Emerald Cut

Congo Bicolor Tourmaline 3.429ct Loose Sale price¥98,000

Nigerian Green Beryl 1.349ct Loose Stone Sale price¥79,800

Colombian emerald loose stone 0.167ct Sale price¥22,800

[Item 12564632] Pakistani Vanadium Sphene 1.579ct Loose Gemstone Sale price¥69,800

[10/18 10:00 PM Release] Brazilian Microlite 0.066ct Loose Gemstone with Identification Report Sale price¥12,800

[Available 10/18 at 22:00] Brazilian Microlite 0.058ct Loose Gemstone with Identification Report Sale price¥22,800

[Oct 18, 10:00 PM Sale] Brazilian Microlite 0.055ct Loose Stone with Identification Report Sale price¥25,800

[Available 10/18 at 22:00] Myanmar Poudretteite 0.065ct Loose Gemstone with Identification Report Sale price¥25,800

[Available Oct 18, 10 PM] Myanmar Pezzottaite 0.045ct Loose Gemstone with Identification Report Sale price¥18,800

[Item 12564407] Stibiotantalite from Afghanistan, 0.200ct loose stone Sale price¥45,800

[Item 12564406] Stibiotantalite from Afghanistan, 0.186ct loose stone Sale price¥45,800

[Item 12564569] Russian Non-Oiled Emerald 0.121ct Loose Gemstone Sale price¥49,800

[Available 10/12 at 10:00 PM] Indian Iolite Sunstone 1.064ct Loose Gemstone Sale price¥9,800

[Available 10/12 at 10 PM] Pakistani Vayrynenite 0.067ct Loose Gemstone Sale price¥14,800

[10/12 10 PM Release] Vayrynenite from Pakistan, 0.064ct Loose Gemstone Sale price¥14,800

[Available 10/12 at 10 PM] Tanzanian Sunstone (Illusion Sunstone) 4.124ct Loose Gemstone Sale price¥15,800

【Available 10/15, 10:00 PM】 Tanzanian Sunstone (Illusion Sunstone) 6.411ct Loose Gemstone Sale price¥19,800

【Available Oct 15 at 10:00 PM】Tanzanian Sunstone (Illusion Sunstone) 5.162ct Loose Stone Sale price¥15,800

[Available 10/15 at 10 PM] Tanzanian Sunstone (Illusion Sunstone) 6.321ct Loose Stone Sale price¥18,800

【12564534掲載】タンザニア産サンストーン（イリュージョンサンストーン） 1.383ctルース

[Available 10/14 at 10 PM] Tanzanian Sunstone (Illusion Sunstone) 1.383ct Loose Gemstone Sale price¥6,980

[10/9 10 PM Sale] Russian Non-Oiled Emerald 0.061ct Loose Stone Sale price¥35,800

[Item 12564459] Nepalese Kyanite 1.017ct Loose Gemstone Sale price¥9,800

[Item 12564612] Unheated Bicolor Sapphire from Windsor, Tanzania, 0.620ct Loose Gemstone Sale price¥75,800

[Item 12564297] Phenakite from Malyshevo, Russia, 1.491ct Loose Stone Sale price¥53,800

[Lottery Sale_01][For Winners Only][Item 12564184] East African Unheated Bicolor Sapphire 0.510ct Loose GIA Sale price¥98,000

【10/3 10 PM Release】Unheated Bicolor Sapphire from Winza, Tanzania 0.500ct Loose Gemstone with Identification Report Sale price¥59,800

[Available 10/2 at 10 PM] Unheated Bicolor Sapphire from Winza, Tanzania, 0.460ct Loose Stone with Gem Identification Report Sale price¥59,800

[10/3 10 PM Release] Afghan Hauyne 0.093ct Loose Stone Sale price¥22,800

[Available 10/7 at 10 PM] Afghan Hauyne 0.183ct Loose Gemstone Sale price¥19,800

[Item 12563638] Tanzanian Bicolor Grossular Garnet 0.904ct Loose Stone Sale price¥25,800

[Deadline 8/29 | Lottery Sale] Brazilian Indicolite Tourmaline 2.587ct Loose Stone, with NGL Certificate Sale price¥98,000

[10/2 10 PM Release] Brazilian Ametrine 16.565ct Loose Gemstone Sale price¥29,800

[Available 9/30 at 10 PM] Nepal Kyanite 1.216ct Loose Gemstone (Royal Blue Color) Sale price¥15,800

[Available 9/30 at 10:00 PM] Jeremejevite from Namibia, 0.061ct loose stone, with identification report Sale price¥15,800

[Available 9/19 at 10 PM] Jeremejevite from Namibia, 0.054ct loose stone with identification report Sale price¥14,800

[9/19 10 PM Sale] Jeremejevite from Namibia 0.053ct Loose Stone with Appraisal Report Sale price¥14,800

[Available Sept. 21, 10:00 PM] Colombian Emerald 0.267ct Loose Gemstone Sale price¥39,800

[Available 9/21, 10:00 PM] Colombian Emerald 0.152ct Loose Gemstone Sale price¥25,800

[Available 9/21, 10:00 PM] Nigerian Green Beryl 0.311ct Loose Gemstone Sale price¥7,980

[Available 9/21, 10:00 PM] Brazilian Bicolor Topaz 3.098ct Loose Gemstone Sale price¥29,800

[Available 9/27 at 10 PM] Brazilian Bicolor Topaz 1.932ct Loose Stone Sale price¥19,800

アフガニスタン産バイカラートルマリン（通称名：バイカラールベライト） 2.736ctルース

Afghanistan Bicolor Tourmaline (also known as Bicolor Rubellite) 2.736ct loose stone Sale price¥69,800

アフガニスタン産バイカラートルマリン（通称名：バイカラールベライト） 3.512ctルース

Bicolor Tourmaline from Afghanistan (common name: Bicolor Rubellite) 3.512ct loose Sale price¥89,800

アフガニスタン産バイカラートルマリン（通称名：バイカラールベライト） 2.888ctルース

Afghanistan Bicolor Tourmaline (also known as Bicolor Rubellite) 2.888ct Loose Sale price¥79,800

Namibian Jeremejevite 0.158ct loose stone Sale price¥29,800

Namibian Jeremejevite 0.405ct loose stone Sale price¥79,800

Namibian Jeremejevite 0.394ct loose stone Sale price¥79,800

Colombian emerald 0.231ct loose stone Sale price¥25,800

KARATZ Custom Made

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.

KARATZ・Five Commitments

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.