Rhodolite garnet 0.990ct loose
Sale price¥3,980
Amazon green opal 1.120ct loose
Sale price¥3,980
【11/24 22時販売】《限定12石》VS相当蛍光ダイヤモンドガチャ・ミニスライスダイヤモンドのおまけ付《複数購入割引有》
Sale price¥6,980
【11/24 22時販売】《限定7石》スリランカ産スターサファイア1石ルース《複数購入割引有》
Sale price¥3,980
Sri Lankan star sapphire 1.487ct loose
Sale price¥8,800
Aventurine Aquamarine Cat's Eye 1.567ct Loose
Sale price¥4,980
Scapolite Cat's Eye 9.733ct Loose
Sale price¥6,980
Quartz 96.732ct loose (explosion crystal)
Sale price¥2,980
Oregon Sunstone 1.333ct Loose
Sale price¥8,800
Green sapphire 0.518ct loose (teal green)
Sale price¥8,800
Unheated silky pink sapphire from Vietnam 0.426ct loose
Sale price¥9,800
Trapichel ruby from Myanmar 0.202ct rough stone
Sale price¥3,980
[12545123 published] Yellow Beryl 0.696ct loose
Sale price¥3,980
Colombian trapiche emerald (reverse trapiche) 0.099ct loose
Sale price¥8,800
Colombian trapiche emerald (reverse trapiche) 0.074ct loose
Sale price¥8,800
Colombian trapiche emerald (reverse trapiche) 0.108ct loose
Sale price¥9,800
Colombian trapiche emerald (reverse trapiche) 0.084ct loose
Sale price¥8,800
![[12561384] Tanzanian Almandine Garnet 0.656ct Loose Stone](http://store.karatz.jp/cdn/shop/files/PB141079.jpg?v=1763981336&width=4000)
[12561384] Tanzanian Almandine Garnet 0.656ct Loose Stone
Sale price¥8,800
![[12561374] Indian Iolite Sunstone 0.540ct Loose](http://store.karatz.jp/cdn/shop/files/PB141782.jpg?v=1764073310&width=4000)
[12561374] Indian Iolite Sunstone 0.540ct Loose
Sale price¥8,800
[11/18 22:00 Sale] Australian Prehnite 1.705ct Loose Stone
Sale price¥9,800
[11/18 22:00 Sale] Australian Prehnite 1.691ct Loose Stone
Sale price¥9,800
Kenyan gold sheen sapphire 2.3mm/0.083ct loose
Sale price¥8,800
![[On sale November 16th at 10pm] [Limited to 32 stones] Namibian Mandarin Garnet Loose Stone (Round Cut, 2.5mm) [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/PB130022.jpg?v=1763179441&width=4000)
![[On sale at 10 PM on November 15th] Limited to 8 stones: 1 loose Brazilian ametrine (concave cut, average 10 carats) [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/PB130286.jpg?v=1763173719&width=4000)
![[On sale at 10 PM on November 15th] Limited to 9 stones: One rough petalite stone from Myanmar (average 6.0 carats) [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/PB130145.jpg?v=1763171751&width=4000)
![[On sale November 15th at 10 PM] [Limited to 7 stones] One loose colorless apatite from Madagascar (all stones come with a certificate of authenticity, average 0.60 carat) [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/PB130098_64bd5f6d-3d76-4a2e-aa75-fb4deecc1091.jpg?v=1763171530&width=4000)
![[Available at 10 PM on November 15th] Limited Quantity: Single Rough Neon Blue Apatite from Madagascar (Average 2.2 carats) [Multiple Purchase Discounts Available]](http://store.karatz.jp/cdn/shop/files/PB130064.jpg?v=1763170621&width=4000)
Felspar 1.478ct loose from Sri Lanka
Sale price¥3,980
Felspar 1.939ct loose from Sri Lanka
Sale price¥5,980
Hot Pink Spinel 0.203ct Loose (Mahenge Spinel)
Sale price¥8,800
Synthetic Moissanite 0.632ct loose stone (tie cut)
Sale price¥3,980
Synthetic Moissanite 0.509ct loose stone (tie cut)
Sale price¥3,980
Colombian trapiche emerald (reverse trapiche) 0.072ct loose
Sale price¥6,980
Colombian trapiche emerald (reverse trapiche) 0.095ct loose
Sale price¥6,980
Colombian trapiche emerald (reverse trapiche) 0.113ct loose
Sale price¥9,800
Colombian trapiche emerald (reverse trapiche) 0.094ct loose
Sale price¥9,800
Spanish Andalusite 0.317ct loose stone
Sale price¥3,980
Andalusite 0.293ct loose stone
Sale price¥3,980
Andalusite 0.192ct loose stone
Sale price¥2,980
GGG (Gadolium Gallium Garnet) 0.675ct Loose Stone
Sale price¥8,800
Diamond 0.061ct loose (trapeze cut, VS class equivalent)
Sale price¥7,980
Diamond 0.042ct loose (trapeze cut, VS class equivalent)
Sale price¥6,980
Diamond 0.039ct loose (trapeze cut, equivalent to VS class)
Sale price¥5,980
Madeira Citrine 7mm/0.938ct loose
Sale price¥3,980
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.