Birthstone list
Sri Lankan glass body (sapphire crystal) 8.654ct rough stone
Sale price¥19,800
Sri Lankan glass body (sapphire crystal) 11.126ct rough stone
Sale price¥29,800
Sri Lankan glass body (sapphire crystal) 8.812ct rough stone
Sale price¥19,800
Sri Lankan glass body (sapphire crystal) 9.933ct rough stone
Sale price¥35,800
Sri Lankan glass body (sapphire crystal) 10.140ct rough stone
Sale price¥29,800
Sri Lankan glass body (sapphire crystal) 8.328ct rough stone
Sale price¥25,800
Sri Lankan glass body (sapphire crystal) 2.754ct rough stone
Sale price¥8,800
Sri Lankan glass body (sapphire crystal) 5.355ct rough stone
Sale price¥9,800
Sri Lankan glass body (sapphire crystal) 4.150ct rough stone
Sale price¥9,800
Sri Lankan glass body (sapphire crystal) 6.836ct rough stone
Sale price¥12,800
Sri Lankan glass body (sapphire crystal) 6.612ct rough stone
Sale price¥12,800
Sri Lankan glass body (sapphire crystal) 7.134ct rough stone
Sale price¥9,800
Sri Lankan glass body (sapphire crystal) 5.573ct rough stone
Sale price¥9,800
Sri Lankan glass body (sapphire crystal) 4.669ct rough stone
Sale price¥9,800
Sri Lankan glass body (sapphire crystal) 4.126ct rough stone
Sale price¥8,800
Brazilian pink tourmaline 1.458ct loose stone
Sale price¥39,800
Amazon Green Opal 0.814ct Loose (Faceted Cut)
Sale price¥8,800
Amazonian green opal 0.517ct loose stone (faceted cut)
Sale price¥8,800
Amazon Green Opal 0.285ct Loose (Faceted Cut)
Sale price¥6,980
Brazilian copper rutilated quartz 1.334ct loose stone
Sale price¥9,800
Tanzanite from Tanzania 0.491ct loose stone
Sale price¥8,800
Tanzanite from Tanzania 0.466ct loose stone
Sale price¥8,800
Sri Lankan Moonstone 1.959ct Loose
Sale price¥12,800
Sri Lankan Moonstone 0.561ct Loose
Sale price¥6,980
Brazilian Tourmaline (untreated) 5.120ct loose stone
Sale price¥39,800
Tanzanian Almandine Garnet 1.103ct Loose Stone
Sale price¥9,800
Mozambique Aquamarine 4.9mm/0.463ct Loose Stone
Sale price¥9,800
Vietnam Aquamarine 0.626ct Loose
Sale price¥8,800
Vietnam Aquamarine 1.309ct Loose Stone
Sale price¥12,800
Tanzanian Grape Garnet 0.785ct Loose Stone
Sale price¥9,800
Tanzanian bicolor sapphire 0.125ct loose stone
Sale price¥4,980
Tanzanian bicolor sapphire 0.124ct loose stone
Sale price¥5,980
Tanzanian bicolor sapphire 0.118ct loose stone
Sale price¥4,980
Tanzanian bicolor sapphire 0.149ct loose stone
Sale price¥6,980
Tanzanian bicolor sapphire 0.152ct loose stone
Sale price¥6,980
Vietnam Aquamarine 5.1mm/0.410ct Loose Stone
Sale price¥6,980
Vietnam Aquamarine 5.9mm/0.700ct Loose Stone
Sale price¥8,800
Vietnam Aquamarine 5.0mm/0.739ct Loose Stone
Sale price¥9,800
Vietnam Aquamarine 5.1mm/0.457ct Loose Stone
Sale price¥6,980
Brazilian Green Tourmaline 0.182ct Loose Stone
Sale price¥8,800
Mexican Cantera Opal 20.655ct Loose
Sale price¥19,800
Synthetic Opal 1.914ct Loose
Sale price¥15,800
Mexican Cantera Opal 3.297ct Loose
Sale price¥29,800
YAG (Yttrium Aluminum Garnet) 7mm/1.686ct Loose Stone
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.