Login

emerald

Emerald is the birthstone of May. It is a type of beryl, the same mineral as aquamarine, and is a green gemstone. It is also known as the stone that Cleopatra once loved, and many anecdotes remain. It is characterized by its brittle nature with many scratches and inclusions, so much so that there is a saying that ``There are fewer emeralds without scratches than people with no defects.''

Karatz GemMagazine
" Emerald "

Sort by
Sold out [Jeweler's Tools] Limited Edition Chelsea Color Filter Emerald 2-Piece Set

[Jeweler's Tools] Limited Edition Chelsea Color Filter Emerald 2-Piece Set
Sold out コロンビア産エメラルドキャッツアイ1石ルース（平均0.35ct)《初めての方向け》

Colombian emerald cat's eye 1 stone loose (average 0.35ct)《For first-time users》《Multiple purchase discount available》

Sold out [Sales start 9/5 at 10 PM] 《Limited 5 stones》 Raw Colombian Emerald (avg. 0.52ct) 《Multi-buy discount available》

[Sales start 9/5 at 10 PM] 《Limited 5 stones》 Raw Colombian Emerald (avg. 0.52ct) 《Multi-buy discount available》
Sold out Limited to 7 stones! May birthstone special offer! Colombian emerald cat's eye, 1 loose stone (highly transparent cat's eye) Multiple purchase discounts available

Limited to 7 stones! May birthstone special offer! Colombian emerald cat's eye, 1 loose stone (highly transparent cat's eye) Multiple purchase discounts available
Sold out One loose, oil-free emerald from Russia (2.2mm, round cut) (Multiple purchase discounts available)

One loose, oil-free emerald from Russia (2.2mm, round cut) (Multiple purchase discounts available)

Sold out One loose, oil-free emerald from Russia (2.8mm, round cut) (Multiple purchase discounts available)

One loose, oil-free emerald from Russia (2.8mm, round cut) (Multiple purchase discounts available)
Sold out Limited to 6 stones: One loose, oil-free emerald from Russia (3.2mm, round cut) [Multiple purchase discounts available]

Limited to 6 stones: One loose, oil-free emerald from Russia (3.2mm, round cut) [Multiple purchase discounts available]
Sold out 《Limited to 6 sets》 Colombian Reverse Trapiche Emerald & Brazilian Emerald (Sugarloaf Cut) 2-Stone Set《Multiple purchase discount available》

《Limited to 6 sets》 Colombian Reverse Trapiche Emerald & Brazilian Emerald (Sugarloaf Cut) 2-Stone Set《Multiple purchase discount available》
Sold out Pt900 エメラルド 0.47ct ダイヤモンド0.13ctペンダントトップ（ネックレストップ）鑑別書

[Available 9/18 at 10 PM] [Colori] Pt900 Emerald 0.47ct & Diamond 0.13ct Pendant Top (Necklace Top) with Appraisal Report
Sold out Pt900 タンザナイト0.99ct・ダイヤモンド・エメラルド ペンダントトップ鑑別書

[Available 9/18 at 10 PM] [Coloriful] Pt900 Tanzanite 0.99ct, Diamond, & Emerald Pendant Top (Includes Appraisal Report)
Sold out コロンビア産エメラルド 0.070ctルース

【Available 9/21 at 10 PM】 Colombian Emerald 0.070ct Loose Stone
Sold out コロンビア産パイライト・雲母インエメラルド 0.739ctルース

Colombian pyrite-mica emerald 0.739ct loose stone
Sold out コロンビア産トラピッチェエメラルド 1.591ctルース

[Lottery Sale 0731_05] Colombian Trapiche Emerald 1.591ct Loose Gemstone with Japanese and German Gemological Certificates
Sold out K18WG ブルーサファイア パライバトルマリン、アクアマリン、エメラルド、アイスブルーダイヤモンド(トリートメント)、ブルーサファイア、イエローサファイア、アパタイト、ペリドット、タンザナイト、ブルートパーズリング鑑別書

[Available 9/9 at 10 PM] [Colori] K18WG Blue Sapphire, Paraiba Tourmaline, Aquamarine, Emerald, Ice Blue Diamond, Yellow Sapphire, Apatite, Peridot, Tanzanite, Blue Topaz Ring with Appraisal Certificate
Sold out コロンビア産ノンオイルエメラルド 0.080ctルース

[Lottery Sale 0825_09] Colombian Non-Oil Emerald 0.080ct Loose GIA
Sold out (In Stock) Lottery Sale 4 [For Winners Only] [Published on 12559711] Colombian Oil-Free Emerald 0.050ct Loose Stone (NONE) GIA

(In Stock) Lottery Sale 4 [For Winners Only] [Published on 12559711] Colombian Oil-Free Emerald 0.050ct Loose Stone (NONE) GIA
Sold out コロンビア産パイライトインエメラルド 4.680ctルース

[Deadline: Thursday, May 14th, 10 am JST] Lottery Sale_0508_10 Colombian Pyrite in Emerald Loose Stone, 4.680ct
Sold out Pt900 コロンビア産ミントカラーエメラルド 4mm/0.22ct ・ダイヤモンド0.16ctペンダントトップ（ネックレストップ）鑑別書

