Indian Moss Agate 1.182ct Loose Stone
Sale price¥11,800
Indian Moss Agate 1.434ct Loose Stone
Sale price¥12,800
Cambodian Blue Zircon 1.606ct Loose
Sale price¥18,800
Brazilian Brown Tourmaline 1.529ct Loose Stone
Sale price¥14,800
Brazilian Green Tourmaline 1.059ct Loose Stone
Sale price¥16,800
Mozambique rubellite 1.141ct loose stone
Sale price¥29,800
Brazilian Indigolite Tourmaline 1.616ct Loose Stone JTL
Sale price¥69,800
Brazilian Indigolite Tourmaline 1.440ct Loose Stone JTL
Sale price¥39,800
Green tourmaline 1.190ct loose stone
Sale price¥98,000
Tanzanite from Tanzania 1.140ct loose stone
Sale price¥39,800
Tanzanite from Tanzania 1.577ct loose stone
Sale price¥49,800
Tanzanite from Tanzania 1.162ct loose stone
Sale price¥39,800
Tanzanite from Tanzania 1.243ct loose stone
Sale price¥45,800
Brazilian Green Tourmaline 1.333ct Loose Stone
Sale price¥49,800
Brazilian Green Tourmaline 1.193ct Loose Stone
Sale price¥49,800
Nigerian Green Beryl 1.349ct Loose Stone
Sale price¥98,000
Colombian emerald rough stone 1.707ct
Sale price¥18,800
Brazilian Rubellite 1.027ct Loose Stone
Sale price¥69,800
Mexican Fire Opal 1.222ct Loose (Faceted Cut)
Sale price¥12,800
1.953ct Bicolor Sphalerite from Spain
Sale price¥25,800
Zimbabwean Apatite (UV type) 1.393ct loose stone
Sale price¥29,800
Brazilian Rubellite Cat's Eye 1.180ct Loose Stone
Sale price¥29,800
Brazilian bicolor tourmaline 1.248ct loose stone
Sale price¥18,800
Tanzania Bicolor Zoisite 1.509ct Loose Stone
Sale price¥22,800
Brazilian Moss Agate 1.065ct Loose Stone
Sale price¥12,800
Nigerian Aventurine Aquamarine 1.164ct Loose Stone
Sale price¥12,800
Sri Lankan Silky Sapphire 6.4mm/1.036ct Loose Stone
Sale price¥12,800
Silky Sapphire from Sri Lanka 1.716ct loose stone
Sale price¥14,800
Myanmar Taaffeite 6.9mm/1.408ct loose stone
Sale price¥98,000
Tanzanite from Tanzania 1.250ct loose stone
Sale price¥22,800
Tanzania Zoisite 1.000ct Loose Stone
Sale price¥19,800
YAG (Yttrium Aluminum Garnet) 6.5mm/1.551ct Loose Stone
Sale price¥19,800
Mexican Danburite 7.0mm/1.224ct loose stone
Sale price¥9,800
Brazilian Sky Blue Topaz (untreated) 1.376ct loose stone
Sale price¥12,800
Brazilian Lepidocrocite in Quartz 1.126ct Loose Stone
Sale price¥12,800
Brazilian Lepidocrocite in Quartz 1.352ct Loose Stone
Sale price¥12,800
Tanzanian Mint Garnet 1.276ct Loose Stone
Sale price¥69,800
Indian Cavansite 1.171ct loose stone
Sale price¥9,800
Mozambique Pink Tourmaline 1.122ct Loose Stone (Contains CuO)
Sale price¥39,800
Zimbabwean Blue Apatite (UV Type) 1.019ct Loose
Sale price¥14,800
Cassiterite 1.658ct loose stone (bicolor cassiterite) Japan-Germany exchange
Sale price¥128,000
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.