9,800
Brazilian Euclase (Bicolor Euclase) 0.302ct Loose Stone
Sale price¥49,800
Brazilian Euclase 0.492ct Loose Stone (Bicolor Euclase)
Sale price¥29,800
Brazilian Santa Maria Aquamarine 0.206ct loose stone
Sale price¥12,800
Russian Diopside 0.402ct Loose Stone
Sale price¥8,800
Madagascar sphene 0.991ct loose stone
Sale price¥12,800
Brazilian Petalite 0.615ct loose stone
Sale price¥6,980
Madagascar Purple Sapphire 0.429ct Loose
Sale price¥12,800
Sri Lankan Green Zircon 0.456ct Loose Stone
Sale price¥6,980
Blue beryl (Macis beryl) 0.199ct loose stone
Sale price¥9,800
Brazilian Blue Tourmaline 0.650ct Loose
Sale price¥9,800
Unheated Mozambique Ruby 0.220ct Loose
Sale price¥25,800
Tanzanian Blue Spinel 1.028ct Loose Stone
Sale price¥39,800
Myanmar pink spinel 0.344ct loose stone
Sale price¥8,800
Brazilian Green Tourmaline 0.703ct Loose Stone
Sale price¥15,800
Brazilian bicolor tourmaline 0.675ct loose stone
Sale price¥9,800
Kyanite 1.042ct loose (commonly known as Paraiba color kyanite)
Sale price¥8,800
Sri Lankan White Sapphire 0.385ct Loose
Sale price¥14,800
Bicolor tourmaline 0.840ct loose
Sale price¥22,800
Madagascar emerald 0.816ct loose stone
Sale price¥98,000
Brazilian Bicolor Pink Euclase 0.236ct Loose Stone, Japan-Germany
Sale price¥128,000
Brazilian Lepidocrocite in Quartz 0.484ct Loose Stone
Sale price¥9,800
Tourmaline 0.541ct loose stone
Sale price¥8,800
Brazilian bicolor tourmaline 0.326ct loose stone
Sale price¥8,800
Brazilian Green Tourmaline 0.350ct Loose
Sale price¥9,800
Brazilian bicolor euclase 0.239ct loose stone
Sale price¥18,800
Brazilian bicolor euclase 0.572ct loose stone
Sale price¥24,800
[Koshu Precious Stone Cutting Pluethree] Yellow Beryl 0.880ct Loose
Sale price¥29,800
Madagascar Bekiri Blue Garnet (Color Change Garnet) 0.365ct Loose Stone
Sale price¥18,800
Tanzania Pink Zoisite 5.8mm/0.848ct Loose Stone
Sale price¥198,000
Green tourmaline 0.512ct loose stone
Sale price¥9,800
Brazilian bicolor tourmaline 0.502ct loose stone
Sale price¥12,800
Madagascar Yellow Sapphire 0.863ct Loose
Sale price¥18,800
Nigerian Aventurine Aquamarine 0.471ct Loose Stone
Sale price¥8,800
Vietnam Aquamarine 6.0mm/0.781ct Loose Stone
Sale price¥8,800
Pink sapphire 0.271ct loose stone
Sale price¥8,800
Montana Sapphire 0.405ct Loose (Green Sapphire)
Sale price¥9,800
Brazilian Paraiba Tourmaline 0.759ct rough stone
Sale price¥45,800
Cassiterite 1.658ct loose stone (bicolor cassiterite) Japan-Germany exchange
Sale price¥128,000
Colombian Trapiche Emerald 0.291ct Loose
Sale price¥15,800
Colombian Trapiche Emerald 0.147ct Loose
Sale price¥9,800
Ethiopian Opal 5.2mm/0.688ct Loose (Sphere)
Sale price¥6,980
Colombian Trapiche Emerald 0.266ct Loose
Sale price¥14,800
American Herkimer Diamond 5.6mm/0.516ct Loose
Sale price¥9,800
Brazilian Paraiba Tourmaline 0.821ct rough stone
Sale price¥39,800
Colombian Trapiche Emerald 0.299ct Loose
Sale price¥16,800
Tanzania Bicolor Zoisite 0.397ct Loose Stone
Sale price¥8,800
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.
So that more people can feel closer to jewellery and enjoy it easily.
We will introduce KARATZ's thoughts on products, the attention to detail and efforts in selecting gemstones and creating jewelry.
KARATZ's Initiatives and Social Contributions
We will introduce KARATZ's efforts, including nurturing the next generation and business collaboration to develop the industry, and supporting children in Sri Lanka, the land of jewels.
KARATZ Books
These are books that KARATZ has been involved in writing, supervising, and planning. They are all books that allow you to enjoy gemstones from various angles. You can also purchase them directly.
jeweler's tools
For those who want to enjoy jewelry more but don't know what tools to use, we will introduce tools that are also used by KARATZ staff. You can also purchase them directly.