![[Available at 10 PM on February 22nd] Limited to 10 Opals - Australian Opal Lottery with Certificate of Authenticity (including Australian Black Opal) (Plus 1 Mexican Fire Opal) [Multiple Purchase Discounts Available]](http://store.karatz.jp/cdn/shop/files/2ce9f9727de9532a55237668af9f2b6d_e306074e-7564-4e5e-bc94-74959ab2a91e.png?v=1770790310&width=2000)
![[Available at 10 PM on February 22nd] Limited to 13 stones: Mexican Opal (Cabochon Cut) Gacha [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/P2040462.jpg?v=1770978988&width=4000)
![[Available at 10 PM on March 8th] [New Arrivals in Tucson - Limited to 13 Stones] Mexican Opals, including imperfect pieces (including egg-in and water opals) [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/P1010530_f3d6178b-1412-47cf-99ef-bb8097b962d0.jpg?v=1772921775&width=4000)
Australian shell opal 53.277ct rough stone
Sale price¥59,800
[On Sale 2/28 10pm] Mexican Fire Opal 6.742ct Loose
Sale price¥98,000
[On Sale at 10 PM on March 1st] Mexican Egg-in Opal 3.646ct Loose
Sale price¥25,800
[On Sale at 10 PM on March 5th] Mexican Egg-in Opal 3.195ct Loose
Sale price¥19,800
[On Sale at 10 PM on March 1st] Mexican Egg-in Opal 4.879ct Loose
Sale price¥29,800
[On Sale 3/1 at 10pm] Mexican Egg-in Opal 2.125ct Loose
Sale price¥15,800
[On Sale at 10 PM on March 1st] Mexican Fire Opal 2.499ct Loose
Sale price¥18,800
[On Sale at 10 PM on March 8th] Mexican Fire Opal 1.260ct Loose
Sale price¥9,800
Mexican Hyalite Opal 7.5mm/1.221ct Loose (Faceted Cut)
Sale price¥12,800
[On Sale 3/8 at 10pm] Mexican Fire Opal 0.459ct Loose
Sale price¥18,800
[On Sale 2/14 10pm] Australian Black Opal 0.805ct Loose
Sale price¥39,800
[On Sale 2/14 10pm] Australian Black Opal 0.565ct Loose
Sale price¥29,800
![[On Sale 2/8 at 10pm] Australian Iron Opal 17.439ct Loose](http://store.karatz.jp/cdn/shop/files/P2036650.jpg?v=1770506812&width=4000)
[On Sale 2/8 at 10pm] Australian Iron Opal 17.439ct Loose
Sale price¥18,800
![[On Sale 2/8 at 10pm] Australian Boulder Opal 6.152ct Loose](http://store.karatz.jp/cdn/shop/files/P2036602.jpg?v=1770506281&width=4000)
[On Sale 2/8 at 10pm] Australian Boulder Opal 6.152ct Loose
Sale price¥18,800
1 green opal from Amazon《Discount available for multiple purchases》
Sale price¥2,980
![Limited to 9 stones: 1 loose Australian opal (faceted cut) [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/15_dc816088-689d-48f9-a277-773d85ed082c.png?v=1759454434&width=1500)
Opal 0.123ct loose stone
Sale price¥5,980
Mexican Hyalite Opal 2.592ct loose
Sale price¥9,800
![[On Sale 2/1 at 10 PM] Mexican Fire Opal 0.218ct Loose (Faceted)](http://store.karatz.jp/cdn/shop/files/P1221603.jpg?v=1769815878&width=4000)
[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](http://store.karatz.jp/cdn/shop/files/P1221546.jpg?v=1769816142&width=4000)
[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
![[On Sale 2/7 at 10pm] Mexican Opal (Faceted) 0.208ct Loose](http://store.karatz.jp/cdn/shop/files/P1306870.jpg?v=1770295695&width=4000)
[On Sale 2/7 at 10pm] Mexican Opal (Faceted) 0.208ct Loose
Sale price¥9,800
![[On Sale 2/4 at 10pm] Mexican Fire Opal 0.362ct Loose](http://store.karatz.jp/cdn/shop/files/P1306794.jpg?v=1770035999&width=4000)
[On Sale 2/4 at 10pm] Mexican Fire Opal 0.362ct Loose
Sale price¥15,800
![[On Sale 2/17 at 10pm] Mexican Fire Opal (Faceted) 4.5mm/0.218ct Loose](http://store.karatz.jp/cdn/shop/files/P1273185.jpg?v=1771105593&width=4000)
[On Sale 2/17 at 10pm] Mexican Fire Opal (Faceted) 4.5mm/0.218ct Loose
Sale price¥14,800
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](http://store.karatz.jp/cdn/shop/files/P1211645.jpg?v=1769147549&width=4000)
![[On Sale at 10 PM on January 27th] Mexican Fire Opal 0.235ct Loose (Faceted)](http://store.karatz.jp/cdn/shop/files/P1211603.jpg?v=1769147090&width=4000)
![[On Sale at 10 PM on January 25th] Mexican Fire Opal 0.191ct Loose (Faceted)](http://store.karatz.jp/cdn/shop/files/P1201367.jpg?v=1769240879&width=4000)
![[On Sale at 10 PM on January 17th] Australian Black Opal 0.758ct Loose](http://store.karatz.jp/cdn/shop/files/P1150273.jpg?v=1768479106&width=4000)
[On Sale at 10 PM on January 17th] Australian Black Opal 0.758ct Loose
Sale price¥18,800
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.
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.