Australian boulder opal 1.675ct loose
Sale price¥14,800
Musgravite from Myanmar 0.546ct loose Japanese German edition
Sale price¥98,000
Bicolor sapphire 1.030ct loose from Windsor, Tanzania
Sale price¥89,800
Aquamarine 1.574ct loose stone
Sale price¥9,800
Andesine 3.430ct loose stone
Sale price¥18,800
[On Sale at 10pm on October 5th] Brazilian Aquamarine 8.858ct Loose Stone
Sale price¥198,000
[On Sale at 10 PM on October 4th] Blue Sapphire 4.1mm/0.332ct Loose
Sale price¥25,800
![[On Sale at 10:00 PM on October 4th] Brazilian Swiss Blue Topaz 1.065ct Loose](http://store.karatz.jp/cdn/shop/files/P9248792_9b97c5dc-bbef-45b1-b0fa-199b754aabdf.jpg?v=1759411715&width=3145)
![[Available at 10 PM on October 5th] Limited to 4 stones: Sri Lankan Rhodolite Garnet (4mm, Round Cut) - 1 loose stone [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/11_68a1bbaf-11da-453a-b687-bb5d166e5fdb.png?v=1759451951&width=4000)
![[On Sale 10/10 at 10 PM] [Limited to 8 stones] Mexican Hyalite Opal Loose Stone (Large 4ct, Fluorescent in sunlight) [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/collage_02d2c005-b0b0-4bdb-b567-6788a4b464ec.png?v=1759967028&width=2250)
![[On Sale 10/5 at 10 PM] [Limited to 11 Stones] Synthetic Moissanite Gacha 💎 Koshu Kiriko Plus Three Moissanite, Sange Cut, Pink, and Blue Moissanite, Loose Stones Included [Multiple Purchase Discounts Available]](http://store.karatz.jp/cdn/shop/files/collage_651faf70-f61a-4363-8c57-36a5e217dbd0.png?v=1759535374&width=2250)
Australian boulder opal 1.156ct loose
Sale price¥3,980
Burmese spinel 0.950ct loose (buff top)
Sale price¥15,800
Australian boulder opal 0.874ct loose
Sale price¥3,980
Hemimorphite from Congo 0.432ct loose
Sale price¥6,980
Brazilian rainbow scapolite 6mm/0.516ct loose
Sale price¥2,980
Brazilian Medusa Quartz (Paraiba Quartz) 1.181ct loose
Sale price¥3,980
Synthetic rutile 2.031ct loose
Sale price¥9,800
Bicolor tourmaline 0.418ct loose
Sale price¥3,980
Euclase from Zimbabwe 0.409ct loose
Sale price¥45,800
Bicolor tanzanite 0.492ct raw stone from Tanzania
Sale price¥6,980
Bicolor tanzanite 1.121ct rough stone from Tanzania
Sale price¥6,980
Pink zoisite 3.206ct rough stone from Tanzania
Sale price¥7,980
Bicolor tanzanite 1.165ct rough stone from Tanzania
Sale price¥7,980
Celestite from Madagascar 7.080ct loose Japanese and German
Sale price¥98,000
Australian boulder opal 1.173ct loose
Sale price¥5,980
Australian boulder opal 0.982ct loose
Sale price¥6,980
Brazilian Alexandrite 0.097ct Ruth (Hemachita Mine)
Sale price¥22,800
Brazilian Alexandrite 0.099ct Ruth (Hemachita Mine)
Sale price¥19,800
Brazilian Alexandrite 0.098ct Ruth (Hemachita Mine)
Sale price¥22,800
Brazilian Alexandrite 0.073ct Ruth (Hemachita Mine)
Sale price¥12,800
Pink zoisite from Tanzania 6.7mm/1.393ct loose (peach tanzanite)
Sale price¥128,000
Green Zoisite 3.617ct loose
Sale price¥118,000
Bicolor Zoisite 2.481ct loose
Sale price¥69,800
[Posted 12543724] Hemimorphite 9.286ct loose
Sale price¥59,800
[Posted 12543723] Hemimorphite 64.144ct loose
Sale price¥198,000
[Posted 12543725] Hemimorphite 16.864ct loose
Sale price¥79,800
[Posted 12543726] Hemimorphite 9.282ct loose
Sale price¥59,800
[Posted 12543727] Hemimorphite 11.133ct loose
Sale price¥59,800
![[On Sale at 10pm on October 5th] American Benitoite 0.262ct Loose Stone](http://store.karatz.jp/cdn/shop/files/P9194811_f9a96aa6-0dac-4fed-8307-3934b3b064a5.jpg?v=1758416228&width=3061)
[On Sale at 10pm on October 5th] American Benitoite 0.262ct Loose Stone
Sale price¥128,000
![[On Sale at 10pm on 6th October] Australian Prehnite 0.707ct Loose Stone](http://store.karatz.jp/cdn/shop/files/PA034673_06eed45a-5829-44cb-9897-27b0c3ee8fdb.jpg?v=1759629066&width=4000)
![[On Sale at 10 PM on October 6th] [Rouge Cut] Brazilian Bicolor Tourmaline 0.578ct Loose Stone](http://store.karatz.jp/cdn/shop/files/PA034631_27397db9-2c5e-4fef-85da-0a984eb085ea.jpg?v=1759628304&width=3144)
![[On Sale at 10 PM on 6th October] Tanzanian Sunstone (Illusion Sunstone) 5.0mm/0.338ct Loose Stone](http://store.karatz.jp/cdn/shop/files/PA034597_b9b64fbe-8bfe-4fec-9647-c67a02d73916.jpg?v=1759628545&width=3227)
![[On sale from 10/6 at 10pm] Brazilian Imperial Topaz 0.394ct Loose](http://store.karatz.jp/cdn/shop/files/PA034555_a8d40a93-ee5c-47c1-b39b-3c34085d382a.jpg?v=1759628722&width=3147)
[On sale from 10/6 at 10pm] Brazilian Imperial Topaz 0.394ct Loose
Sale price¥8,800
![[On Sale at 10 PM on October 6th] Madagascar Golden Iolite (Cordierite) 0.193ct Loose Stone](http://store.karatz.jp/cdn/shop/files/PA034521_096b674b-5591-4711-acd0-f9df63318ff0.jpg?v=1759628928&width=2926)
![[On Sale at 10 PM on October 7th] [Rouge Cut] 5.952ct Loose Almandine Garnet from Mozambique](http://store.karatz.jp/cdn/shop/files/PA034489.jpg?v=1759630524&width=4000)
![[On sale from 10/7 at 10pm] [Rouge cut] 5.841ct loose almandine garnet from Mozambique](http://store.karatz.jp/cdn/shop/files/PA034451.jpg?v=1759630661&width=4000)
![[On Sale 10/7 at 10 PM] [Cat Cut] Brazilian Dendritic Quartz 6.775ct Loose Stone](http://store.karatz.jp/cdn/shop/files/PA034413.jpg?v=1759630823&width=4000)
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.