Madagascar Blue Sapphire 0.302ct Loose
Sale price¥15,800
Madagascar pink sapphire 0.346ct loose stone
Sale price¥15,800
Madagascar pink sapphire 0.243ct loose stone
Sale price¥8,800
Bicolor tourmaline 4.448ct loose stone
Sale price¥55,800
Sri Lankan Blue Sapphire 0.519ct Loose
Sale price¥14,800
Tanzania Green Zoisite 0.709ct Loose Stone
Sale price¥16,800
Kunzite from Afghanistan 12mm/8.834ct loose stone
Sale price¥39,800
[On sale June 2 at 10 PM] Loose Diamond 3.7mm/0.197ct (H, VS-1, Good)
Sale price¥29,800
Loose diamond 3.1mm/0.117ct (D, VVS-2, VeryGood)
Sale price¥23,800
Diamond 3.3mm/0.172ct Loose (G, VS-1, Flanders Cut)
Sale price¥45,800
0.093ct Hackmanite from Afghanistan
Sale price¥16,800
Afghan Hackmanite 0.205 ct Loose
Sale price¥36,800
Brazilian Seafoam Tourmaline, 4.1mm/0.303ct loose stone
Sale price¥16,800
[On sale June 2nd, 10 PM] Spanish Sphalerite 4.445ct Loose Stone
Sale price¥79,800
0.464 ct Mozambique Ruby Loose Stone with Identification Report
Sale price¥29,800
Kochi Prefecture Blood Coral 2.294ct Loose
Sale price¥19,800
Kochi Prefecture red coral 2.187ct loose
Sale price¥19,800
Kochi Prefecture Deep Red Coral 1.975ct Loose Stone
Sale price¥18,800
Synthetic Moissanite 8.679ct loose stone
Sale price¥29,800
Paraiba tourmaline from Brazil 0.071ct loose
Sale price¥19,800
[Cat cut] Brazilian dendritic agate 0.774ct loose stone
Sale price¥6,980
Madagascar sphene 0.838ct loose stone
Sale price¥9,800
Greenland sapphire 0.592ct loose stone
Sale price¥18,800
Almandine Garnet 0.814ct Loose Stone
Sale price¥7,980
Almandine Garnet 1.049ct Loose Stone
Sale price¥9,800
Myanmar Star Spinel 2.030ct Loose
Sale price¥69,800
Mozambique pink spinel 0.670ct loose stone
Sale price¥22,800
Sri Lankan Star Sapphire 6.477ct Loose
Sale price¥49,800
Sri Lankan Star Sapphire 7.111ct Loose
Sale price¥59,800
Purple spinel 0.403ct loose stone
Sale price¥5,980
0.165ct Unheated Silky Pink Sapphire from Vietnam
Sale price¥5,980
Romanesite in Quartz 4.825ct loose stone
Sale price¥9,800
Tanzanian Chrome Tourmaline 0.760ct Loose Stone
Sale price¥5,980
American red beryl 0.160ct loose
Sale price¥89,800
Mozambique Aquamarine 0.216ct Loose Stone
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.