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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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オパール 6.560ctルース

Opal 6.560ct loose Sale price¥39,800
カンテラオパール 8.970ctルース

[Posted 12533051] Cantera Opal 8.970ct Loose Sale price¥12,800
カンテラオパール 5.750ctルース

Cantera Opal 5.750ct loose Sale price¥18,800
北海道産UVオパール 7.860ctルース

(Fluorescent photo) [Published in 12532441] UV opal from Hokkaido 7.860ct loose with emblem Sale price¥8,800
北海道産UVオパール 11.900ctルース

[12532439 published] Hokkaido UV opal 11.900ct loose with patch Sale price¥8,800
【12530741掲載】オパール 1.020ctルース

Opal 1.020ct loose Sale price¥29,800
メキシコ産カンテラオパール 2.125ctルース

[On Sale at 10 PM on August 17th] Mexican Cantera Opal 2.125ct Loose Sale price¥39,800
メキシコ産カンテラオパール 5.882ctルース

[On Sale at 10 PM on August 16th] Mexican Cantera Opal 5.882ct Loose Sale price¥39,800
【カメリアカット】オパール 14mmルース ワッペン付

[Available at 10 PM on August 13th] [Camellia Cut] Ethiopian Opal 5.083ct/14mm Loose Sale price¥69,800
メキシコ産ファイアオパール（ファセットカット） 0.359ctルース

[On Sale at 10 PM on August 20th] Mexican Fire Opal (Faceted) 0.359ct Loose Sale price¥9,800
メキシコ産ファイアオパール（ファセットカット） 0.167ctルース

[On Sale at 10 PM on August 20th] Mexican Fire Opal (Faceted) 0.167ct Loose Sale price¥8,800
[12560183] Mexican Fire Opal (Faceted) 0.207ct Loose

[12560183] Mexican Fire Opal (Faceted) 0.207ct Loose Sale price¥12,800
メキシコ産ファイアオパール（ファセットカット） 0.515ctルース

[On Sale at 10 PM on August 20th] Mexican Fire Opal (Faceted) 0.515ct Loose Sale price¥12,800
オーストラリア産ボルダーオパール 13.190ctルース

Australian boulder opal 13.190ct loose Sale price¥18,800
【12542836掲載】グリーンオパール 15.950ctルース

Green opal 15.950ct loose Sale price¥29,800
カンテラオパール 14.581ctルース

Cantera opal 14.581ct loose Sale price¥22,800
オパール 21.584ctルース 日独

Opal 21.584ct loose Japanese and German Sale price¥8,800
メキシコ産カンテラオパール 34.760ctルース

Mexican cantera opal 34.760ct loose Sale price¥39,800
ブラックオパール 2.293ctルース

Black opal 2.293ct loose Sale price¥98,000
エチオピア産オパール 136.601ct原石

[Posted 12540116] Ethiopian opal 136.601ct rough stone Sale price¥29,800
メキシコ産ハイアライトオパール 1.587ctルース

Mexican Hyalite Opal 1.587ct Loose Sale price¥9,800
メキシコ産カンテラオパール 4.456ctルース

Mexican Cantera Opal 4.456ct Loose Sale price¥39,800
オパール 426.985ct原石

Opal 426.985ct rough stone Sale price¥29,800
カンテラオパール 8.454ctルース

Mexican cantera opal 8.454ct loose Sale price¥3,980
【甲州貴石切子plusthree】メキシコ産ファイアオパール 1.981ctルース ワッペン付

[Koshu precious stone Kiriko plusthree] Fire opal from Mexico 1.981ct loose with emblem Sale price¥49,800
【甲州貴石切子】メキシコ産ファイアオパール 2.630ct《コラボ》ルース ワッペン付

[Koshu Precious Stone Kiriko] Fire Opal from Mexico 2.630ct 《Collaboration》 Loose with emblem Sale price¥55,800
メキシコ産ファイアオパール 6mm/0.698ctルース（ローズカット）

Mexican fire opal 6mm/0.698ct loose (rose cut) Sale price¥14,800
ピンクオパール・ブルーオパール2石セット（小・大サイズ） - KARATZ STORE｜カラッツSTORE

Pink opal/blue opal 2 stone set (small/large size)《Discount available for multiple purchases》 Sale priceFrom ¥1,980
1 green opal from Amazon《Discount available for multiple purchases》

