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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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メキシコ産エッグインオパール 0.627ctルース

Mexican egg-in-opal 0.627ct loose stone Sale price¥8,800
エチオピア産オパール 0.466ctルース

Ethiopian Opal 0.466ct Loose (Heart Shape, Faceted Cut) Sale price¥3,980
エチオピア産オパール 0.294ctルース

Ethiopian Opal 0.294ct Loose (Heart Shape, Faceted Cut) Sale price¥6,980
オーストラリア産シェルオパール 53.277ct原石

Australian shell opal 53.277ct rough stone Sale price¥59,800
オーストラリア産シェルオパール（貝オパール） 96.177ct原石

Australian shell opal (shell opal) 96.177ct rough stone Sale price¥69,800
メキシコ産ファイアオパール 0.277ctルース

Mexican Fire Opal 0.277ct Loose (Faceted Cut) Sale price¥5,980
メキシコ産ファイアオパール 0.472ctルース

Mexican Fire Opal 0.472ct Loose (Star Cut, Faceted Cut) Sale price¥9,800
メキシコ産ファイアオパール 0.564ctルース

Mexican Fire Opal 0.564ct Loose (Faceted Cut) Sale price¥15,800
Mexican Fire Opal 0.290ct Loose (Faceted Cut)

Mexican Fire Opal 0.290ct Loose (Faceted Cut) Sale price¥8,800
メキシコ産オパール 0.502ctルース

Mexican Opal 0.502ct Loose (Faceted Cut) Sale price¥12,800
メキシコ産オパール 0.790ctルース

Mexican Opal 0.790ct Loose (Contrarus Opal, Faceted Cut) Sale price¥18,800
Mexican Hyalite Opal 0.774ct Loose (Faceted Cut)

Mexican Hyalite Opal 0.774ct Loose (Faceted Cut) Sale price¥8,800
Mexican Hyalite Opal 7.5mm/1.221ct Loose (Faceted Cut)

Mexican Hyalite Opal 7.5mm/1.221ct Loose (Faceted Cut) Sale price¥14,800
メキシコ産オパール 0.244ctルース

Mexican Opal 1.205ct Loose (Contrarus Opal, Faceted Cut) Sale price¥29,800
オーストラリア産ブラックオパール 0.310ctルース

Australian black opal 0.310ct loose Sale price¥8,800
メキシコ産カンテラオパール 17.528ctルース

Mexican cantera opal 17.528ct loose Sale price¥39,800
メキシコ産カンテラオパール 11.914ctルース

Mexican cantera opal 11.914ct loose Sale price¥19,800
メキシコ産カンテラオパール 8.100ctルース

Mexican cantera opal 8.100ct loose Sale price¥19,800
インドネシア産オパール 0.217ctルース

Opal from Indonesia 0.217ct loose Sale price¥5,980
メキシコ産ウォーターオパール 0.598ctルース

Mexican Water Opal 0.598ct Loose (Contralus Opal) Sale price¥9,800
【サンジェ氏】メキシコ産ウォーターオパール 3.161ctルース（コントラルスオパール）

[Mr. Sanjay] Mexican water opal 3.161ct loose (Contrarus opal) Sale price¥69,800
オパール 0.590ctルース

Opal 6mm/0.590ct loose (rose cut) Sale price¥8,800
Mexican Water Opal 2.623ct Loose (Contralus Opal)

Mexican Water Opal 2.623ct Loose (Contralus Opal) Sale price¥55,800
メキシコ産ウォーターオパール 1.790ctルース

Mexican Water Opal 1.790ct Loose (Contralus Opal) Sale price¥45,800
カンテラオパール 12.610ctルース

Mexican cantera opal 12.610ct loose Sale price¥29,800
【カメリアカット】オパール 5.283ctルース

[Camellia cut] Opal 14mm/5.283ct loose with patch Sale price¥98,000
Sold out 【大人用】宝石磨きに挑戦してみよう「自分で出来る原石磨きセット」（初心者向け：バイカラーフローライト）・ボルダーオパール付※原石磨きコンテスト対象 ※

[For adults] Let's try gemstone polishing "Do-it-yourself rough stone polishing set" (for beginners: bicolor fluorite) with boulder opal *Subject to the rough stone polishing contest*

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

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

Sold out [Available at 10 PM on December 13th] Limited to 9 stones: Australian Black Opal (including semi-black opal) Loose Stone Gacha (Includes 1 bonus white opal) [Multiple purchase discounts available]

[Available at 10 PM on December 13th] Limited to 9 stones: Australian Black Opal (including semi-black opal) Loose Stone Gacha (Includes 1 bonus white opal) [Multiple purchase discounts available]

Sold out Limited Quantity Gem Gacha! Win 1 or 2 gems, including pink diamonds and 46ct candela opals. Discounts available for multiple purchases.

Limited Quantity Gem Gacha! Win 1 or 2 gems, including pink diamonds and 46ct candela opals. Discounts available for multiple purchases.
Sold out 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
Sold out バロックオパール 2石 - KARATZ STORE｜カラッツSTORE

Baroque Opal 2 stones《Discount available for multiple purchases》

Sold out [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]
Sold out [On sale November 8th at 10pm] Limited to 9 stones: Carving Gacha (Opal, Tourmaline, Tsavorite Garnet) 1 loose stone [Multiple purchase discounts available]

[On sale November 8th at 10pm] Limited to 9 stones: Carving Gacha (Opal, Tourmaline, Tsavorite Garnet) 1 loose stone [Multiple purchase discounts available]
Sold out [Limited to 7 stones] Gem gacha💎 Australian opal or Mexican cantera opal 1 loose stone (with defects) [Multiple purchase discount available]

[Limited to 7 stones] Gem gacha💎 Australian opal or Mexican cantera opal 1 loose stone (with defects) [Multiple purchase discount available]
Sold out Limited to 5 stones: 1 Mexican Hyalite Opal loose stone (average 0.5ct) Multiple purchase discounts available

Limited to 5 stones: 1 Mexican Hyalite Opal loose stone (average 0.5ct) Multiple purchase discounts available
Sold out Fire Opal (Common Opal) 2 stone set《Discount available for multiple purchases》

Fire Opal (Common Opal) 2 stone set《Discount available for multiple purchases》

Sold out Limited to 2 stones: 1 Australian opal loose stone (pear cut) Multiple purchase discounts available

Limited to 2 stones: 1 Australian opal loose stone (pear cut) Multiple purchase discounts available
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 【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 オパール 0.595ctルース

Opal 6mm/0.595ct loose (rose cut)
Sold out オーストラリア産ボルダーオパール 1.730ctルース

Australian boulder opal 1.730ct loose

Sold out [12/22 22:00] Australian Black Opal 0.623ct Loose

[12/22 22:00] Australian Black Opal 0.623ct Loose
Sold out [12561701] Australian black opal 0.825ct loose

[12561701] Australian black opal 0.825ct loose
Sold out アマゾン産グリーンオパール 1.120ctルース

Amazon green opal 1.120ct loose
Sold out オーストラリア産ボルダーオパール 4.729ctルース

Australian boulder opal 4.729ct loose
Sold out 【KEN氏】メキシコ産ファイアオパール 1.150ctルース

Mexican Fire Opal 1.150ct 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.

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.