Round Cut
Synthetic rutile 6mm/1.091c loose stone
Sale price¥22,800
[Sakura Incut] Danburite 8mm/1.581ct loose stone with patch
Sale price¥29,800
[Sakura Incut] YAG (Yttrium Aluminum Garnet) 9mm/3.410ct Loose
Sale price¥55,800
Goshenite 0.846ct loose stone
Sale price¥8,800
Spanish Sphalerite 2.374ct loose stone
Sale price¥79,800
Madagascar Yellow Sapphire 4.4mm/0.417ct Loose
Sale price¥15,800
Kunzite from Afghanistan 12mm/8.834ct loose stone
Sale price¥39,800
[12551668] Anthill Garnet 1.008ct Loose
Sale price¥29,800
Unheated Silky Pink Sapphire from Vietnam 2.5mm/0.084ct Loose Stone
Sale price¥6,980
Unheated Silky Pink Sapphire from Vietnam 2.4mm/0.078ct Loose
Sale price¥4,980
Madagascar sphene 0.838ct loose stone
Sale price¥12,800
Madagascar sphene 0.569ct loose stone
Sale price¥8,800
Russian Demantoid Garnet Cat's Eye (Horsetail Recognized) 0.200ct Loose
Sale price¥29,800
Detroit City Rhodochrosite 4mm/0.434ct Loose Stone
Sale price¥8,800
Mica in Quartz 0.736ct loose stone
Sale price¥6,980
Mica in Quartz 0.710ct Loose
Sale price¥5,980
Mica in Quartz 0.594ct loose stone
Sale price¥5,980
Benitoite 2.0mm/0.050ct loose stone (cabochon cut)
Sale price¥6,980
South African Sugilite 7.3mm/1.034ct loose stone
Sale price¥18,800
Jeremejevite 0.201ct loose stone
Sale price¥45,800
Brazilian Bicolor Euclase 2.4mm/0.051ct Loose Stone
Sale price¥22,800
Sri Lankan Ilmenite in Star Sapphire 3.426ct loose stone (Ratnapura)
Sale price¥49,800
Rhodochrosite from Detroit City, USA 3.1mm/0.154ct loose stone
Sale price¥29,800
Rhodochrosite from Detroit City, USA 3.2mm/0.150ct loose stone
Sale price¥29,800
Diamond 3.4mm/0.144ct loose stone (I, VS1, Good)
Sale price¥16,800
Benitoite 1.8mm/0.025ct loose stone (colorless benitoite)
Sale price¥12,800
Benitoite 1.8mm/0.025ct loose stone (colorless benitoite)
Sale price¥15,800
Benitoite 1.8mm/0.028ct loose stone (colorless benitoite)
Sale price¥14,800
Russian Demantoid Garnet (Horsetail) 2.9mm/0.194ct Loose Stone
Sale price¥29,800
Tanzanite 4.8mm/0.494ct loose stone
Sale price¥15,800
Namibian Hemimorphite 0.736ct Loose Stone
Sale price¥8,800
Nepalese Bicolor Kyanite 6.3mm/0.903ct Loose Stone
Sale price¥9,800
Bicolor Fluorite 0.582ct Loose
Sale price¥5,980
Bicolor Fluorite 0.528ct Loose
Sale price¥6,980
Mica in Quartz 0.760ct Loose
Sale price¥6,980
Mica in Quartz 0.588ct Loose Stone
Sale price¥6,980
Mica in Quartz 0.544ct Loose Stone
Sale price¥6,980
Dumortierite in quartz 0.931ct loose
Sale price¥15,800
Goshenite 6.1mm/0.905ct loose stone
Sale price¥8,800
Aventurine aquamarine 0.720ct loose
Sale price¥6,980
Purple Spinel 4.3mm/0.323ct Loose Stone
Sale price¥8,800
Violet spinel 0.301ct loose
Sale price¥9,800
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 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.