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 "

【6/12 22時販売】合成アレキサンドライト 1.381ctルース Sale price¥25,800

【6/12 22時販売】合成アレキサンドライト 1.076ctルース Sale price¥25,800

非加熱ブラジル産パライバトルマリン 0.065ctルース（CuO:1.6%、MnO:2.4%）

0.065ct loose Paraiba tourmaline from Brazil (CuO: 1.6%, MnO: 2.4%) Sale price¥49,800

[On Sale June 7, 10 PM] 0.210ct Untreated Colombian Emerald Loose Stone, GIA Certified Sale price¥228,000

[On sale June 7th at 10 PM] Colombian Trapiche Emerald, 1.874ct Loose Stone, with Identification Report Sale price¥69,800

[Sale on June 6 at 10 PM] Pyrite in Emerald from Chivor Mine, Colombia, 4.221 ct Loose Stone Sale price¥98,000

[Sale 10 PM JST, June 7] Alexandrite from Odisha, India 0.764 ct Loose Stone with Certificate Sale price¥29,800

[On sale June 8th, 10 PM] India, Orissa Origin Alexandrite 0.760ct Loose Stone with Certification Sale price¥19,800

[On sale June 7th at 10 PM] India Odisha Alexandrite 0.759ct Loose Gemstone with Identification Report Sale price¥22,800

[On Sale June 8th, 10 PM JST] India, Orissa Origin Alexandrite 0.715ct Loose Stone with Certification Sale price¥18,800

[On sale June 6th, 10 PM JST] Peruvian Gem Silica (Chrysocolla Chalcedony) 4.098ct Loose Stone with Japan-Germany Gemological Report Sale price¥24,800

[On sale June 6th at 10 PM JST] Peruvian Gem Silica (Chrysocolla Chalcedony) 3.210ct Loose Stone, GIA & JGGL Certified Sale price¥19,800

[Sale on 6/6 at 10 PM JST] Peruvian Gem Silica (Chrysocolla Chalcedony) 2.556ct Loose Stone with Japan-Germany Gemstone Report Sale price¥15,800

[Sales start June 5th, 10 PM] Russian Demantoid Garnet (horsetail inclusion visible) 6.8mm/1.366ct Loose Stone with Appraisal Report Sale price¥398,000

[On sale June 5th at 10 PM] Russian Demantoid Garnet (Horsetail inclusion confirmed) 6.9mm/1.589ct Loose Stone with Appraisal Report Sale price¥458,000

[On sale 6/5 at 10 PM] Russian Demantoid Garnet (horsetail inclusion visible) 5.8mm/0.876ct Loose Stone with Appraisal Report Sale price¥258,000

Loose Paraiba Tourmaline from Brazil, 0.059ct (CuO: 1.4%, MnO: 2.7%) Sale price¥45,800

Brazilian Paraiba Tourmaline 0.065ct Loose Stone (CuO: 2.0%, MnO: 2.4%) Sale price¥49,800

Paraiba Tourmaline from Brazil 0.056ct loose stone (CuO: 1.7%, MnO: 2.3%) Sale price¥45,800

0.062ct Loose Paraiba Tourmaline from Brazil (CuO: 1.7%, MnO: 2.5%) Sale price¥47,800

Brazilian Paraiba Tourmaline 0.058ct Loose Gemstone (CuO: 2.0%, MnO: 2.2%) Sale price¥39,800

Brazilian Paraiba Tourmaline 0.056ct Loose Stone (CuO:2.1%, MnO:2.2%) Sale price¥39,800

Tanzanian Kornerupine 0.172ct loose stone Sale price¥12,800

Madagascar Green Sapphire 0.253ct Loose Sale price¥9,800

Tanzania Green Zoisite 0.709ct Loose Stone Sale price¥16,800

[On sale May 30th at 10 PM] Kenyan Tsavorite 4.1mm/0.386ct Loose Stone Sale price¥15,800

[On sale May 31, 10 PM JST] Tsavorite from Kenya 4.0mm/0.357ct loose stone Sale price¥12,800

【Sale Starts May 30th at 10 PM JST】Brazilian Seafoam Tourmaline 4.1mm/0.303ct Loose Stone Sale price¥16,800

[On sale May 30th at 10 PM] Brazilian Seafoam Tourmaline 4.2mm/0.319ct Loose Stone Sale price¥17,800

[On sale May 31, 10 PM JST] Brazilian Seafoam Tourmaline 4.1mm/0.280ct Loose Sale price¥15,800

[On sale June 6, 10 PM JST] Brazilian Seafoam Tourmaline 0.334ct Loose Stone Sale price¥16,800

[On sale June 5th at 10 PM] Brazilian Alexandrite 0.128ct Loose Stone Sale price¥29,800

[On sale June 5th, 10 PM] Colombian Euclase 2.365ct Loose Stone Sale price¥59,800

Synthetic Moissanite 8.679ct loose stone Sale price¥29,800

Paraiba tourmaline from Brazil 0.071ct loose Sale price¥19,800

Colombian pyrite emerald 3.817ct loose stone Sale price¥59,800

Tanzanian Chrome Tourmaline 0.760ct Loose Stone Sale price¥5,980

American Peridot 0.339ct Loose Stone Sale price¥6,980

American Peridot 0.528ct Loose Stone Sale price¥8,800

Colombian Trapiche emerald 0.418ct rough stone Sale price¥39,800

[Sale on 5/24 at 10 PM] Sri Lankan Chrysoberyl Cat's Eye 4.1mm/0.490ct Loose Stone Sale price¥15,800

ロシア産デマントイドガーネットキャッツアイ（ホーステール認む） 0.200ctルース

Russian Demantoid Garnet Cat's Eye (Horsetail Recognized) 0.200ct Loose Sale price¥18,800

Australian black opal 0.650ct loose Sale price¥15,800

Colombian emerald 0.145ct loose stone with precious stone Sale price¥29,800

Tanzanian Kornerupine 0.300ct Loose Stone Sale price¥18,800

Tanzanian Kornerupine 0.210ct loose stone Sale price¥11,000

Tanzanian Kornerupine 0.220ct loose stone Sale price¥6,980

Tanzanian Kornerupine 0.229ct loose stone Sale price¥9,800

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.