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opal

Opal is the birthstone for October. It is broadly divided into two types: "precious opal" which exhibits play-of-color effect, and "common opal" which does not. The impression changes greatly depending on whether there is a play-of-color effect or not, but the atmosphere also changes depending on the way the play-of-color appears and the pattern, and if you own one, you will want to collect many more, making it a collector's item.

Karatz GemMagazine
" opal "

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メキシコ産カンテラオパール 7.460ctルース

[On sale 11/13 at 22:00] Mexican Cantera Opal 7.460ct Loose Sale price¥29,800
メキシコ産カンテラオパール 1.794ctルース

[On sale at 10pm on 10/23] Mexican Cantera Opal 1.794ct loose stone Sale price¥8,800
カンテラオパール 2.982ctルース

[On sale at 10pm on 10/18] Mexican Cantera Opal 2.982ct loose stone Sale price¥14,800
カンテラオパール 2.219ctルース

[On sale at 10pm on 10/18] Mexican Cantera Opal 2.219ct loose stone Sale price¥9,800
カンテラオパール 1.534ctルース

[On sale at 10pm on 10/18] Mexican Cantera Opal 1.534ct ​​loose stone Sale price¥8,800
カンテラオパール 4.542ctルース

[On sale at 10pm on 10/18] Mexican Cantera Opal 4.542ct loose stone Sale price¥12,800
メキシコ産カンテラオパール 11.105ctルース

[On sale 10/23 22:00] Mexican Cantera Opal 11.105ct Loose Sale price¥12,800
ファイアオパール 3.639ctルース - KARATZ STORE｜カラッツSTORE

[On sale at 10pm on 10/17] Mexican fire opal 3.639ct loose stone Sale price¥7,980
[On sale from 10/18 at 22:00] [Limited to 12 stones] 1 loose iron opal from Australia (average 28ct, October birthstone opal) [Multiple purchase discounts available]

[On sale from 10/18 at 22:00] [Limited to 12 stones] 1 loose iron opal from Australia (average 28ct, October birthstone opal) [Multiple purchase discounts available] Sale price¥7,980
【KEN氏】ファイアオパール 1.578ctルース - カラッツSTORE

[On sale at 10pm on 10/17] Mexican fire opal 1.578ct loose stone Sale price¥12,800
[On sale from 10/17 at 10pm] [Sakura Incut] Mexican Hyalite Opal 5.8mm/0.53ct [Collaboration] Loose Patch

[On sale from 10/17 at 10pm] [Sakura Incut] Mexican Hyalite Opal 5.8mm/0.53ct [Collaboration] Loose Patch Sale price¥39,800
ファイアオパール 0.780ctルース

[On sale at 10pm on 10/16] Mexican fire opal 0.780ct loose stone Sale price¥12,800
【クローバーインカット】メキシコ産オパール 7mmルース ワッペン付 - カラッツSTORE

[Clover in cut] Mexican opal 7mm/0,648ct {Collaboration} Loose patch Sale price¥45,800
[On sale from 10/14 at 22:00] [Limited to 7 stones] 1 loose iron opal from Australia (average 7ct, October birthstone opal) [Multiple purchase discounts available]

[On sale from 10/14 at 22:00] [Limited to 7 stones] 1 loose iron opal from Australia (average 7ct, October birthstone opal) [Multiple purchase discounts available] Sale price¥4,980
オーストラリア産シェルオパール（貝オパール） 51.801ct原石

Australian Shell Opal (Shell Opal) 51.801ct Rough Stone Sale price¥25,800
[On sale from 10/11 at 22:00] {Limited to 4 stones} Ethiopian black opal (heat-treated, identification instructions included) 1 loose stone {Multiple purchase discounts available}

[On sale from 10/11 at 22:00] {Limited to 4 stones} Ethiopian black opal (heat-treated, identification instructions included) 1 loose stone {Multiple purchase discounts available} Sale price¥3,980
Pt900/K18ブラックオパールキャッツアイ0.736 ペンダント（ネックレス）

[On sale at 10pm on 13/10] Pt900/K18 Australian black opal cat's eye 0.736ct diamond pendant (necklace) by Chuho Sale price¥258,000
Limited to 7 stones: 1 loose Australian boulder opal (average 25 carats) Multiple purchase discounts available

Limited to 7 stones: 1 loose Australian boulder opal (average 25 carats) Multiple purchase discounts available Sale price¥8,800
ファイアオパール 0.953ctルース

