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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Sold out 1 Ethiopian Opal (Baroque)《Discount available for multiple purchases》

1 Ethiopian Opal (Baroque)《Discount available for multiple purchases》

Sold out メキシコ産ウォーターオパール1石ルース《初心者向け》

1 stone loose water opal from Mexico《For beginners》

Sold out 10月誕生石「オパール」3石セット（メキシコ産ハイアライトオパール・オーストラリア産&エチオピア産オパール）《初心者向け》 - カラッツSTORE

October birthstone "Opal" 3-stone set (Hyalite opal from Mexico, Opal from Australia & Ethiopia)《For beginners》《Discount for multiple purchases available》

Sold out [For beginners in opal]《Limited to 8 sets》October birthstone opal 3 stone set (from Australia, Peru, South Africa)《Multiple purchase discount available》

[For beginners in opal]《Limited to 8 sets》October birthstone opal 3 stone set (from Australia, Peru, South Africa)《Multiple purchase discount available》

Sold out 《限定10石》エチオピア産ブラックオパール（加熱処理）1石ルース《複数購入割引有》

《Limited to 10 stones》Ethiopian black opal (includes heat treatment and identification instructions) 1 stone loose《Discount available for multiple purchases》
Sold out オパール 1石（オーバル、8×6mm） - KARATZ STORE｜カラッツSTORE

Opal 1 stone (oval, 8 x 6mm)《Multiple purchase discount available》

Sold out 《Only one left》1 Mexican opal loose stone (fire opal, water opal, small size)《Multiple purchase discounts available》《For beginners》

《Only one left》1 Mexican opal loose stone (fire opal, water opal, small size)《Multiple purchase discounts available》《For beginners》
Sold out エチオピア産オパール 1石（ラウンドカット,2.5mm）《複数購入割引有》

1 Ethiopian opal (round cut, 2.5mm)《Discount available for multiple purchases》

Sold out Sea Creatures Gacha 1 Stone (Agate, Australian Opal) {Multiple purchase discounts available}

Sea Creatures Gacha 1 Stone (Agate, Australian Opal) {Multiple purchase discounts available}
Sold out ハイアライトオパール（1.5ctUP） - KARATZ STORE｜カラッツSTORE

Hyalite Opal (1.5ctUP)

Sold out オーストラリア産オパール ルース 1石

1 loose Australian opal (discount available for multiple purchases)

Sold out 【12523003掲載】ファイアオパール 0.769ctルース

Fire opal 0.769ct loose

Sold out Limited to 4 stones: Ethiopian black opal (heat-treated, identification instructions included) 1 loose stone (multiple purchase discounts available)

Limited to 4 stones: Ethiopian black opal (heat-treated, identification instructions included) 1 loose stone (multiple purchase discounts available)

Sold out メキシコ産ファイアオパール 0.266ctルース

Mexican Fire Opal 0.266ct Loose (Faceted Cut)

Sold out オーストラリア産ボルダーオパール 52.582ctルース

Australian boulder opal 52.582ct loose

Sold out 【ダンデライオンカット】メキシコ産ファイアオパール 7mm《コラボ》ルース ワッペン付

[Dandelion cut] Fire opal 7mm loose

Sold out 北海道産UVオパール 12.259ctルース ワッペン付

[Koshu Precious Stone Kiriko] Opal from Mexico 2.905ct 《Collaboration》 Loose with emblem

Sold out 【宝石商の道具】加熱処理のエチオピア産オパール 1石（ブラックオパールとの見分けシート付） - カラッツSTORE

1 heat-treated Ethiopian opal (includes a sheet to distinguish it from black opal)

Sold out メキシコ産ウォーターオパール 0.425ctルース

【4/1 22時販売】【さくらインカット】メキシコ産ウォーターオパール 6.0mm/0.425ctルース《コラボ》 ワッペン

Sold out オーストラリア産アイアンオパール 2.780ctルース

[On sale 3/14 at 10pm] [New Arrival in Tucson] Australian Iron Opal 2.780ct Loose
Sold out オーストラリア産アイアンオパール 1.133ctルース

[On sale 3/14 at 10pm] [New Arrival in Tucson] Australian Iron Opal 1.133ct Loose
Sold out メキシコ産ウォーターオパール 3.7mm/0.141ctルース

