Indigolite tourmaline 0.386ct loose
Sale price¥7,980
Indigolite tourmaline 0.674ct loose
Sale price¥9,800
Indigolite tourmaline 0.691ct loose
Sale price¥18,800
Silky diamond 2.7mm/0.090ct loose
Sale price¥12,800
Silky diamond 2.8mm/0.097ct loose
Sale price¥14,800
Silky diamond 2.7mm/0.086ct loose
Sale price¥14,800
Rhodochrosite 0.317ct loose from Detroit City
Sale price¥29,800
Rhodochrosite 0.331ct loose from Detroit City
Sale price¥29,800
Rhodochrosite 0.300ct loose from Detroit City
Sale price¥29,800
Sri Lankan Ratotta Topaz 7.709ct Loose (White Topaz)
Sale price¥15,800
Sri Lankan Ratotta Topaz 4.170ct Loose (White Topaz)
Sale price¥8,800
Sri Lankan Ratotta Topaz 9.589ct Loose (White Topaz)
Sale price¥15,800
Sri Lankan Ratotta Topaz 9.926ct Loose (White Topaz)
Sale price¥19,800
[Dandelion cut] Synthetic rutile 7.5mm/2.630ct loose
Sale price¥49,800
[Dandelion cut] Ametrine 14mm/9.238ct loose
Sale price¥59,800
[Colorful] Pt950 Play Night Pendant Top (Necklace Top)
Sale price¥39,800
Brazilian unheated particolor Paraiba tourmaline 0.84ct loose GIA
Sale price¥2,580,000
Lepidolite from Tanzania 1.035ct Ruth Japanese German edition
Sale price¥9,800
Indian bag site 2.010ct loose
Sale price¥8,800
Indian bag site 2.206ct loose
Sale price¥9,800
Indian bag site 2.408ct loose
Sale price¥9,800
Indian bag site 2.163ct loose
Sale price¥9,800
Indian bag site 1.513ct loose
Sale price¥9,800
Indian bag site 2.218ct loose
Sale price¥9,800
Indian bag site 1.763ct loose
Sale price¥9,800
Diamond 0.534ct rough stone
Sale price¥9,800
Ainsel "Semi-custom ring setting"
Sale price¥148,000
Paraiba tourmaline from Mozambique 0.089ct loose
Sale price¥7,980
Paraiba tourmaline from Mozambique 0.083ct loose
Sale price¥6,580
Brazilian dumortierite in quartz 1.142ct loose
Sale price¥9,800
Brazilian dumortierite in quartz 2.443ct loose
Sale price¥24,800
Brazilian dumortierite in quartz 2.227ct loose
Sale price¥18,800
Brazilian dumortierite in quartz 1.796ct loose
Sale price¥15,800
Brazilian dumortierite in quartz 3.247ct loose
Sale price¥25,800
Brazilian dumortierite in quartz 1.517ct loose
Sale price¥12,800
Alexandrite cat's eye 0.941ct loose
Sale price¥22,800
Australian black opal 0.310ct loose
Sale price¥8,800
Australian black opal 0.616ct loose
Sale price¥12,800
Australian black opal 0.559ct loose
Sale price¥12,800
Brazilian imperial topaz 2.093ct loose
Sale price¥29,800
Brazilian imperial topaz 0.359ct loose
Sale price¥15,800
Spiritosa (no side stones) {Semi-custom ring setting}
Sale price¥74,800
Pomme Blanche "Semi-custom ring setting"
Sale price¥84,800
Lazurite in quartz 0.353ct loose
Sale price¥9,800
Lazurite in quartz 0.877ct loose
Sale price¥25,800
Lazurite in quartz 0.959ct loose
Sale price¥29,800
Blue tourmaline 0.369ct loose Japanese-German book
Sale price¥8,800
Myanmar orange jade (jade) 0.531ct loose
Sale price¥6,980
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.