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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 "

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[Available 8/30 at 10 PM] Colombian Emerald Rough (Avg. 0.25ct) &lt;&lt;2 stones remaining&gt;&gt; &lt;<multi-buy discounts available>&gt;</multi-buy>

[Available 8/30 at 10 PM] Colombian Emerald Rough (Avg. 0.25ct) <<2 stones remaining>> <> Sale price¥7,980
[8/29 10 PM Sale] &lt;&lt;11 Stones Only&gt;&gt; Raw Emerald from Muzo, Colombia (Avg. 0.20ct) &lt;<multi-purchase discount available>&gt;</multi-purchase>

[8/29 10 PM Sale] <<11 Stones Only>> Raw Emerald from Muzo, Colombia (Avg. 0.20ct) <> Sale price¥5,980
[Available 9/4 at 10 PM] 《16 Stones Limited》 Colombian Emerald Raw Stones (Average 0.35ct) 《Multiple Purchase Discount Available》

[Available 9/4 at 10 PM] 《16 Stones Limited》 Colombian Emerald Raw Stones (Average 0.35ct) 《Multiple Purchase Discount Available》 Sale price¥5,980
[On sale 9/4 at 10:00 PM] 《Limited to 7 stones》 Colombian mint-colored emerald rough (average 0.51ct) 《Multi-buy discount available》

[On sale 9/4 at 10:00 PM] 《Limited to 7 stones》 Colombian mint-colored emerald rough (average 0.51ct) 《Multi-buy discount available》 Sale price¥6,980
【Available 9/23 at 10 PM】《Limited to 6 stones》Rough Colombian Emerald (avg. 0.75ct) 《Multi-buy discount available》

【Available 9/23 at 10 PM】《Limited to 6 stones》Rough Colombian Emerald (avg. 0.75ct) 《Multi-buy discount available》 Sale price¥9,800
【Available 9/21 at 10 PM】《Limited to 11 stones》KEN-cut approx. 3mm loose gemstone gacha (Colombian mint-color emerald, spinel, zircon, etc.)《Multi-purchase discount available》

【Available 9/21 at 10 PM】《Limited to 11 stones》KEN-cut approx. 3mm loose gemstone gacha (Colombian mint-color emerald, spinel, zircon, etc.)《Multi-purchase discount available》 Sale price¥2,980
コロンビア産エメラルド 0.150ctルース

[Available 9/22, 10 PM] Colombian Emerald 0.150ct Loose Stone Sale price¥12,800
コロンビア産パイライト付きエメラルド 0.634ct原石

[Available 9/19 at 10 PM] Colombian Emerald with Pyrite, 0.634ct Raw Gemstone Sale price¥19,800
コロンビア産パイライト付きエメラルド 0.981ct原石

[On sale 9/19 at 22:00] Colombian Emerald with Pyrite, 0.981ct Raw Gemstone Sale price¥29,800
コロンビア産エメラルド 1.645ct原石

[Available 9/19 at 10:00 PM] 1.645ct Colombian Emerald Rough Stone Sale price¥49,800
コロンビア産エメラルド 0.078ctルース

【Available 9/22, 10:00 PM】 Colombian Emerald 0.078ct Loose Gemstone Sale price¥18,800
コロンビア産エメラルド 0.267ctルース

[Available Sept. 21, 10:00 PM] Colombian Emerald 0.267ct Loose Gemstone Sale price¥39,800
コロンビア産エメラルド 0.152ctルース

[Available 9/21, 10:00 PM] Colombian Emerald 0.152ct Loose Gemstone Sale price¥25,800
ブラジル産ミントカラーエメラルド 0.451ctルース

[Available Sept 21, 10 PM] Brazilian Mint Color Emerald 0.451ct Loose Stone Sale price¥15,800
ザンビア産エメラルド 0.199ctルース

【Available 9/21, 10 PM】 Zambian Emerald 0.199ct Loose Gemstone Sale price¥9,800
コロンビア産パイライト・雲母インエメラルド 0.628ctルース

Colombian pyrite-mica emerald 0.628ct loose stone Sale price¥29,800
コロンビア産エメラルド 0.231ctルース

Colombian emerald 0.231ct loose stone Sale price¥25,800
コロンビア産トラピッチェエメラルド 0.299ctルース

Colombian Trapiche Emerald 0.299ct Loose Sale price¥16,800
コロンビア産エメラルド 0.247ctルース

[Available 9/12, 10:00 PM] Colombian Emerald 0.247ct Loose Gemstone Sale price¥39,800
コロンビア産トラピッチェエメラルド 0.372ctルース

Colombian Trapiche Emerald 0.372ct Loose Sale price¥18,800
コロンビア産パイライトインエメラルド 2.988ctルース

[Lottery Sale 0731_06] Colombian Pyrite in Emerald 2.988 ct Loose Stone with Japanese and German Gemological Certificates Sale price¥228,000
コロンビア産ノンオイルエメラルド 0.370ctルース

[Lottery Sale 0731_10] Colombian Muzo Non-Oil Emerald 0.370ct Loose GIA Sale price¥298,000
コロンビア産ノンオイルエメラルド 0.090ctルース

[Lottery Sale 0825_10] Colombian Non-Oil Emerald 0.090ct Loose GIA Sale price¥128,000
ザンビア産ノンオイルエメラルド 0.540ctルース

[Lottery Sale 0812_18] Zambian Non-Oil Emerald 0.540ct Loose GIA Sale price¥178,000
コロンビア産ミントカラーエメラルド 0.359ctルース

[Available 8/30 at 10 PM] Colombian Mint Color Emerald 0.359ct Loose Stone Sale price¥12,800
コロンビア産エメラルド 0.123ctルース

