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 "

【2/14 22時販売】オーストラリア産ブラックオパール 0.221ctルース Sale price¥22,800

【2/14 22時販売】オーストラリア産ブラックオパール 0.805ctルース Sale price¥39,800

【2/14 22時販売】オーストラリア産ブラックオパール 0.565ctルース Sale price¥29,800

【2/8 22時販売】オーストラリア産アイアンオパール 17.439ctルース Sale price¥18,800

【2/8 22時販売】オーストラリア産ボルダーオパール 6.152ctルース Sale price¥18,800

[On Sale 2/1 at 10 PM] Mexican Fire Opal 0.218ct Loose (Faceted) Sale price¥18,800

[On Sale 2/1 at 10pm] Mexican Fire Opal 0.281ct Loose Sale price¥15,800

Mexican Fire Opal 0.277ct Loose (Faceted Cut) Sale price¥5,980

Mexican Fire Opal 0.472ct Loose (Star Cut, Faceted Cut) Sale price¥8,800

Mexican Fire Opal 0.564ct Loose (Faceted Cut) Sale price¥12,800

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

[12561175] Mexican Opal (Faceted) 0.208ct Loose Sale price¥9,800

[On Sale 2/4 at 10pm] Mexican Fire Opal 0.362ct Loose Sale price¥15,800

Opal 6mm/0.590ct loose (rose cut) Sale price¥5,980

Mexican cantera opal 17.528ct loose Sale price¥29,800

[On Sale at 10 PM on January 29th] Mexican Water Opal 4.8mm/0.289ct Loose Sale price¥18,800

[On Sale at 10 PM on January 27th] Mexican Fire Opal 0.235ct Loose (Faceted) Sale price¥12,800

[On Sale at 10 PM on January 25th] Mexican Fire Opal 0.191ct Loose (Faceted) Sale price¥12,800

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》 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

Limited to 12 stones: Mexican opal (custom faceted cut) - 1 loose stone (multiple purchase discounts available) Sale price¥3,980

Limited to 9 stones: 1 loose Australian opal (faceted cut) [Multiple purchase discounts available] Sale price¥3,980

Limited to 8 stones: Mexican Hyalite Opal Loose (Large 4ct, Fluorescent even in sunlight) Multiple purchase discounts available Sale price¥4,980

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 11 stones: Sakura-shaped Contralus Opal and a specially cut Opal Gacha with one loose stone. Discounts available for multiple purchases. Sale price¥3,980

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 23 stones: Ethiopian Opal, 1 loose sphere (4.5-5.0mm) - Multiple purchase discounts available Sale price¥5,980

Opal 0.123ct loose stone Sale price¥5,980

Limited to 12 stones Tanzanian Milky Opal Cat's Eye (7.5 x 5.5 mm) Multiple purchase discounts available Sale price¥3,980

Mexican Hyalite Opal 2.592ct loose Sale price¥9,800

[On Sale at 10 PM on January 17th] Australian Black Opal 0.758ct Loose Sale price¥18,800

[On Sale at 10 PM on January 17th] 1.091ct Loose Australian Black Opal Sale price¥9,800

[On Sale at 10 PM on January 17th] 3.583ct Australian Black Opal Loose Stone (Double-Sided) Sale price¥29,800

Mexican Water Opal 1.790ct Loose (Contralus Opal) Sale price¥29,800

[On Sale at 10 PM on January 6th] Mexican Water Opal (Faceted) 0.215ct Loose (Contralus Opal) Sale price¥18,800

[1/4 22:00 Sale] Australian White Opal 1.175ct Loose Sale price¥9,800

Mexican water opal 0.212ct loose (contrarus opal) Sale price¥18,800

Mexican Water Opal (Faceted) 0.402ct Loose (Contrarus Opal) Sale price¥12,800

[12/7 22:00 Sale] Mexican Egg-in Opal 0.381ct Loose Sale price¥18,800

Synthetic Opal 0.856ct Loose (Synthetic Water Opal) Sale price¥8,800

Mexican cantera opal 15.542ct loose Sale price¥15,800

Mexican cantera opal 9.422ct loose Sale price¥25,800

Mexican cantera opal 7.563ct loose Sale price¥15,800

Australian boulder opal 6.980ct loose Sale price¥6,980

Australian black opal 2.736ct loose Sale price¥98,000

Mexican fire opal 1.283ct loose stone Sale price¥29,800

Mexican fire opal 1.413ct loose stone Sale price¥39,800

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.

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.