1 green opal from Amazon《Discount available for multiple purchases》 Sale price¥2,980
【5/21 22時販売】【KEN氏】 メキシコ産オパール1石（約3.5mm）《複数購入割引有》 - カラッツSTORE

1 Mexican opal (approx. 3.5mm) {Multiple purchase discounts available} Sale price¥3,980
1 stone of green opal from South Africa (discount available for multiple purchases)

1 stone of green opal from South Africa (discount available for multiple purchases) Sale priceFrom ¥2,980
Limited to 10 stones Mexican Cantera Opal 1 loose stone (10 x 8 cm) Multiple purchase discounts available

Limited to 10 stones Mexican Cantera Opal 1 loose stone (10 x 8 cm) Multiple purchase discounts available Sale price¥5,980
[Limited to 6 stones] [Mr. Sanjay] Mexican opal or Sri Lankan spinel 1 loose stone (with defects) [Multiple purchase discount available]

[Limited to 6 stones] [Mr. Sanjay] Mexican opal or Sri Lankan spinel 1 loose stone (with defects) [Multiple purchase discount available] Sale price¥3,980
1 loose Australian opal (heart shape, 4 x 4mm)《Discount available for multiple purchases》

1 loose Australian opal (heart shape, 4 x 4mm)《Discount available for multiple purchases》 Sale price¥3,980
Fire Opal (Common Opal) 2 stone set《Discount available for multiple purchases》

Fire Opal (Common Opal) 2 stone set《Discount available for multiple purchases》 Sale price¥3,980
Limited to 15 stones, 1 loose Australian iron opal stone, multiple purchase discounts available

Limited to 15 stones, 1 loose Australian iron opal stone, multiple purchase discounts available Sale price¥3,980
Limited to 9 stones [Mr. Sanjay] Oil in quartz, spinel, yellow opal 1 loose stone (damaged) [Multiple purchase discount available]

Limited to 9 stones [Mr. Sanjay] Oil in quartz, spinel, yellow opal 1 loose stone (damaged) [Multiple purchase discount available] Sale price¥2,980
[Available at 10 PM on August 11th] Limited to 9 stones: 1 loose Mexican opal stone [Multiple purchase discounts available]

[Available at 10 PM on August 11th] Limited to 9 stones: 1 loose Mexican opal stone [Multiple purchase discounts available] Sale price¥1,980
Limited to 8 stones: 1 Mexican fire opal loose stone with unique color (up to 2.2ct) Multiple purchase discounts available

Limited to 8 stones: 1 Mexican fire opal loose stone with unique color (up to 2.2ct) Multiple purchase discounts available Sale price¥3,980
Limited to 8 stones: Ethiopian black opal (heat-treated, identification instructions included, average 2ct, approx. 11x8mm) 1 loose stone (multiple purchase discounts available)

Limited to 8 stones: Ethiopian black opal (heat-treated, identification instructions included, average 2ct, approx. 11x8mm) 1 loose stone (multiple purchase discounts available) 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
Limited to 23 stones: 1 Ethiopian opal loose stone (sphere, 4.5-5.0mm) Multiple purchase discounts available

Limited to 23 stones: 1 Ethiopian opal loose stone (sphere, 4.5-5.0mm) Multiple purchase discounts available Sale price¥5,980
Mexican Hyalite Opal 2.592ct loose

Mexican Hyalite Opal 2.592ct loose Sale price¥9,800
メキシコ産カンテラオパール 12.401ctルース

Mexican cantera opal 12.401ct loose Sale price¥8,800
メキシコ産カンテラオパール 14.740ctルース

Mexican cantera opal 14.740ct loose Sale price¥14,800
オーストラリア産ボルダーオパール 1.026ctルース

Australian boulder opal 1.026ct loose Sale price¥3,980
オーストラリア産ボルダーオパール 14.860ctルース

Australian boulder opal 14.860ct loose Sale price¥18,800
【KEN氏】メキシコ産ファイアオパール 0.353ctルース - カラッツSTORE

Mexican Fire Opal 0.353ct Loose Sale price¥4,980

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の取り組みと社会貢献

業界発展のための後進育成や事業協力、宝石の国スリランカの子どもたちへの支援活動など、KARATZの取り組みについてご紹介いたします。

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.