![[On Sale] Limited to 15 Stones: Spinel & Friends Gacha - Musgravite, Taaffeite, Cobalt Garnite, and more. Bonus: 1 Platinum Spinel. Discounts available for multiple purchases.](http://store.karatz.jp/cdn/shop/files/collage_f5f33dc5-5eb0-473e-95ea-b3a1eaca4e19.png?v=1757146047&width=2000)
![[Available at 10 PM on August 24th] Limited to 12 stones: Madagascar Sapphirine (Sapphirine) Loose Stone [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/P1010371_a123a6b4-46a8-4394-9eac-427d8a3707ec.jpg?v=1755996019&width=4000)
【9/5 22時販売】《限定7石》ロシア産ノンオイルエメラルド1石ルース(1.6-1.7ｍｍ,プリンセスカット)《複数購入割引有》
Sale price¥9,800
![[On sale at 10 PM on September 5th] Limited to 4 stones: One loose Russian demantoid garnet (oval cut, approximately 3 x 2 mm) [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/S__218431492_56620792-286c-4261-91b5-7c3159b666aa.jpg?v=1756867553&width=1280)
![[Available at 10 PM on August 30th] Limited to 10 stones: Madagascar Sapphirine (Sapphirine) Loose Stone [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/P1010321_de80d97b-aaa8-4f57-b4f7-655e79ff8b8e.jpg?v=1755939478&width=4000)
![[Available at 10 PM on August 31st] [Limited to 9 stones] Brazilian Rainbow Aquamarine Loose Stone (Average 1.0 carat, Pear Sheep Cut) [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/collage_a4d9bef3-5745-4730-8adf-5950e9068581.png?v=1756459860&width=2000)
![[On sale at 10 PM on September 5th] [Limited to 6 stones] Tanzanian Bicolor Grossular Garnet (1 loose stone, average 0.55 carats) [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/P1010132.jpg?v=1756866630&width=4000)
![[On sale September 5th at 10 PM] Limited to 20 stones: Russian Demantoid Garnet (Horsetail inclusions, approximately 2mm) Loose Stone [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/P1010052_5323a44e-e18e-4219-94e5-7d7bb0ecab84.jpg?v=1756867452&width=4000)
![[On sale at 10 PM on September 5th] [Limited to 3 stones] Brazilian Elestial Amethyst (1 loose stone, 3.5-3.9mm) [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/collage_a4907829-a1ef-40d2-ae34-572edef35c78.png?v=1756866168&width=2000)
[8/16 22:00 Sale] Sri Lankan Yellow Sapphire 0.300ct Loose
Sale price¥15,800
[On Sale at 10 PM on August 16th] Mexican Cantera Opal 5.882ct Loose
Sale price¥39,800
[On Sale at 10 PM on August 17th] Mexican Cantera Opal 2.125ct Loose
Sale price¥39,800
[On sale at 10pm on August 19th] Sliced Trapiche Diamond 0.228ct Loose
Sale price¥18,800
Colombian emerald cat's eye 0.417ct loose
Sale price¥39,800
Diamond 2.810ct rough stone
Sale price¥9,800
Red beryl 0.166ct loose
Sale price¥49,800
Bicolor tourmaline 1.220ct loose
Sale price¥15,800
Bicolor tourmaline 0.880ct loose
Sale price¥8,800
Aquamarine 0.940ct loose stone
Sale price¥8,800
Opal 1.020ct loose
Sale price¥29,800
Morganite 0.960ct loose (Asscher cut)
Sale price¥9,800
Zircon 0.654ct loose stone
Sale price¥8,800
Purple spinel 0.825ct loose stone
Sale price¥5,980
Tourmaline cat's eye 4.590ct loose
Sale price¥12,800
Tourmaline cat's eye 4.790ct loose
Sale price¥6,980
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.