Mexican Fire Opal 6.7mm/0.953ct Loose Sale price¥25,800
ファイアオパール 0.911ctルース

Mexican Fire Opal 7.1mm/0.911ct Loose Sale price¥25,800
ファイアオパール 0.333ctルース

Mexican Fire Opal 4.9mm/0.333ct Loose Sale price¥8,800
ファイアオパール 0.236ctルース

Mexican Fire Opal 4.7mm/0.236ct Loose Sale price¥8,800
Limited to 12 stones Tanzanian Milky Opal Cat's Eye (7.5 x 5.5 mm) Multiple purchase discounts available

Limited to 12 stones Tanzanian Milky Opal Cat's Eye (7.5 x 5.5 mm) Multiple purchase discounts available Sale price¥3,980
ブルーオパール 2.530ctルース

Peruvian Blue Opal 2.530ct Loose Sale price¥19,800
オーストラリア産ブラックオパール 0.675ctルース

Australian black opal 0.675ct loose stone Sale price¥24,800
オーストラリア産ボルダーオパール 0.768ctルース

Australian Boulder Opal 0.768ct Loose Sale price¥12,800
オーストラリア産ブラックオパール 9.709ctルース

Australian black opal 9.709ct loose stone Sale price¥158,000
オーストラリア産ボルダーオパール 23.164ctルース

Australian Boulder Opal 23.164ct Loose Sale price¥128,000
メキシコ産ファイアオパール 0.576ctルース

Mexican Fire Opal 0.576ct Loose (Faceted Cut) Sale price¥9,800
メキシコ産オパール 0.492ctルース

Mexican Opal 0.492ct Loose (Faceted Cut) Sale price¥9,800
メキシコ産ファイアオパール 0.212ctルース

Mexican Fire Opal 0.212ct Loose (Faceted Cut) Sale price¥8,800
メキシコ産ファイアオパール 1.222ctルース

Mexican Fire Opal 1.222ct Loose (Faceted Cut) Sale price¥12,800
オーストラリア産ホワイトオパール 0.562ctルース

Australian White Opal 0.562ct Loose Sale price¥8,800
メキシコ産ファイアオパール 0.213ctルース

Mexican Fire Opal 0.213ct Loose (Faceted Cut) Sale price¥9,800
メキシコ産ファイアオパール 0.356ctルース（ファセットカット）

Mexican Fire Opal 0.356ct Loose (Faceted Cut) Sale price¥9,800
メキシコ産ファイアオパール 0.792ctルース（ファセットカット）

Mexican Fire Opal 6.9mm/0.792ct Loose (Faceted Cut) Sale price¥19,800
【12547802掲載】メキシコ産ファイアオパール 2.587ctルース

Mexican Fire Opal 2.587ct Loose Sale price¥18,800
【12552526掲載】エチオピア産オパール 0.688ctルース

Ethiopian Opal 5.2mm/0.688ct Loose (Sphere) Sale price¥6,980
メキシコ産カンテラオパール 4.835ctルース

Mexican Cantera Opal 4.835ct Loose Sale price¥19,800
オーストラリア産シェルオパール（貝オパール） 73.321ct原石

Australian Shell Opal (Shell Opal) 73.321ct Rough Stone Sale price¥49,800
エチオピア産オパール 5.4mm/0.818ctルース

Ethiopian Opal 5.4mm/0.818ct Loose (Sphere Cut) Sale price¥9,800
アマゾン産グリーンオパール 0.814ctルース

Amazon Green Opal 0.814ct Loose (Faceted Cut) Sale price¥8,800
アマゾン産グリーンオパール 0.517ctルース

Amazonian green opal 0.517ct loose stone (faceted cut) Sale price¥8,800
アマゾン産グリーンオパール 0.285ctルース

Amazon Green Opal 0.285ct Loose (Faceted Cut) Sale price¥6,980
エチオピア産ハニカムオパール 2.056ctルース

Ethiopian honeycomb opal 2.056ct loose stone Sale price¥17,800
アイアンオパール 184.250ctルース　日独鑑

Iron Opal 184.250ct Loose Stone, Japan-Germany Exchange Sale price¥19,800
メキシコ産カンテラオパール 20.655ctルース

Mexican Cantera Opal 20.655ct Loose Sale price¥19,800
合成オパール 1.914ctルース

Synthetic Opal 1.914ct Loose Sale price¥15,800

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.

The fifth reprint has been decided and is now on sale at bookstores nationwide and online.

Written by KARATZ, book “Jewelry Illustrated Book”

The book provides explanations about over 300 types of gemstones, from new standard birthstones to rare stones that are hard to find, as well as a diary of our company representative, Mr. Koyama's, gemstone shopping experience in Thailand and Sri Lanka, and tips for photographing gemstones, allowing you to learn about the appeal of gemstones from various perspectives.

KARATZ・Five Commitments