Blue beryl (Macis beryl) 0.172ct loose stone
Sale price¥8,800
Colombian Trapiche Emerald 0.811ct Loose
Sale price¥59,800
Colombian emerald 0.126ct loose stone
Sale price¥15,800
Zambian emerald 0.181ct loose stone
Sale price¥8,800
Zambian emerald 0.099ct loose stone
Sale price¥9,800
Zambian Emerald 3.7mm/0.215ct Loose (Silky Emerald)
Sale price¥9,800
Colombian pyrite in emerald 15.291ct loose
Sale price¥1,000,000
Brazilian Golden Beryl 9mm/2.438ct Loose Stone
Sale price¥12,800
Colombian Trapiche Emerald 0.923ct Rough Stone
Sale price¥45,800
Blue beryl (Macis beryl) 0.199ct loose stone
Sale price¥9,800
Blue beryl (Macis beryl) 3.5mm/0.152ct loose stone
Sale price¥8,800
Blue Beryl (Macisi Beryl) 3.6mm/0.176ct loose stone
Sale price¥8,800
Colombian emerald 3.5mm/0.150ct loose stone
Sale price¥22,800
Non-Oil Emerald 1.070ct Loose Gübelin Certificate
Sale price¥698,000
Emerald 0.484ct loose
Sale price¥18,800
Brazilian Morganite 1.296ct loose stone
Sale price¥8,800
[Koshu Precious Stone Cutting Pluethree] Yellow Beryl 0.880ct Loose
Sale price¥29,800
Emerald 0.308ct loose stone
Sale price¥14,800
Colombian pyrite in emerald 6.415ct loose stone
Sale price¥298,000
[Rouge cut] Morganite 2.059ct loose stone
Sale price¥8,800
American red beryl 0.207ct loose
Sale price¥49,800

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.



























![[On sale 8/15 at 10 PM JST] Colombian Emerald Gacha featuring Shimizu Kisaki's 8mm Clover In-cut (regularly 79,800 JPY) - only 15 stones available! (Bonus green beryl included) [Multiple purchase discount available]](http://store.karatz.jp/cdn/shop/files/81.png?v=1785982219&width=1890)





![Limited to 8 stones: One loose Brazilian rainbow aquamarine (average 0.9 carat, pear cut) [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/collage_9316de3e-a74f-47cf-b228-cb256a0050fc.png?v=1756458978&width=2000)


![[6/ 10 PM JST Release] 《Limited to 11 Stones》Bicolor Gemstone Gacha featuring Paraiba Tourmaline and Euclase 《Bulk Purchase Discount Available》](http://store.karatz.jp/cdn/shop/files/2026-08-0914.21.02.png?v=1786252887&width=1343)



![Limited to 7 stones: One loose, oil-free Russian emerald (1.5-1.6mm, step cut) [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/P1010795_07720c8f-f8df-4c94-9f93-deb3d7382fb6.jpg?v=1760090374&width=4000)
![[Jeweler's Tools] Limited Edition Chelsea Color Filter Emerald 2-Piece Set](http://store.karatz.jp/cdn/shop/files/collage_057412df-b83f-456f-b7c8-ff5d87550e46.png?v=1743666005&width=4000)
![[Limited to 6 stones] Rainbow Aquamarine 1 stone loose (avg. 0.7ct) [Multi-purchase discount available]](http://store.karatz.jp/cdn/shop/files/collage_5dff6ef8-31bd-43db-abb0-1573e37d6311.png?v=1783918927&width=3000)




![[Sales start 9/5 at 10 PM] 《Limited 5 stones》 Raw Colombian Emerald (avg. 0.52ct) 《Multi-buy discount available》](http://store.karatz.jp/cdn/shop/files/collage_68441094-4f47-4551-9052-eb22f03449c7.png?v=1788334683&width=2000)

![Limited to 9 stones: One loose Brazilian rainbow aquamarine (average 1.0 carat, pear cut) [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/collage_a4d9bef3-5745-4730-8adf-5950e9068581.png?v=1756459860&width=2000)

