Colombian emerald 3.5mm/0.150ct loose stone
Sale price¥22,800
Pakistani Lazurite (Azurite) 0.123ct loose stone
Sale price¥45,800
Burmese Ruby 0.418ct Loose Stone Japan-Germany
Sale price¥29,800
Myanmar Ruby 0.283ct Loose
Sale price¥25,800
Emerald 0.484ct loose
Sale price¥7,980
Australian Black Opal 0.386ct Loose Stone
Sale price¥29,800
Sri Lankan Blue Sapphire 0.226ct Loose
Sale price¥14,800
Rhodochrosite from South Africa 4.2mm/0.409ct loose
Sale price¥39,800
Diamond (cabochon cut) 0.183ct loose
Sale price¥24,800
Brazilian Paraiba Tourmaline in Quartz 4.5mm/0.284ct Loose Stone
Sale price¥19,800
Kenyan Gold Sheen Sapphire 3.6mm/0.302ct Loose Stone
Sale price¥29,800
Kenyan Gold Sheen Sapphire 3.5mm/0.273ct Loose Stone
Sale price¥19,800
Brazilian Bicolor Pink Euclase 0.236ct Loose Stone, Japan-Germany
Sale price¥110,000
Brazilian Green Tourmaline 0.350ct Loose
Sale price¥8,800
Diamond 0.128ct loose stone (cabochon cut, maroon cut)
Sale price¥45,800
Namibian Jeremejevite 0.158ct loose stone
Sale price¥29,800
Namibian Jeremejevite 0.405ct loose stone
Sale price¥79,800
Namibian Jeremejevite 0.394ct loose stone
Sale price¥79,800
Colombian emerald 0.231ct loose stone
Sale price¥25,800
Pakistani Oil in Quartz 0.283ct Loose Stone
Sale price¥6,980
Pakistani Oil in Quartz 0.328ct Loose Stone
Sale price¥7,980
Colombian Trapiche Emerald 0.299ct Loose
Sale price¥16,800
Namibian Dioptase 0.134ct Loose Stone, Japan-Germany Mirror
Sale price¥49,800
Zimbabwean Apatite (UV type) 0.209ct loose stone
Sale price¥4,980
Nigerian Aventurine Aquamarine 0.471ct Loose Stone
Sale price¥6,980
Violet Sapphire 4.3mm/0.328ct Loose
Sale price¥15,800
Detroit City Rhodochrosite 4mm/0.439ct Loose Stone
Sale price¥6,980
Colombian Trapiche Emerald 0.372ct Loose
Sale price¥18,800
Tanzanite from Tanzania 0.262ct loose stone
Sale price¥8,800
Tanzania Bicolor Zoisite 0.397ct Loose Stone
Sale price¥8,800
Amazon Green Opal 0.285ct Loose (Faceted Cut)
Sale price¥6,980
Oregon Sunstone from the United States 0.292ct loose stone
Sale price¥6,980
Tanzania Bicolor Zoisite 0.278ct Loose Stone
Sale price¥4,980
Tanzania Bicolor Zoisite 0.357ct Loose Stone
Sale price¥6,980
Mozambique Aquamarine 4.9mm/0.463ct Loose Stone
Sale price¥8,800
Brazilian Euclase 0.224ct Loose Stone (Bicolor Euclase)
Sale price¥18,800
Brazilian Euclase 0.213ct loose stone (bicolor Euclase)
Sale price¥12,800
Russian rough diamond (sawable) 0.101ct loose
Sale price¥22,800
Brazilian Euclase 0.289ct loose stone
Sale price¥12,800
Brazilian Euclase 0.263ct Loose Stone (Colorless Euclase)
Sale price¥9,800
Synthetic Alexandrite 0.287ct loose stone
Sale price¥8,800
Brazilian Paraiba Tourmaline 0.360ct Loose GIA
Sale price¥298,000
Sri Lankan Yellow Sapphire 0.349ct Loose
Sale price¥12,800
Brazilian Green Tourmaline 0.376ct Loose Stone
Sale price¥7,980
Brazilian Green Tourmaline 0.332ct Loose Stone
Sale price¥7,980
Tanzania Bicolor Zoisite 4.6mm/0.489ct Loose Stone
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'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.