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 22:00 on 2/8] Opaque stone gacha💎 {3 stones remaining} Dunilite, thulite, green opal with date stamp, etc. (Plus, you'll get 1 Hokkaido rhodochrosite stone) {Multiple purchase discounts available} Sale price¥5,980

[On sale at 22:00 on 2/9] Honduran Opal 0.999ct Loose Sale price¥9,800

[On sale at 22:00 on 2/9] Honduran Opal 1.124ct Loose Sale price¥7,980

[On sale from 22:00 on 2/2] [Limited to 4 stones] Mexican Cantera Opal 1 loose stone (10 x 8 cm) [Multiple purchase discounts available] Sale price¥4,980

[On sale 2/2 at 10pm] Mexican Cantera Opal 5.126ct loose stone Sale price¥25,800

[On sale 2/1 at 22:00] Mexican Cantera Opal 7.081ct Loose Sale price¥15,800

[On sale 2/1 at 22:00] Mexican Cantera Opal 4.602ct loose stone Sale price¥29,800

[On sale 2/1 at 22:00] Mexican Cantera Opal 6.385ct loose stone Sale price¥18,800

[On sale 2/1 at 22:00] Mexican Cantera Opal 1.842ct loose stone Sale price¥39,800

[On sale 2/6 at 22:00] Mexican Cantera Opal 4.300ct Loose Sale price¥69,800

[On sale at 22:00 on 2/6] Mexican Cantera Opal 9.909ct loose stone Sale price¥39,800

[On sale 2/6 at 22:00] Mexican Cantera Opal 5.238ct loose stone Sale price¥15,800

[On sale 2/8 at 10pm] Mexican Cantera Opal 7.275ct loose stone Sale price¥35,800

[On sale 2/8 at 10pm] Mexican Cantera Opal 5.261ct loose stone Sale price¥49,800

[On sale 2/1 at 22:00] Australian black opal 0.856ct loose Sale price¥12,800

[On sale 2/1 at 22:00] Australian black opal 1.018ct loose Sale price¥18,800

[On sale 2/4 at 10pm] Australian black opal 0.812ct loose Sale price¥8,800

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

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

【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 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 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

Limited to 10 stones Mexican Cantera Opal 1 loose stone (10 x 8 cm) Multiple purchase discounts available Sale price¥5,980

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》 Sale price¥3,980

Limited to 4 stones: Ethiopian black opal (heat-treated, identification instructions included) 1 loose stone (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) Sale price¥8,800

[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

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 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

Cantera Opal 5.750ct loose Sale price¥19,800

Mexican Fire Opal 0.343ct Loose Sale price¥15,800

Mexican Fire Opal 0.653ct Loose Sale price¥25,800

[Cat cut] Australian boulder opal 0.747ct loose stone Sale price¥12,800

Mexican Fire Opal 4.8mm/0.336ct Loose Sale price¥5,980

Mexican Fire Opal 3.8mm/0.131ct Loose Sale price¥8,800

Mexican Opal 4.9mm/0.327ct Loose Sale price¥9,800

Mexican Opal 3.8mm/0.157ct Loose Sale price¥6,980

[On sale 2/13 at 10pm] Mexican Water Opal 3.9mm/0.176ct Loose Sale price¥9,800

[On sale 2/13 at 10pm] Mexican Water Opal 3.8mm/0.174ct Loose Sale price¥8,800

Ethiopian Opal 41.967ct Rough Stone Sale price¥33,800

Ethiopian Opal 24.319ct Rough Stone Sale price¥19,800

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