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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 "

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Sold out Grandidierite from Madagascar 0.167ct loose stone

Grandidierite from Madagascar 0.167ct loose stone
Sold out Grandidierite from Madagascar 0.169ct loose stone

Grandidierite from Madagascar 0.169ct loose stone
Sold out 0.361ct loose Brazilian Paraiba Tourmaline (CuO:1.0%, MnO:3.6%)

0.361ct loose Brazilian Paraiba Tourmaline (CuO:1.0%, MnO:3.6%)
Sold out Mexican Fire Agate 8.033ct Loose Stone

Mexican Fire Agate 8.033ct Loose Stone
Sold out Russian Demantoid Garnet (Horsetail) 4.2mm/0.325ct Loose Stone

Russian Demantoid Garnet (Horsetail) 4.2mm/0.325ct Loose Stone
Sold out [On Sale at 10 PM on December 9th] American Peridot 0.855ct Loose Stone (Lily Pad Inclusions)

[On Sale at 10 PM on December 9th] American Peridot 0.855ct Loose Stone (Lily Pad Inclusions)
Sold out Colombian emerald rough stone 11.155ct (with pyrite)

Colombian emerald rough stone 11.155ct (with pyrite)
Sold out [12/10 22:00 Sale] Pakistani Ludwigite Peridot 0.609ct Loose Stone

[12/10 22:00 Sale] Pakistani Ludwigite Peridot 0.609ct Loose Stone
Sold out [12/10 22:00] Mali Garnet (Grossular/Andradite Garnet) 1.008ct Loose Stone from the Republic of Mali with Certificate of Authenticity

[12/10 22:00] Mali Garnet (Grossular/Andradite Garnet) 1.008ct Loose Stone from the Republic of Mali with Certificate of Authenticity
Sold out Mali Garnet (Grossular/Andradite Garnet) 0.811ct Loose Stone from the Republic of Mali with Certificate of Authenticity

Mali Garnet (Grossular/Andradite Garnet) 0.811ct Loose Stone from the Republic of Mali with Certificate of Authenticity

Sold out Colombian emerald 3.0mm/0.098ct loose stone

Colombian emerald 3.0mm/0.098ct loose stone
Sold out [Dandelion Cut] Tibetan Color-Change Andesine 8.0mm/1.883ct Loose Gemstone

[Dandelion Cut] Tibetan Color-Change Andesine 8.0mm/1.883ct Loose Gemstone

Sold out (Lottery sale 202604) (Shinjuku Marui 20260319 removed) (12561741 listed) Mongolian Color Change Andesine 0.641ct Loose Stone

(Lottery sale 202604) (Shinjuku Marui 20260319 removed) (12561741 listed) Mongolian Color Change Andesine 0.641ct Loose Stone

Sold out [Sakura In-Cut] Mongolian Color Change Andesine 6.0mm/0.655ct Loose Stone

[Sakura In-Cut] Mongolian Color Change Andesine 6.0mm/0.655ct Loose Stone
Sold out [Sakura In-Cut] Mali Garnet (Grossular/Andradite Garnet) from the Republic of Mali, 6.0mm/0.920ct Loose Stone with Certificate of Authenticity

[Sakura In-Cut] Mali Garnet (Grossular/Andradite Garnet) from the Republic of Mali, 6.0mm/0.920ct Loose Stone with Certificate of Authenticity

Sold out Colombian Trapiche Emerald 2.318ct Loose

Colombian Trapiche Emerald 2.318ct Loose
Sold out Madagascar Bicolor Sapphire 5.8mm/1.006ct Loose

Madagascar Bicolor Sapphire 5.8mm/1.006ct Loose
Sold out ナイジェリア産グリーンベリル 0.258ctルース

[On Sale at 10 PM on December 6th] Nigerian Green Beryl 0.258ct Loose Stone
Sold out American peridot 0.334ct loose stone

American peridot 0.334ct loose stone
Sold out 0.447ct Loose Chrysoberyl Cat's Eye from Sri Lanka