【9/1 10 PM Release】Colombian Emerald 0.123ct Loose Gemstone Sale price¥18,800
コロンビア産エメラルド ルース・原石2石セット（ラウンドカット3mm）

Colombian emerald loose rough stone set of 2 stones (round cut 3mm)《Multiple purchase discount available》 Sale price¥6,980
[6/ 10 PM JST Release] 《Limited to 11 Stones》Bicolor Gemstone Gacha featuring Paraiba Tourmaline and Euclase 《Bulk Purchase Discount Available》

[6/ 10 PM JST Release] 《Limited to 11 Stones》Bicolor Gemstone Gacha featuring Paraiba Tourmaline and Euclase 《Bulk Purchase Discount Available》 Sale price¥3,980
[On sale 8/15 at 10 PM JST] Colombian Emerald Gacha featuring Shimizu Kisaki's 8mm Clover In-cut (regularly 79,800 JPY) - only 15 stones available! (Bonus green beryl included) [Multiple purchase discount available]

[On sale 8/15 at 10 PM JST] Colombian Emerald Gacha featuring Shimizu Kisaki's 8mm Clover In-cut (regularly 79,800 JPY) - only 15 stones available! (Bonus green beryl included) [Multiple purchase discount available] Sale price¥6,980
Single loose Russian oil-free emerald (1.6-1.7mm, princess cut) {Multiple purchase discounts available}

Single loose Russian oil-free emerald (1.6-1.7mm, princess cut) {Multiple purchase discounts available} Sale price¥9,800
Limited to 8 stones: 1 loose kite cut stone (illusion sunstone, sapphire, emerald, spessartine garnet, etc.) Multiple purchase discounts available

Limited to 8 stones: 1 loose kite cut stone (illusion sunstone, sapphire, emerald, spessartine garnet, etc.) Multiple purchase discounts available Sale price¥5,980
[Limited to 6 stones] Contains 2 stones in total: 1 gemstone (rough stone) that is actually featured in a gemstone encyclopedia + 1 emerald rough stone.

[Limited to 6 stones] Contains 2 stones in total: 1 gemstone (rough stone) that is actually featured in a gemstone encyclopedia + 1 emerald rough stone. Sale price¥4,980
エメラルド 15.219ctルース 日独鑑

Natural Emerald from Brazil, 15.219 ct, Loose Stone, Nichidoku Identification Report Sale price¥398,000
コロンビア産パイライト・雲母インエメラルド 0.409ctルース 鑑別書

[Featured on 12563911] Colombian Pyrite and Mica in Emerald, 0.409ct Loose Gemstone Sale price¥32,800
コロンビア産パイライト・雲母インエメラルド 5.5mm/0.614ctルース 鑑別書

[Published on 12563914] Loose Colombian Pyrite and Mica in Emerald, 0.614 ct Sale price¥45,800
コロンビア産パイライト・雲母インエメラルド 5.0mm/0.500ctルース 鑑別書

[12563912 listed] Colombian Pyrite and Mica in Emerald 0.500ct Loose Stone Sale price¥39,800
ブラジル産エメラルドキャッツアイ 6.083ctルース 日独鑑

【Lottery Sale 0731_08】Brazilian Emerald Cat's Eye 6.083ct Loose Gemstone with Japanese and German Gemological Report Sale price¥258,000
コロンビア産ノンオイルエメラルド 1.760ctルース

【#202607 Akihabara Pop-up Store - Currently at Offsite Location】【Shinjuku Marui Annex 202605 Offsite Location】Lottery Sale 11【For Winners Only】【Published on 12559975】Colombian Non-Oil Emerald 1.760ct Loose GIA Sale price¥1,580,000
コロンビア産パイライト・雲母インエメラルド 0.617ctルース

[On sale August 19th at 10 PM] Colombian Pyrite and Mica in Emerald 5.5mm/0.617ct Loose Stone with Certification Sale price¥45,800
コロンビア産パイライト・雲母インエメラルド 1.192ctルース 鑑別書

Colombian Pyrite, Mica in Emerald 1.192ct Loose Stone with Certificate Sale price¥79,800
コロンビア産パイライト・雲母インエメラルド 4.8mm/0.360ctルース 鑑別書

[Sale on 8/6 at 10 PM JST] Colombian Pyrite and Mica in Emerald, 4.8mm/0.360ct, Loose Stone with Certificate Sale price¥29,800
コロンビア産トラピッチェエメラルド 0.252ctルース

[On sale August 1, 10 PM] Colombian Cosquez Trapiche Emerald 0.252ct Loose Stone with Certificate Sale price¥35,800
コロンビア産トラピッチェエメラルド 0.231ctルース

[On sale August 1, 10 PM JST] Colombian Cosquez Trapiche Emerald, 0.231 ct, Loose Stone with Certificate Sale price¥33,800
コロンビア・コスケス産トラピッチェエメラルド 0.199ctルース 鑑別書

[On sale August 14th at 10 PM] Colombian Cosquez Trapiche Emerald, 0.199ct Loose Stone with Appraisal Sale price¥29,800
コロンビア産エメラルド 0.107ctルース

[On sale August 2 at 10 PM] Colombian Emerald 0.107 ct Loose Gemstone with Certificate Sale price¥12,800
コロンビア産トラピッチェエメラルド 0.184ctルース

0.184ct Trapiche Emerald Loose from Cosquez, Colombia, with Appraisal Report Sale price¥25,800
コロンビア産トラピッチェエメラルド 0.157ctルース

Colombian Trapiche Emerald (from Cosquez) 0.157ct Loose Stone with Certificate Sale price¥22,800
コロンビア・コスケス鉱山トラピッチェエメラルド 0.144ctルース 鑑別書

Columbia Cosquez Mine Trapiche Emerald 0.144ct Loose with Identification Report Sale price¥22,800

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.