0.416ct Loose Mozambique Ruby with Gemstone Identification Report
Sale price¥29,800
Brazilian Dumortierite in Quartz 1.290ct Loose
Sale price¥12,800
Brazilian Blue Tourmaline in Quartz 4.241ct Loose
Sale price¥19,800
Brazilian Black Garden Quartz 5.030ct Loose Gemstone
Sale price¥12,800
Dumortierite in quartz from Brazil 7.3mm/1.729ct loose stone
Sale price¥12,800
Synthetic Rutile 4.3mm/0.447ct Loose
Sale price¥12,800
Sri Lankan orange sapphire 0.654ct loose with certificate
Sale price¥29,800
Sri Lankan Yellow Sapphire 0.815ct Loose Stone with Appraisal
Sale price¥15,800
0.333ct Loose Mahenge (Pink) Spinel from Tanzania with Certificate
Sale price¥29,800
0.147ct Loose Colombian Emerald with Gemological Report
Sale price¥12,800
Colombian Emerald 3.3mm/0.167ct Loose Stone with Appraisal
Sale price¥24,800
Columbia Emerald 3.3mm/0.158ct Loose Gemstone with Certificate
Sale price¥18,800
Kochi Prefecture Aka Sango (Red Coral) 10.209ct Loose Stone
Sale price¥29,800
Malawi Moonstone 2.114 ct Loose Gemstone
Sale price¥12,800
Malawi Moonstone 2.001ct Loose
Sale price¥12,800
1.939 ct loose Malawi moonstone
Sale price¥12,800
[On sale August 3rd at 10 PM] Malawi Moonstone 2.183ct Loose Stone
Sale price¥12,800
Brazilian Euclase 0.289ct loose stone
Sale price¥12,800
Brazilian Euclase 0.695ct Loose Stone
Sale price¥18,800
Tanzanian Lavender Tanzanite 0.558ct Loose Stone
Sale price¥12,800
Tanzanian bicolor tanzanite 0.573ct loose stone
Sale price¥12,800
Tanzanian Lavender Tanzanite 0.577ct Loose Stone
Sale price¥12,800
Russian rough diamond (sawable) 0.088ct loose
Sale price¥19,800
Sri Lankan Yellow Sapphire 0.349ct Loose
Sale price¥12,800
Almandine Garnet 1.471ct Loose Stone
Sale price¥14,800
Almandine Garnet 1.388ct Loose Stone
Sale price¥11,800
Almandine Garnet 1.988ct Loose Stone
Sale price¥16,800
Almandine Garnet 1.485ct Loose Stone
Sale price¥15,800
Almandine Garnet 1.058ct Loose Stone
Sale price¥12,800
Blue sapphire 0.287ct loose
Sale price¥12,800
Russian Diamond Rough (Sawable) 0.103ct Loose (Trigon)
Sale price¥25,800
Tanzanian Kornerupine 0.212ct loose stone
Sale price¥19,800
Dioptase from Brazil, 0.956ct, loose stone, with鑑別書
Sale price¥23,800
1.841ct Loose Tanzanian Zircon with Certificate of Authenticity
Sale price¥18,800
Tanzanian Orange Zircon 1.305ct Loose Stone with Appraisal Report
Sale price¥13,800
Synthetic rutile 0.942ct loose stone
Sale price¥14,800
[Updated 12552163] Benitoite 0.099ct loose stone
Sale price¥29,800
Madagascar sapphire 0.448ct loose stone
Sale price¥15,800
Zimbabwe Euclase 0.067ct Loose Gemological Report
Sale price¥15,800
American Ceylanite 2.666ct Loose Stone with Certification
Sale price¥15,800
Rough diamond from Sierra Leone (sawable) 0.089ct rough (trigon)
Sale price¥27,800
Jeremejevite from Namibia 0.095ct Loose Stone with Certification
Sale price¥24,800
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.