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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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コロンビア産パイライトインエメラルド 15.291ctルース

Colombian pyrite in emerald 15.291ct loose Sale price¥1,000,000
コロンビア産トラピッチェエメラルド 0.923ct原石

Colombian Trapiche Emerald 0.923ct Rough Stone Sale price¥45,800
K18YG レッドベリル 0.239ct リング

K18YG American Red Beryl 0.239ct Emerald, Red Beryl and Diamond Ring by Nikkei Sale price¥158,000
コロンビア産エメラルド 0.150ctルース

Colombian emerald 3.5mm/0.150ct loose stone Sale price¥22,800
ノンオイルエメラルド 1.070ctルース グベリン鑑別書

Non-Oil Emerald 1.070ct Loose Gübelin Certificate Sale price¥698,000
エメラルド 0.484ルース

Emerald 0.484ct loose Sale price¥18,800
コロンビア産トラピッチェエメラルド 1.494ctルース

Colombian Trapiche Emerald 1.494ct Loose Sale price¥69,800
ノンオイルエメラルド 1.030ctルース グベリン グベリン（Gübelin）鑑別書

Non-Oil Emerald 1.030ct Loose Gübelin Gübelin Certificate Sale price¥698,000
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 Sale price¥36,800
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¥35,800
コロンビア産エメラルド 0.231ctルース

Colombian emerald 0.231ct loose stone Sale price¥28,800
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¥19,800
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
コロンビア産パイライトインエメラルド 13.691ctルース

Colombian pyrite emerald 13.691ct loose stone Sale price¥398,000
エメラルド 0.308ctルース

Emerald 0.308ct loose stone Sale price¥14,800
コロンビア産パイライトインエメラルド 6.415ctルース

Colombian pyrite in emerald 6.415ct loose stone Sale price¥298,000
コロンビア産ノンオイルエメラルド 0.290ctルース GIA

Colombian oil-free emerald 0.290ct loose stone GIA Sale price¥198,000
Sold out 【宝石商の道具】冷却ヒビ入れ染色クォーツ・天然エメラルド見分け2点セット - KARATZ STORE｜カラッツSTORE

[Jeweler's Tools] Cooling Cracked Dyed Quartz/Natural Emerald Identification 2-piece Set (Discount available for multiple purchases)

Sold out Emerald Gacha (including Emerald Cat's Eye and special cuts) featuring Russian non-oil emeralds, etc. 💎 (Multiple purchase discount available)

Emerald Gacha (including Emerald Cat's Eye and special cuts) featuring Russian non-oil emeralds, etc. 💎 (Multiple purchase discount available)
Sold out [Sale 10 PM on June 5] "Limited 17 Stones" Emerald Gacha 💎 Win Koshu Kiseki Kiriko, rose-cut, and mint-colored emeralds, normally priced at 88,800 yen (multiple purchase discount available)

[Sale 10 PM on June 5] "Limited 17 Stones" Emerald Gacha 💎 Win Koshu Kiseki Kiriko, rose-cut, and mint-colored emeralds, normally priced at 88,800 yen (multiple purchase discount available)
Sold out 《Limited to 20 Stones》Emerald Gacha: Win a 2.2ct Columbia Emerald Koshu-Kiseki Cut (normally 79,800 yen) or an Emerald Cat's Eye! 《Multiple Purchase Discount Available》

《Limited to 20 Stones》Emerald Gacha: Win a 2.2ct Columbia Emerald Koshu-Kiseki Cut (normally 79,800 yen) or an Emerald Cat's Eye! 《Multiple Purchase Discount Available》
Sold out Single loose Russian oil-free emerald (2.1mm, square cut) {Multiple purchase discounts available}

Single loose Russian oil-free emerald (2.1mm, square cut) {Multiple purchase discounts available}
Sold out Limited to 7 stones: One loose, oil-free Russian emerald (1.5-1.6mm, step cut) [Multiple purchase discounts available]

Limited to 7 stones: One loose, oil-free Russian emerald (1.5-1.6mm, step cut) [Multiple purchase discounts available]

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 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 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

[Posted 12563909] Colombian Pyrite and Mica in Emerald 0.271ct Loose Gemstone
Sold out ザンビア産エメラルド 1.267ctルース

[On sale 7/31 at 10 PM] Zambian Emerald 1.267ct Loose Stone with Appraisal
Sold out ザンビア産エメラルド 1.112ctルース 鑑別書

[On sale July 31, 10 PM] Zambian Emerald 1.112ct Loose Stone 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

[On sale 7/12 at 10 PM] Colombian Emerald 0.135ct Loose Stone - Houki-kyo
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）

[On sale July 16th at 10 PM] [Colorfri] 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 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

[Sales start 10 PM, May 26th] Colorful: Pt950 Brazilian Bi-Color Emerald 1.084ct and Ice Blue Diamond 0.062ct Ring

Sold out [Sales start 10:00 PM on May 4th] Colombian non-oil emerald (NONE) 0.060ct loose GIA

[Sales start 10:00 PM on May 4th] 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

【On sale May 2nd, 10 PM JST】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

[On sale 5/5 at 22:00] 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

[Sale starts 10 PM JST on 5/14] 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

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.