![[Available at 10 PM on August 10th] Limited to 27 stones: Peridot (Trilliant Cut) 1 stone (5.0-5.5mm) [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/P1010084_4a2e1c44-445d-4bac-be57-eee3a0f8374b.jpg?v=1754617992&width=4000)
![[Available at 10 PM on October 31st] Limited Quantity: 2mm Benitoite (Top Quality Ice Blue) (Multiple Purchase Discounts Available)](http://store.karatz.jp/cdn/shop/files/20231220223418_b3f5e41c-e847-4869-b888-ca3c686ed03c.jpg?v=1761894582&width=1200)
[Koshu precious stone Kiriko plusthree] Swiss blue topaz 26.821ct loose
Sale price¥59,800
Mexican Hyalite Opal 2.592ct loose
Sale price¥9,800
[12547847 published] Bicolor tourmaline 0.398ct loose
Sale price¥8,800
[On Sale at 10pm on October 5th] American Benitoite 0.262ct Loose Stone
Sale price¥128,000
![[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)
Bicolor sapphire 1.030ct loose from Windsor, Tanzania
Sale price¥89,800
Brazilian Paraiba tourmaline 0.370ct loose (CuO:1.0%, MnO:1.2%)
Sale price¥59,800
Paraiba tourmaline from Mozambique 0.266ct loose
Sale price¥25,800
Bicolor tourmaline 0.418ct loose
Sale price¥3,980
Australian boulder opal 0.874ct loose
Sale price¥3,980
Australian boulder opal 1.156ct loose
Sale price¥3,980
Australian boulder opal 1.173ct loose
Sale price¥5,980
Australian boulder opal 0.982ct loose
Sale price¥6,980
[10/10 22:00 Sale] Brazilian Petalite 0.725ct Loose Stone
Sale price¥4,980
[10/10 22:00 Sale] Brazilian Petalite 1.197ct Loose Stone
Sale price¥7,980
Australian boulder opal 1.868ct loose
Sale price¥18,800
Australian boulder opal 1.675ct loose
Sale price¥14,800
Australian boulder opal 28.880ct loose
Sale price¥59,800
Benitoite 0.095ct loose
Sale price¥18,800
Brazilian Paraiba tourmaline 0.275ct loose (CuO:1.5%.MnO:2.3%)
Sale price¥358,000
Paraiba tourmaline from Brazil 0.154ct loose (CuO:1.1wt%, MnO:1.4wt%)
Sale price¥128,000
Benitoite 2.7mm/0.114ct loose
Sale price¥25,800
Prehnite 3.870ct loose
Sale price¥3,980
Playnight 3.085ct loose
Sale price¥3,980
Prehnite 3.874ct loose
Sale price¥3,980
[Camellia cut] Mexican fire opal 1.270ct loose with patch
Sale price¥98,000
Brazilian particolor Paraiba tourmaline 0.26ct loose GIA
Sale price¥598,000
Brazilian Paraiba tourmaline 0.226ct loose (CuO:0.7%, MnO:2.5%)
Sale price¥39,800
Pt950 Benitoite 0.10ct Aquamarine Blue Diamond Ring
Sale price¥89,800
Bicolor tourmaline 0.591ct loose (rose cut)
Sale price¥8,980
Bicolor tourmaline 0.435ct loose (rose cut)
Sale price¥5,980
[On Sale at 10pm on October 1st] Australian Boulder Opal 9.120ct Loose
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.