White topaz 16.06ct loose
Sale price¥29,800
Bicolor grossular garnet 0.782ct loose
Sale price¥16,800
Paraiba tourmaline from Mozambique 0.256ct loose
Sale price¥18,800
Paraiba tourmaline from Mozambique 0.207ct loose
Sale price¥12,800
Indigolite tourmaline 0.260ct loose Japanese-German book
Sale price¥18,800
Purple spinel 0.995ct loose stone
Sale price¥18,800
Mexican Fire Opal 4.5mm/0.244ct Loose
Sale price¥12,800
Myanmar star diopside 0.898ct loose
Sale price¥12,800
Paraiba tourmaline from Mozambique 0.215ct loose
Sale price¥12,800
Chrysoberyl cat's eye 2.283ct loose
Sale price¥22,800
Colombian emerald cat's eye 0.110ct loose
Sale price¥12,800
Paraiba tourmaline from Mozambique 0.229ct loose
Sale price¥12,800
Colombian Euclase 3.417ct rough stone
Sale price¥12,800
[Rouge cut] Almandine garnet 2.090ct loose
Sale price¥12,800
[Rouge cut] Almandine garnet 2.076ct loose
Sale price¥12,800
Oregon Sunstone 0.976ct loose
Sale price¥19,800
Synthetic rutile 5mm/0.553ct loose stone
Sale price¥15,800
Synthetic rutile 5.8mm/0.904ct loose stone
Sale price¥15,800
Strontium titanate 5mm/0.688ct loose stone
Sale price¥15,800
Strontium titanate 4.2mm/0.410ct loose stone
Sale price¥12,800
YAG (Yttrium Aluminum Garnet) 7mm/1.775ct Loose Stone
Sale price¥12,800
Paraiba tourmaline from Mozambique 0.388ct loose
Sale price¥24,800
Paraiba tourmaline from Mozambique 0.272ct loose
Sale price¥15,800
Paraiba tourmaline from Mozambique 0.596ct loose
Sale price¥29,800
Paraiba tourmaline from Mozambique 0.273ct loose
Sale price¥18,800
Paraiba tourmaline from Mozambique 0.228ct loose
Sale price¥12,800
Bicolor Andesine 6mm/0.756ct loose
Sale price¥15,800
Bicolor Andesine 6mm/0.691ct loose
Sale price¥15,800
Bicolor Andesine 6mm/0.852ct loose (color shift)
Sale price¥18,800
Bicolor Andesine 6mm/0.824ct loose (color shift)
Sale price¥18,800
Bicolor Andesine 6mm/0.699ct loose (color shift)
Sale price¥18,800
Bicolor Andesine 6mm/0.783ct loose (color shift)
Sale price¥18,800
Australian boulder opal 3.695ct loose
Sale price¥15,800
Australian boulder opal 1.552ct loose
Sale price¥12,800
Sri Lankan star sapphire 1.487ct loose
Sale price¥12,800
Australian boulder opal 4.729ct loose
Sale price¥19,800
Bicolor tanzanite 0.479ct loose
Sale price¥24,800
Oregon Sunstone 1.333ct Loose
Sale price¥12,800
Cambodian blue zircon (Ratanakiri blue) 2.143ct loose
Sale price¥29,800
Pink sapphire from Mozambique 0.213ct loose (hot pink sapphire)
Sale price¥14,800
Paraiba tourmaline from Mozambique 0.243ct loose
Sale price¥19,800
Unheated silky pink sapphire from Vietnam 0.426ct loose
Sale price¥18,800
Baddeleyite from Myanmar 0.279ct Ruth Japanese German edition
Sale price¥15,800
Brazilian bicolor tourmaline 1.554ct loose (tricolor tourmaline)
Sale price¥25,800
Montana Sapphire 3mm/0.155ct loose
Sale price¥23,800
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.