Brazilian parti-color tourmaline 2.702ct loose stone
Sale price¥69,800
【9/18 22時販売】ブラジル産バイカラーシトリン 4.027ctルース
Sale price¥3,980
【9/22 22時販売】マラウイ産ムーンストーン（マラウイムーンストーン） 3.677ctルース
Sale price¥19,800
【9/22 22時販売】マラウイ産ムーンストーン（マラウイムーンストーン） 4.333ctルース
Sale price¥19,800
【9/22 22時販売】マラウイ産ムーンストーン（マラウイムーンストーン） 3.996ctルース
Sale price¥18,800
【9/21 22時販売】ブラジル産バイカラートパーズ 3.098ctルース
Sale price¥29,800
Czech Aragonite 8.0mm/2.082ct Loose Stone
Sale price¥59,800
Spanish Sphalerite 8mm/2.796ct loose stone
Sale price¥69,800
Japanese style twin crystal 4.715ct raw stone
Sale price¥9,800
Japanese style twin crystal 3.472ct raw stone
Sale price¥7,980
Almandine garnet 2.421ct loose
Sale price¥16,800
3.324ct Tanzanian Purple Zoisite Rough Stone
Sale price¥5,980
【9/7 22時販売】ブラジル産バイカラートルマリン 3.337ctルース
Sale price¥59,800
【9/5 22時販売】ブラジル産パライバトルマリン 4.022ctルース
Sale price¥45,800
[Lottery Sale 0620_03] South African Rhodochrosite 2.694ct Loose Stone
Sale price¥228,000
Spanish Sphalerite 2.726ct loose stone
Sale price¥32,800
Spanish bicolor sphalerite 3.504ct loose stone
Sale price¥35,800
Brazilian Sky Blue Topaz (untreated) 2.116ct loose stone
Sale price¥12,800
Brazilian Morganite 4.720ct loose stone
Sale price¥98,000
Brazilian Dolomite 4.070ct Loose Stone, Japan-Germany Mirror
Sale price¥79,800
Tanzanian bicolor tanzanite rough stone 2.750ct
Sale price¥7,980
【9/4 22時販売】ブラジル産カラーシフトアメジスト 2.649ctルース
Sale price¥9,800
【9/7 22時販売】ブラジル産スカイブルートパーズ 3.437ctルース
Sale price¥9,800
【9/1 22時販売】ブラジル産パライバトルマリンインクォーツ 2.737ctルース
Sale price¥45,800
[Published 12562277] Brazilian Marcasite in Quartz Loose Stone 4.188ct
Sale price¥12,800
[Lottery Sale ②_202608_10] Yellow Sapphire 2.190ct Loose GIT
Sale price¥158,000
[Posted 12549460] Star peridot from Myanmar 3.748ct loose
Sale price¥19,800
[Updated 12546024] Ametrine 4.206ct loose
Sale price¥39,800
[Published as 12563385] Tanzanian Zircon 3.964ct Loose
Sale price¥39,800
Kochi Prefecture Aka Coral 4.627ct Loose Gemstone
Sale price¥22,800
[12552852] Citrine 2.734ct loose stone
Sale price¥22,800
[12555446] White topaz 3.619ct loose stone
Sale price¥8,800
【Sakura Shape】Synthetic Sapphire 8.8mm/3.631ct Loose Stone
Sale price¥39,800
[Listed on 12562258] Eudialyte from Canada 2.796 ct loose stone
Sale price¥39,800
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.