cantera opal

Cantera opal is a type of opal that is the birthstone for October, and refers to opal with a host rock that is mainly produced in Mexico. Many of them are polished into a round, round, egg-like shape, giving them a unique cuteness. It is said that the name comes from the Spanish word for the host rock, ``cantera'' (stone quarry).

Karatz GemMagazine
" Cantella Opal "

Mexican Cantera Opal 15.195ct Loose Sale price¥12,800

Mexican Cantera Opal 1.867 ct Loose Stone Sale price¥12,800

Mexican Cantera Opal 3.051ct Loose Stone Sale price¥18,800

[On sale May 6th at 10 PM JST] Mexican Cantera Opal Loose Stone 7.207ct Sale price¥25,800

Mexican Cantera Opal 7.619 ct Loose Stone Sale price¥25,800

Mexican Cantera Opal 10.379ct Loose Stone Sale price¥39,800

[On sale May 2nd at 10 PM JST] Mexican Cantera Opal 27.410ct Loose Stone Sale price¥25,800

[On sale at 10 PM on May 2nd] Mexican Cantera Opal 32.560ct Loose Stone Sale price¥29,800

Mexican Cantera Opal 5.811 ct Loose Stone with Certificate Sale price¥29,800

Mexican Cantera Opal 7.520 ct Loose Stone with Appraisal Sale price¥24,800

Mexican Cantera Opal 17.284ct Loose Sale price¥39,800

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

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Limited to 10 stones Mexican Cantera Opal 1 loose stone (10 x 8 cm) Multiple purchase discounts available

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[Limited to 7 stones] Gem gacha💎 Australian opal or Mexican cantera opal 1 loose stone (with defects) [Multiple purchase discount available]

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Mexican Cantera Opal 6.112ct Loose

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Cantera Opal 3.750ct Loose (Egged in)

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Cantera opal 6.030ct loose

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Mexican cantera opal 10.560ct loose

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Mexican Cantera Opal 7.262ct Loose

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Mexican Cantera Opal 4.542ct Loose

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Mexican Cantera Opal 1.794ct Loose

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Mexican Cantera Opal 6.385ct Loose

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Mexican Cantera Opal 7.081ct Loose

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Mexican Cantera Opal 3.067ct Loose

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Mexican Cantera Opal 11.885ct Loose

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Mexican Cantera Opal 1.086ct Loose (Faceted)

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Mexican Cantera Opal 1.383ct Loose Stone (Rose Cut)

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Mexican cantera opal 34.760ct loose

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Cantera Opal 8.678ct loose

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[On sale May 6, 10 PM JST] Mexican Cantera Opal Loose Stone, 2.096 ct

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Mexican Cantera Opal 5.410 ct Loose Stone

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Mexican Cantera Opal 8.097ct Loose

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【Karafuri】Pt900 Cantera Opal 7.809ct and Diamond 0.19ct Pendant Top

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Mexican Cantera Opal 8.832ct Loose

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Mexican Cantera Opal 4.300ct Loose

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Mexican Cantera Opal 6.629ct Loose

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Mexican Cantera Opal 4.581ct Loose

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Mexican Cantera Opal 1.256ct Loose Stone (Rose Cut)

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.
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KARATZ・Five Commitments

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We will introduce KARATZ's thoughts on products, the attention to detail and efforts in selecting gemstones and creating jewelry.

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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.