【10/13 22時販売】K18YGマダガスカル産スフェーン 0.597ct ペンダントトップ（ネックレストップ）
Sale price¥39,800
Grandidierite 0.206ct loose
Sale price¥22,800
Celestite from Madagascar 7.080ct loose Japanese and German
Sale price¥98,000
Color change garnet from Madagascar 0.855ct loose
Sale price¥9,800
Color change garnet from Madagascar 0.648ct loose
Sale price¥8,800
Sphene from Madagascar 0.711ct loose
Sale price¥19,800
Sphene from Madagascar 0.765ct loose
Sale price¥15,800
Montebrasite from Madagascar 0.328ct loose
Sale price¥3,980
[12549429] Blue sapphire 0.862ct loose stone
Sale price¥25,800
![[Available at 10 PM on September 6th] Limited to 4 stones: One loose pink sapphire (pear shape) from Madagascar [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/collage_e2884259-69c4-4a1e-8a04-94b7e0aa4d98.png?v=1756979238&width=2000)
![[On sale September 6th at 10 PM] [Limited to 7 stones] Madagascar sapphire, 1 loose stone (long hexagonal cut, approximately 5 x 3 mm) [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/P1010164.jpg?v=1756867626&width=4000)
Bicolor Sphene 4.50ct loose
Sale price¥258,000
![[Available at 10 PM on August 30th] Limited to 10 stones: Madagascar Sapphirine (Sapphirine) Loose Stone [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/P1010321_de80d97b-aaa8-4f57-b4f7-655e79ff8b8e.jpg?v=1755939478&width=4000)
Purple sapphire 0.313ct loose
Sale price¥6,980
Purple sapphire 0.220ct loose
Sale price¥3,980
Purple sapphire 0.240ct loose
Sale price¥4,980
Sphene 0.590ct loose
Sale price¥3,980
Goethite in quartz 1.020ct loose
Sale price¥2,980
![[Available at 10 PM on August 24th] Limited to 12 stones: Madagascar Sapphirine (Sapphirine) Loose Stone [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/P1010371_a123a6b4-46a8-4394-9eac-427d8a3707ec.jpg?v=1755996019&width=4000)
![[On Sale at 10 PM on August 11th] 0.060ct Loose GIA Emerald from Madagascar, No Oil](http://store.karatz.jp/cdn/shop/files/P7111504_2a68ed93-d0a2-40e9-bf36-967ced39df1c.jpg?v=1754697292&width=2156)
Grandidierite from Madagascar 0.169ct loose stone
Sale price¥15,800
[10/11 22:00 Sale] Madagascar Iolite 0.707ct Loose Stone
Sale price¥12,800
[Konpeito] Iolite 3.330ct loose
Sale price¥25,800
Bicolor apatite 15.507ct loose
Sale price¥98,000
[On Sale at 10 PM on August 9th] Madagascar Pink Sapphire 0.324ct Loose
Sale price¥12,800
[On Sale at 10 PM on August 13th] Madagascar Sapphire 0.298ct Loose
Sale price¥12,800
[On Sale at 10 PM on August 9th] Madagascar Sapphire 0.503ct Loose
Sale price¥15,800
[On Sale at 10 PM on August 2nd] Madagascar Sapphire 0.344ct Loose
Sale price¥12,800
0.400ct Madagascar Pink Sapphire Loose (Heart Shape)
Sale price¥19,800
Madagascar Apatite 0.371ct Loose Stone
Sale price¥2,980
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.