![[On sale May 23rd at 10 PM] "Limited 9 Stones - Shinjuku Pop-Up Celebration" All stones with Central Gem Laboratory sorting (3.0-3.5mm, VS-SI clarity) "Multiple purchase discount available"](http://store.karatz.jp/cdn/shop/files/collage_f4ce5d64-8804-46cd-8a67-6e5dfa2be8a9.png?v=1785924412&width=4000)
[Star in cut] Mexican fire opal 7mm/0.678ct loose patch
Sale price¥39,800
![[Listed on 12564095] Nigerian Indicolite Tourmaline 0.241ct Loose Stone](http://store.karatz.jp/cdn/shop/files/P8065242_7f9f8128-cd25-4c26-8968-d71009960511.jpg?v=1786190050&width=2468)
[Listed on 12564095] Nigerian Indicolite Tourmaline 0.241ct Loose Stone
Sale price¥25,800
![[12564094 listed] Afghanite from Afghanistan 0.018ct Loose](http://store.karatz.jp/cdn/shop/files/P8055202_49959e96-c3df-4d87-afb1-d250780663a0.jpg?v=1786190243&width=2411)
[12564094 listed] Afghanite from Afghanistan 0.018ct Loose
Sale price¥5,980
[12564092 Posted] Sphene from Zimbabwe 0.669ct Loose
Sale price¥22,800
【Listed in 12564091】Zimbabwean Sphene 0.512ct Loose
Sale price¥17,800
[Posted on 12564090] Sphene from Zimbabwe 0.499ct Loose
Sale price¥17,800
[Item Number 12564089] Zimbabwean Sphene 0.356ct Loose Stone
Sale price¥12,800
[Listed on 12563931] Australian Opal 0.674ct Loose Gemstone
Sale price¥8,800
【Sakura Shape】Synthetic Sapphire 8.8mm/3.631ct Loose Stone
Sale price¥39,800
German Hauyne 0.134ct Loose Stone
Sale price¥29,800
![[Listed on 12564079] Unheated Purple-Pink Imperial Topaz from Brazil, 0.250ct Loose](http://store.karatz.jp/cdn/shop/files/P8054304_87130ebd-5dfb-45d5-99dd-f83c8190c91a.jpg?v=1786191387&width=2813)
【12564074 posted】 Lazurite from Pakistan 0.063ct loose
Sale price¥14,800
![[Published 12564073] Lapis Lazuli (Lazurite) from Pakistan, 0.054ct Loose Gemstone](http://store.karatz.jp/cdn/shop/files/P8054011_682ba8c6-d89c-4dba-8de3-97f3753990ea.jpg?v=1786191462&width=2467)
【12564072 Published】 Lazurite from Pakistan 0.052ct Loose Gemstone
Sale price¥12,800
[Lottery Sale 0629_08] Colombian Non-Oil Emerald 4.1mm/0.240ct Loose GIA
Sale price¥458,000
[Published as 12564068] Brazilian Spessartine Garnet 0.580ct Loose Stone
Sale price¥15,800
![[Lottery Sale 0812_16] Unheated Jedi Spinel from Burma 0.510ct Loose Stone GUILD](http://store.karatz.jp/cdn/shop/files/P8040499_e3270840-2be6-4153-ba2c-31dd8377265c.jpg?v=1786106595&width=2839)
![[Lottery Sale 0812_17] Unheated Burmese Jedi Spinel 0.430ct Loose Gemstone GUILD](http://store.karatz.jp/cdn/shop/files/P8040593_a1171ae3-0816-46ac-8f32-cc90ae964924.jpg?v=1786106629&width=2852)
![[Lottery Sale 0812_13] Russian Alexandrite 0.120ct Loose Stone GIA](http://store.karatz.jp/cdn/shop/files/collage_8b5c845d-6f2e-4bc0-aa59-943461783485.png?v=1786106687&width=2000)
[Lottery Sale 0812_13] Russian Alexandrite 0.120ct Loose Stone GIA
Sale price¥128,000
[Lottery Sale 0812_18] Zambian Non-Oil Emerald 0.540ct Loose GIA
Sale price¥188,000
[Published 12563933] Brazilian Rubellite 1.100ct Loose Stone
Sale price¥98,000
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.