Sky blue topaz 1.719ct loose stone
Sale price¥8,800
Brazilian Bicolor Tourmaline 7.2mm/1.326ct Loose Stone
Sale price¥18,800
[On sale June 12th at 10 PM] Synthetic Alexandrite 1.381ct Loose Stone
Sale price¥25,800
[On sale June 14th at 10 PM] Australian Black Opal 1.080ct Loose Stone
Sale price¥39,800
[12551312] Zimbabwean Blue Apatite (UV Type) 1.312ct Loose Stone
Sale price¥8,800
Tanzanian pink tourmaline 0.558ct loose stone
Sale price¥9,800
Sri Lankan Star Sapphire 2.093ct Loose
Sale price¥8,800
Bicolor Zoisite 1.100ct Loose Stone (Bicolor Tanzanite)
Sale price¥18,800
Lavender Tanzanite 0.784ct loose stone
Sale price¥12,800
Mexican Opal 0.499ct Loose
Sale price¥3,980
Mexican Opal 0.854ct Loose
Sale price¥5,980
[On sale June 8th, 10 PM] Bi-Color Sapphire 1.040 ct Loose Gemstone GIT
Sale price¥29,800
[On sale June 7, 10 PM] Untreated Blue Sapphire 2.430ct Loose Gemstone GIA
Sale price¥258,000
Mexican Hyalite Opal 1.215ct Loose (Faceted Cut)
Sale price¥8,800
Almandine Garnet 1.049ct Loose Stone
Sale price¥9,800
Myanmar Star Spinel 2.030ct Loose
Sale price¥69,800
[On sale 5/22 at 10 PM] Synthetic Alexandrite 1.320ct Loose Gemstone
Sale price¥19,800
[On sale May 21st at 10 PM] Synthetic Alexandrite 1.241ct Loose Gemstone
Sale price¥25,800
Bicolor Tanzanite 1.677ct rough stone
Sale price¥7,980
Colombian emerald 0.443ct rough stone
Sale price¥8,800
Mica in Quartz 0.865ct Loose Stone
Sale price¥5,980
[On Sale May 14th at 10 PM] Colombian Emerald 0.689ct Loose Stone
Sale price¥18,800
South African Sugilite 7.3mm/1.034ct loose stone
Sale price¥14,800
South African Sugilite 0.814ct loose stone
Sale price¥12,800
Synthetic Spinel 1.668ct Loose Stone (Synthetic Blue Spinel)
Sale price¥12,800
GGG (Gadolinium Gallium Garnet) 3.046ct Loose Stone
Sale price¥18,800
Brazilian Bicolor Tourmaline 0.780ct Loose
Sale price¥12,800
Tanzanian Zoisite 1.290ct Loose Stone with Appraisal
Sale price¥19,800
3.073ct Mozambique Almandine Garnet Loose Stone
Sale price¥22,800
Mozambican Rhodolite Garnet 1.890ct Loose Stone
Sale price¥18,800
Tanzanite 1.004ct loose stone
Sale price¥18,800
Mexican Fire Opal 1.424ct Loose
Sale price¥39,800
Bulgarian Sphalerite 7.6mm/2.233ct Loose
Sale price¥69,800
Moss Agate 0.771ct loose
Sale price¥6,980
2.946 ct loose barite from Guizhou, China, with a gemological report
Sale price¥69,800
Tanzanian Kornerupine Cat's Eye 1.331ct Loose Stone
Sale price¥5,980
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.