Brazilian Imperial Topaz 0.402ct Loose Stone
Sale price¥11,000
Brazilian Imperial Topaz 0.357ct Loose Stone
Sale price¥12,800
Brazilian Imperial Topaz 0.349ct Loose Stone
Sale price¥12,800
Mexican egg-in-opal 0.672ct loose stone
Sale price¥12,800
Aquamarine 0.398ct loose stone
Sale price¥8,800
Aquamarine 0.568ct loose stone
Sale price¥6,980
Brazilian Medusa Quartz (Paraiba Quartz) 0.400ct Loose
Sale price¥6,980
Sky blue topaz 0.563ct loose stone
Sale price¥5,980
Sky blue topaz 0.428ct loose stone
Sale price¥5,980
Tanzanite 0.349ct loose
Sale price¥9,800
Bicolor Zoisite 0.402ct loose stone
Sale price¥9,800
Bicolor Zoisite 0.302ct loose stone
Sale price¥8,800
Bicolor Zoisite 0.392ct loose stone
Sale price¥8,800
Pink tourmaline 0.416ct loose stone
Sale price¥8,800
Bicolor tourmaline 0.423ct loose
Sale price¥12,800
Bicolor tourmaline 0.552ct loose
Sale price¥12,800
Lepidocrocite in Quartz 0.241ct Loose Stone
Sale price¥6,980
Green tourmaline 0.637ct loose
Sale price¥8,800
Benitoite 0.536ct loose stone (cabochon cut)
Sale price¥12,800
[KEN] Pink spinel from Myanmar 0.604ct loose
Sale price¥9,800
Mozambique Pink Sapphire 0.276ct Loose (Hot Pink Sapphire)
Sale price¥13,800
Aventurine aquamarine 0.288ct loose
Sale price¥6,980
Purple spinel 0.380ct loose
Sale price¥8,800
Purple Spinel 4.3mm/0.323ct Loose Stone
Sale price¥8,800
Violet spinel 0.301ct loose
Sale price¥9,800
Oregon Sunstone 0.217ct loose
Sale price¥5,980
Oregon Sunstone 0.226ct loose
Sale price¥5,980
Lepidocrocite in quartz 0.308ct loose
Sale price¥8,800
Lepidocrocite in quartz 0.532ct loose
Sale price¥6,980
Aquamarine 0.519ct loose
Sale price¥8,800
Tanzania Zoisite 0.278ct loose stone
Sale price¥8,800
Zoisite 0.247ct loose stone (heart shape)
Sale price¥8,800
Bicolor tourmaline 0.429ct loose
Sale price¥6,980
Bicolor Tourmaline 0.378ct Loose Stone (Hexagonal Cut)
Sale price¥8,800
Oregon Sunstone 0.462ct loose
Sale price¥6,980
Scapolite 0.587ct loose stone from Japan and Germany
Sale price¥8,800
Australian rainbow lattice sunstone 0.378ct loose
Sale price¥5,980
Australian rainbow lattice sunstone 0.498ct loose
Sale price¥3,980
Australian rainbow lattice sunstone 0.449ct loose
Sale price¥5,980
Australian rainbow lattice sunstone 0.354ct loose
Sale price¥5,980
Australian rainbow lattice sunstone 0.353ct loose
Sale price¥5,980
Australian rainbow lattice sunstone 0.587ct loose
Sale price¥6,980
Australian rainbow lattice sunstone 1.082ct loose
Sale price¥6,980
Yellow sapphire 0.445ct loose
Sale price¥8,800
Yellow sapphire 0.315ct loose
Sale price¥6,980
Brazilian Santa Maria Aquamarine 0.181ct loose
Sale price¥6,980
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.