[On sale 3/1 at 22:00] Mexican water opal 3.7mm/0.141ct loose stone
Sold out メキシコ産ウォーターオパール 3.9mm/0.165ctルース

[On sale from 10pm on 2/26] Mexican water opal 3.9mm/0.165ct loose stone
Sold out メキシコ産ファイアオパール 0.834ctルース

[On sale 2/8 at 10pm] Mexican fire opal 0.834ct loose stone
Sold out オーストラリア産オパール 0.555ctルース

[On sale 2/2 at 10pm] Australian Opal 0.555ct Loose
Sold out メキシコ産ファイアオパール（ファセットカット） 7.7mm/0.693ctルース

Mexican Fire Opal (Faceted) 7.7mm/0.693ct Loose

Sold out K18YGメキシコ産オパール4mm/0.183ct ・アンデシン･ラブラドライトリング

K18YG Mexican Opal 4mm/0.183ct Andesine Labradorite Ring
Sold out エチオピア産オパール 14.158ct原石

Ethiopian Opal 14.158ct Rough Stone
Sold out Mexican Cantera Opal 3.778ct Loose

Mexican Cantera Opal 3.778ct Loose
Sold out [Defective] Mexican Water Opal 0.357ct 1 Stone Loose [Multiple Purchase Discount Available]

[Defective] Mexican Water Opal 0.357ct 1 Stone Loose [Multiple Purchase Discount Available]
Sold out メキシコ産ハイアライトオパール 0.430ctルース

Mexican Hyalite Opal 0.430ct Loose
Sold out カンテラオパール 3.632ctルース

Mexican Cantera Opal 3.632ct Loose
Sold out メキシコ産オパール 1.789ctルース

[Sakura Shape] Mexican Opal (Contrarus Opal) 8.8mm/1.789ct {Collaboration} Loose Patch
Sold out Limited to 5 stones: 1 loose Australian boulder opal (average 12.5ct) Multiple purchase discounts available

Limited to 5 stones: 1 loose Australian boulder opal (average 12.5ct) Multiple purchase discounts available
Sold out オーストラリア産シェルオパール（貝オパール） 102.923ct原石

Australian Shell Opal (Shell Opal) 102.923ct Rough Stone
Sold out メキシコ産カンテラオパール 3.349ctルース

Mexican Cantera Opal 3.349ct Loose
Sold out メキシコ産ファイアオパール 1.238ctルース

Mexican Fire Opal 1.238ct Loose (Contralus Opal)
Sold out メキシコ産ファイアオパール 0.443ctルース

Mexican Fire Opal 0.443ct Loose (Faceted Cut)
Sold out Hokkaido Opal (UV type) 26.668ct Loose Patch

Hokkaido Opal (UV type) 26.668ct Loose Patch

Sold out Hokkaido Opal (UV Type) 14.095ct Loose Patch

Hokkaido Opal (UV Type) 14.095ct Loose Patch

Sold out Limited to 6 stones: 1 Ethiopian opal loose stone (7 x 7 mm) Multiple purchase discounts available (faceted cut)

Limited to 6 stones: 1 Ethiopian opal loose stone (7 x 7 mm) Multiple purchase discounts available (faceted cut)
Sold out Limited to 4 stones: Ethiopian black opal (heat-treated, identification instructions included) 1 loose stone (multiple purchase discounts available)

Limited to 4 stones: Ethiopian black opal (heat-treated, identification instructions included) 1 loose stone (multiple purchase discounts available)
Sold out オーストラリア産ブラックオパール 0.501ctルース

Australian black opal 0.501ct loose stone
Sold out カンテラオパール 5.061ctルース

Mexican Cantera Opal 5.061ct Loose
Sold out カンテラオパール 3.569ctルース

Mexican Cantera Opal 3.569ct Loose
Sold out オーストラリア産ブラックオパール 1.999ctルース

[12551146] Australian black opal 1.999ct loose stone
Sold out 【金平糖】オパール 1.880ctルース

[Confetti] Opal 1.880ct Loose
Sold out メキシコ産ハイアライトオパール 0.120ctルース

Mexican Hyalite Opal 0.120ct Loose

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