0.447ct Loose Chrysoberyl Cat's Eye from Sri Lanka
Sold out 0.559ct Sri Lankan Chrysoberyl Cat's Eye Loose Stone

0.559ct Sri Lankan Chrysoberyl Cat's Eye Loose Stone
Sold out Synthetic spinel 1.793ct loose stone

Synthetic spinel 1.793ct loose stone
Sold out Colombian emerald rough stone 13.577ct

Colombian emerald rough stone 13.577ct
Sold out Colombian emerald 8.169ct rough stone

Colombian emerald 8.169ct rough stone
Sold out Colombian emerald rough stone 6.933ct

Colombian emerald rough stone 6.933ct
Sold out Colombian emerald rough stone 5.895ct

Colombian emerald rough stone 5.895ct
Sold out Mali Garnet (Grossular/Andradite Garnet) 0.872ct Loose Stone from the Republic of Mali with Certificate of Authenticity

Mali Garnet (Grossular/Andradite Garnet) 0.872ct Loose Stone from the Republic of Mali with Certificate of Authenticity
Sold out 【さくらインカット】マダガスカル産アパタイト 7.9mm/1.537ct《コラボ》ルース ワッペン

[Sakura In-Cut] Madagascar Green Apatite 7.9mm/1.537ct "Collaboration" Loose Stone Patch
Sold out オーストラリア産エメラルド 0.320ctルース

Australian emerald 0.320ct loose stone
Sold out タンザニア産バイカラーサファイア 0.380ctルース

Tanzanian Bicolor Sapphire 0.380ct Loose (Teal Color)
Sold out スリランカ産グリーンジルコン 0.734ctルース

Sri Lankan green zircon 0.734ct loose stone
Sold out ブラジル産アンダリュサイト 7.656ctルース

Brazilian Andalusite 7.656ct loose stone
Sold out ケニア産ツァボライト 0.411ctルース

Kenyan Tsavorite 0.411ct Loose Stone
Sold out ミャンマー産スターサファイア 11.192ctルース

Myanmar Star Sapphire 11.192ct Loose

Sold out ロシア産デマントイドガーネット（ホーステール認む） 0.070ctルース

Russian Demantoid Garnet (Horsetail) 0.070ct Loose
Sold out ロシア産デマントイドガーネット（ホーステール認む） 0.162ctルース

Russian Demantoid Garnet (Horsetail) 3.3mm/0.162ct Loose Stone
Sold out アメリカ産ペリドット 0.573ctルース（リリーパッドインクルージョン）

American Peridot 0.573ct Loose Stone (Lily Pad Inclusions)

coming soon Pakistani Peridot 0.649ct Loose Stone

Pakistani Peridot 0.649ct Loose Stone Sale price¥8,800
Sold out パキスタン産ペリドット 5.0mm/0.517ctルース

Pakistani Peridot 5.0mm/0.517ct Loose Stone
Sold out ジンバブエ産スフェーン 4.7mm/0.400ctルース

Zimbabwean sphene 4.7mm/0.400ct loose stone
Sold out タンザニア産コーネルピン 0.241ctルース

Tanzanian Kornerupine 0.241ct Loose Stone
Sold out コロンビア産エメラルド 0.121ctルース

Colombian emerald 0.121ct loose stone
Sold out ロンビア産エメラルド 0.126ctルース

Colombian emerald 0.126ct loose stone
Sold out マダガスカル産アンダリュサイト 1.967ctルース

1.967ct loose andalusite from Madagascar
Sold out パキスタン産ペリドット 1.176ctルース

Pakistani Peridot 1.176ct Loose Stone

Sold out コロンビア産エメラルド 3.9mm/0.200ctルース

Colombian emerald 3.9mm/0.200ct loose stone
Sold out ブラジル産アンブリゴナイト/モンテブラサイト 0.644ctルース

Brazilian Amblygonite/Montebrasite 0.644ct Loose Stone
Sold out ロシア産デマントイドガーネット（ホーステール認む） 0.135ctルース

Russian Demantoid Garnet (Horsetail) 3.0mm/0.135ct Loose Stone

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.