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 "

[On sale from 10pm on November 2nd] {Limited to 10 stones} Gem gacha💎 Mexican cantera opal gacha 1 loose stone (October birthstone opal) {Multiple purchase discounts available} Sale price¥5,980

【11/20 22時販売】メキシコ産オパール 1.028ctルース Sale price¥15,800

【11/20 22時販売】メキシコ産ファイアオパール 0.934ctルース Sale price¥3,980

【11/19 22時販売】メキシコ産オパール 1.639ctルース（コントラルスオパール） Sale price¥29,800

【KEN氏】メキシコ産オパール 9mm/1.640ctルース - カラッツSTORE

【11/15 22時販売】メキシコ産オパール 8.8mm/1.640ctルース Sale price¥29,800

[On sale from 10pm on 11/15] [Sakura Incut] Mexican Opal 6mm/0.450ct Loose Patch Sale price¥55,800

[On sale at 10pm on 11/15] Mexican Opal 4.5mm/0.220ct Loose Sale price¥5,980

[On sale at 10pm on 11/15] Mexican Fire Opal 8.0mm/1.270ct Loose Sale price¥29,800

[11/12 22:00 Sale] [Sakura Shape] Mexican Opal 2.551ct Loose Patch Sale price¥59,800

[On sale 11/10 at 22:00] Mexican Cantera Opal 3.984ct loose stone Sale price¥29,800

[On sale 11/10 at 22:00] Mexican Cantera Opal 3.604ct loose stone Sale price¥7,980

[On sale 11/10 at 22:00] Mexican Cantera Opal 15.482ct loose stone Sale price¥12,800

[On sale 11/14 at 22:00] Mexican fire opal 1.755ct loose stone Sale price¥29,800

[11/10 22:00 Sale] Mexican Fire Opal 1.341ct Loose Sale price¥39,800

[On sale 11/7 at 10pm] Mexican Hyalite Opal 0.171ct loose stone (fluoresces even in sunlight) Sale price¥17,800

[On sale 11/7 at 10pm] Mexican Hyalite Opal 0.170ct loose stone (fluoresces even in sunlight) Sale price¥18,800

[On sale 11/4 at 22:00] Mexican Cantera Opal 22.250ct Loose Sale price¥59,800

【さくらシェイプ】メキシコ産オパール 6.7mm/0.792ctルース（コントラルス）

[On sale from 10pm on 11/4] [Sakura Shape] Mexican Opal 6.7mm/0.792ct [Collaboration] Loose (Contralus) Patch Sale price¥59,800

[On sale 11/4 at 22:00] Pt900/Pt850 Australian black opal 0.37ct, diamond 0.73ct necklace Sale price¥198,000

[11/2 22:00 Sale] Australian Opal 6.799ct Loose Stone, Japan-Germany Exchange Sale price¥59,800

[On sale 11/8 at 22:00] Australian green opal 4.990ct loose Sale price¥9,800

[On sale at 10pm on November 9th] Australian black opal 0.386ct loose Sale price¥39,800

[On sale at 10pm on 10/26] Mexican yellow opal 0.673ct loose Sale price¥8,800

[On sale at 10pm on 10/26] Mexican Yellow Opal 0.428ct Loose Sale price¥8,800

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

Ethiopian opal 1 stone (oval cut, 3 x 4 mm) loose (discount available for multiple purchases) Sale price¥1,980

【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

[Mr. KEN] 1 Mexican opal (approx. 3.5mm)《Multiple purchase discount available》 Sale price¥3,980

1 green opal from Amazon《Discount available for multiple purchases》 Sale price¥2,980

Baroque Opal 2 stones《Discount available for multiple purchases》 Sale price¥3,980

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 Sale price¥5,980

Fire Opal (Common Opal) 2 stone set《Discount available for multiple purchases》 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) Sale price¥8,800

Limited to 21 stones [Kitty Gacha] Cat cut, blue opal, jade, chalcedony, etc. (One in four people will also receive a paw set) [Multiple purchase discounts available] Sale price¥7,980

Limited to 8 stones: 1 Mexican opal loose stone (fire opal, water opal) Discounts for multiple purchases For beginners Sale price¥5,980

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

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

Limited to 9 stones [Mr. Sanjay] Oil in quartz, spinel, yellow opal 1 loose stone (damaged) [Multiple purchase discount available] Sale price¥2,980

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

【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 Sale price¥69,800

Cantera Opal 5.750ct loose Sale price¥19,800

ブルーオパール 1.61ctルース - KARATZ STORE｜カラッツSTORE

Blue opal 1.61ct loose Sale price¥14,800

[On sale at 10pm on 10/22] Australian Opal 1.916ct Loose Sale price¥8,800

[On sale at 10pm on 10/22] Australian Opal 3.639ct Loose Sale price¥14,800

[On sale 11/2 at 10pm] Mexican Cantera Opal 5.647ct loose stone Sale price¥19,800

[On sale 11/2 at 10pm] Mexican Cantera Opal 2.809ct loose stone Sale price¥25,800

[On sale at 10pm on 10/24] Mexican Cantera Opal 7.782ct loose stone Sale price¥59,800

[On sale at 10pm on 10/24] Mexican Cantera Opal 4.973ct loose stone Sale price¥15,800

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.

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