Sky blue topaz 1.719ct loose stone
Sale price¥8,800
Brazilian Bicolor Tourmaline 7.2mm/1.326ct Loose Stone
Sale price¥18,800
[12550851] 2.944ct Mozambique pink tourmaline loose stone
Sale price¥39,800
[On sale June 6, 10 PM JST] Malawi Moonstone 2.233ct Loose Stone
Sale price¥15,800
[On sale June 13th, 10 PM JST] Malawi Moonstone 2.055ct Loose Stone
Sale price¥16,800
Mexican Hyalite Opal 1.215ct Loose (Faceted Cut)
Sale price¥8,800
[On sale June 5th, 10 PM] Colombian Euclase 2.365ct Loose Stone
Sale price¥59,800
Mexican Opal 1.666ct Loose
Sale price¥14,800
[On Sale May 22 at 10 PM JST] Australian Black Opal 1.393ct Loose Stone
Sale price¥48,800
[On sale May 10th at 10 PM] Tanzanian Tanzanite 0.406ct Loose Stone
Sale price¥12,800
Lavender quartz (scorolite) 2.181ct loose stone
Sale price¥8,800
South African Sugilite 7.3mm/1.034ct loose stone
Sale price¥14,800
Burmese ruby 3.72ct loose GIA/CGL
Sale price¥298,000
Green Spodumene 6.419ct loose stone
Sale price¥15,800
Tibetan bicolor andesine 2.657ct loose stone
Sale price¥19,800
Ethiopian Opal 2.131ct Loose
Sale price¥9,800
Ethiopian Opal 1.694ct Loose
Sale price¥7,980
Synthetic Spinel 1.668ct Loose Stone (Synthetic Blue Spinel)
Sale price¥12,800
Lepidocrocite in quartz 1.087ct loose
Sale price¥5,980
Zimbabwean Bi-Color Euclase Rough 2.976 ct
Sale price¥59,800
Oregon Sunstone from the United States 0.941ct loose stone
Sale price¥12,800
3.073ct Mozambique Almandine Garnet Loose Stone
Sale price¥22,800
Mexican Fire Opal 1.424ct Loose
Sale price¥39,800
Bulgarian Sphalerite 7.6mm/2.233ct Loose
Sale price¥69,800
Sunstone (Illusion Sunstone) 1.908ct loose
Sale price¥8,800
2.946 ct loose barite from Guizhou, China, with a gemological report
Sale price¥69,800
Mica in Quartz 0.864ct Loose Stone
Sale price¥5,980
Moss agate 1.285ct loose stone
Sale price¥5,980
Brazilian Limonite in Topaz 6.579ct loose stone (with rainbow)
Sale price¥18,800
Bloodshot Iolite Sunstone 2.121ct Loose
Sale price¥12,800
Brazilian Medusa Quartz (Paraiba Quartz) 1.405ct Loose Stone
Sale price¥8,800
Australian Black Opal 1.705ct Loose
Sale price¥12,800
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.