Pt900 Colombia Mint Color Emerald 4mm/0.22ct & Diamond 0.16ct Pendant Top with Certificate

Sold out コロンビア産パイライト・雲母インエメラルド 0.271ctルース 鑑別書

[On sale August 2nd at 10 PM] Colombian pyrite and mica-in-emerald 0.271ct loose stone with gemological report
Sold out コロンビア・コスケス鉱山トラピッチェエメラルド 0.177ctルース 鑑別書

Colombia Cosquez Mine Trapiche Emerald 0.177ct Loose Gemstone with Certification
Sold out コロンビア産エメラルド 1.470ctルース

Colombian Emerald, 1.470 ct, Loose, with Origin Report (Houseki Kyo)

Sold out コロンビア産エメラルド 0.792ctルース

[Sale begins August 5th at 10 PM] Colombian Emerald 0.792ct Loose Stone with Certification
Sold out ザンビア産エメラルド 1.267ctルース

Zambian Emerald 1.267ct Loose Stone with Certificate
Sold out ザンビア産エメラルド 1.112ctルース 鑑別書

Zambian Emerald 1.112 ct Loose Gemstone with Certificate

Sold out コロンビア産パイライトインエメラルド 4.222ctルース

Colombian Pyrite in Emerald 4.222ct Loose Stone

Sold out コロンビア産エメラルド 0.135ctルース

Loose Colombian emerald, 0.135 ct, Hōki Kyō (Japan Gem Laboratory)
Sold out Pt900 エメラルド 0.30ct ・ダイヤモンド0.01ctペンダントトップ（ネックレストップ）

[Karafuru] Pt900 Emerald 0.30ct / Diamond 0.01ct Pendant Top
Sold out コロンビア産パイライトインエメラルド 3.817ctルース

Colombian pyrite emerald 3.817ct loose stone

Sold out コロンビア産エメラルド 0.167ctルース

Colombian emerald 0.167ct loose stone with jewel
Sold out コロンビア産パイライト・雲母インエメラルド 0.844ctルース

Colombian pyrite-mica emerald 0.844ct loose stone
Sold out 【12562862掲載】コロンビア産トラピッチェエメラルド 0.448ctルース

Colombian Trapiche Emerald, 0.446 ct, Loose Stone, with Certificate
Sold out ブラジル産グリーンベリル 0.559ctルース

0.559ct Brazilian Emerald Cat's Eye Loose Stone with Certificate
Sold out Non-Oil Emerald 0.555ct Loose Stone by Nikkei

Non-Oil Emerald 0.555ct Loose Stone by Nikkei
Sold out Pt950 ブラジル産バイカラーエメラルド 1.084ct リング

[COLORFLE] Pt950 Brazil Bi-Color Emerald 1.084ct / Ice Blue Diamond 0.062ct Ring

Sold out Colombian non-oil emerald (NONE) 0.060ct loose GIA

Colombian non-oil emerald (NONE) 0.060ct loose GIA
Sold out Colombian emerald 0.153ct rough stone

Colombian emerald 0.153ct rough stone
Sold out 【12562785掲載】コロンビア産エメラルドキャッツアイ 0.574ctルース

Colombian emerald cat's eye 0.574ct loose stone
Sold out コロンビア産エメラルド 4.7mm/0.468ctルース

Colombian Emerald 4.7mm/0.468ct Loose Stone

Sold out コロンビア産エメラルドキャッツアイ 1.571ctルース

Colombian emerald 1.571ct loose stone pendant top
Sold out コロンビア産パイライトインエメラルド 2.780ctルース

Colombian Pyrite Inclusion Emerald 2.780ct Loose Rare Stone [Limited to 1 pc] ¥198,000 12562799

Sold out Loose Columbian Pyrite in Emerald 3.346 ct

Loose Columbian Pyrite in Emerald 3.346 ct

Sold out コロンビア産パイライトインエメラルド 2.503ctルース

2.503 ct Loose Emerald with Pyrite from Colombia

Sold out Colombian mica in emerald 1.314ct loose

Colombian mica in emerald 1.314ct loose
Sold out Colombian No-Oil Emerald 0.120ct Loose Stone GIA

Colombian No-Oil Emerald 0.120ct Loose Stone GIA
Sold out 18K Yellow Gold Colombian Emerald Ring

18K Yellow Gold Colombian Emerald Ring
Sold out Colombian trapiche emerald (reverse trapiche) 3.0mm/0.107ct rough stone (faceted cut)

Colombian trapiche emerald (reverse trapiche) 3.0mm/0.107ct rough stone (faceted cut)
Sold out 【12561946掲載】ブラジル産エメラルドインクォーツ 2.358ctルース

Brazilian emerald in quartz 2.358ct loose stone
Sold out 【12561945掲載】ブラジル産エメラルドインクォーツ 3.367ctルース

Brazilian emerald in quartz 3.367ct 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.