Custom Cut
Mica in Quartz 0.865ct Loose Stone
Sale price¥5,980
Brazilian Indicolite Tourmaline 0.352ct Loose Stone with Certification
Sale price¥29,800
Oregon Sunstone 0.272ct Loose
Sale price¥6,980
Oregon Sunstone 0.575ct loose
Sale price¥9,800
Lavender quartz (scorolite) 2.181ct loose stone
Sale price¥8,800
Lavender quartz (scorolite) 2.740ct loose stone
Sale price¥8,800
Sunstone (Illusion Sunstone) 0.553ct Loose
Sale price¥7,980
South African Sugilite 0.814ct loose stone
Sale price¥12,800
Yellow sapphire 0.229ct loose stone
Sale price¥8,800
Spodumene 9.001ct loose stone
Sale price¥22,800
Spodumene 9.730ct loose stone
Sale price¥22,800
Andalusite 0.672ct loose
Sale price¥8,800
Spanish Andalusite 0.435ct loose stone
Sale price¥6,980
Brazilian Imperial Topaz 0.413ct Loose Stone
Sale price¥9,800
Brazilian Imperial Topaz 0.402ct Loose Stone
Sale price¥9,800
Synthetic Spinel 1.668ct Loose Stone (Synthetic Blue Spinel)
Sale price¥12,800
Lepidocrocite in quartz 0.308ct loose
Sale price¥6,980
Lepidocrocite in quartz 1.087ct loose
Sale price¥5,980
GGG (Gadolinium Gallium Garnet) 3.046ct Loose Stone
Sale price¥18,800
Tanzanian Rhodolite Garnet 5.9mm/1.084ct Loose
Sale price¥12,800
0.308ct Unset Yellow Sapphire (Sri Lankan)
Sale price¥13,800
Spanish Sphalerite 6.2mm/1.320ct loose stone
Sale price¥12,800
Finnish Labradorite 56.209ct Loose Gemstone
Sale price¥16,800
Tanzanian Zoisite 1.290ct Loose Stone with Appraisal
Sale price¥19,800
【Sakura Shape】Synthetic Sapphire 8.8mm/3.631ct Loose Stone
Sale price¥39,800
Diamond 0.402ct Loose (H, VS2, Flanders Cut)
Sale price¥79,800
Pt950 Ice Blue Diamond (Treatment) 0.197ct Ring
Sale price¥128,000
Brazilian Dumortierite in Quartz 0.387ct loose stone
Sale price¥3,980
3.073ct Mozambique Almandine Garnet Loose Stone
Sale price¥22,800
Tanzanite 1.004ct loose stone
Sale price¥18,800
Mexican Fire Opal 1.833ct Loose
Sale price¥39,800
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.