green/green gems

There are a variety of green and green-toned gemstones, including emerald, jade, peridot, demantoid garnet, diopside, and green tourmaline. Even if the colors are similar, highly transparent gemstones and opaque gemstones give a very different impression. The atmosphere also varies depending on the saturation, brightness, and cut.

Karatz Gem Magazine
" 10 Green Gems "

Brazilian Green Tourmaline 0.703ct Loose Stone Sale price¥15,800

Brazilian Green Tourmaline 0.764ct Loose Stone Sale price¥8,800

[10/13 (Tue) 10:00 AM Deadline: Lottery Sale_07] Brazilian Alexandrite 0.188ct Loose Stone GIA Sale price¥79,800

Brazilian bicolor tourmaline cat's eye 22.056ct loose stone Sale price¥188,000

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

Tibetan bicolor andesine 1.542ct loose stone Sale price¥12,800

Colombian Trapiche Emerald 1.494ct Loose Sale price¥69,800

非加熱ブラジル産パライバトルマリン 0.044ctルース（CuO:1.6%、MnO:2.0%）

Unheated Brazilian Paraiba Tourmaline 0.044ct loose stone (CuO: 1.6%, MnO: 2.0%) Sale price¥39,800

非加熱ブラジル産パライバトルマリン 0.068ctルース（CuO:1.4%、MnO:2.3%）

Unheated Brazilian Paraiba Tourmaline 0.068ct loose stone (CuO: 1.4%, MnO: 2.3%) Sale price¥45,800

Indian Moss Agate 0.755ct Loose Stone Sale price¥6,980

Brazilian Green Tourmaline 1.059ct Loose Stone Sale price¥15,800

Brazilian Green Tourmaline 0.350ct Loose Sale price¥8,800

Brazilian Green Tourmaline 1.193ct Loose Stone Sale price¥39,800

Brazilian Green Tourmaline 11.453ct Loose Stone Sale price¥158,000

Brazilian Green Tourmaline 9.495ct Loose Sale price¥128,000

Brazilian Green Tourmaline 4.374ct Loose Stone Sale price¥88,000

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

【10/29 22時販売】ナイジェリア産グリーンベリル 4.0mm/0.232ctルース Sale price¥6,980

【10/27 22時販売】ナイジェリア産グリーンベリル 0.306ctルース Sale price¥7,980

【10/27 22時販売】ナイジェリア産グリーンベリル 0.144ctルース Sale price¥6,980

【10/27 22時販売】ナイジェリア産グリーンベリル 0.213ctルース Sale price¥8,800

【10/27 22時販売】ナイジェリア産グリーンベリル 0.348ctルース Sale price¥8,800

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

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

[Item 12564642] Colombian Trapiche Emerald 1.036ct Loose Stone Sale price¥69,800

[12565160] Tsavorite from Kenya, 0.439ct loose stone Sale price¥29,800

[12565159] Tsavorite from Kenya, 0.314ct loose stone Sale price¥18,800

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

[12560786] Nigerian Green Beryl 0.621ct Loose Stone Sale price¥8,800

Brazilian Mint-Colored Tourmaline 0.294ct Loose Stone Sale price¥15,800

Zambian Emerald 0.188ct Loose Stone Sale price¥9,800

[Available 10/14 at 22:00] Pakistani Vanadium Sphene 1.690ct Loose Gemstone with Identification Report Sale price¥69,800

[10/10 10:00 PM Release] Turkish Diopside 0.450ct Loose Stone Sale price¥9,800

[Available 10/14 at 10 PM] Russian Demantoid Garnet (horsetail inclusions visible) 0.206ct Loose Gemstone Sale price¥79,800

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

[Available 10/14 at 22:00] Russian Emerald 0.247ct Loose Gemstone Sale price¥49,800

[Available 10/11 at 22:00] Colombian Trapiche Emerald 0.981ct Loose Gemstone with Appraisal Report Sale price¥58,800

[Sat, Sep 5, 10:00 AM Deadline: Lottery Sale_10] Colombian Non-Oiled Emerald 0.290ct Loose Stone GIA Sale price¥178,000

[Ref: 12564306] Brazilian Emerald Cat's Eye 0.582ct Loose Gemstone Sale price¥22,800

[Available 10/2 at 10 PM] Mozambique Paraiba Tourmaline 0.135ct Loose Stone Sale price¥7,980

[Available 10/2, 10:00 PM] Mozambique Paraiba Tourmaline 0.096ct Loose Gemstone Sale price¥6,980

[10/3 10 PM Sale] Colombian Emerald 0.126ct Loose Gemstone with Appraisal Report Sale price¥39,800

[10/3 10 PM Sale] Colombian Emerald 0.211ct Loose Gemstone with Identification Report Sale price¥59,800

[10/10 10:00 PM Release] Mongolian Color-Change Andesine 7.0mm/1.327ct Loose Gemstone Sale price¥14,800

【Available 10/3 at 10 PM】 Colombian Mica-in-Emerald 4.2mm/0.249ct Loose Gemstone with Certificate of Authenticity Sale price¥22,800

[Available Oct 11, 10 PM] Colombian Pyrite and Mica in Emerald 0.432ct Loose Stone with Identification Report Sale price¥35,800

[Available Oct 4, 10 PM] Synthetic Alexandrite 0.264ct Loose Gemstone Sale price¥9,800

[Available 10/4, 10 PM] Lab-created Alexandrite 0.614ct Loose Stone Sale price¥15,800

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.