![[On Sale 5/28 10PM] Bungo and Alchemist x KARATZ Collaboration Jewelry - Vol. 4: Bungo Ring [Sakaguchi Ango Model Ring]](http://store.karatz.jp/cdn/shop/files/bungou_pt4_bnr_03b_1080x1080_0583a7bf-27be-4ac0-b5cf-9654b94847b7.jpg?v=1779787573&width=1080)
[On sale June 14th at 10 PM] Australian Black Opal 1.080ct Loose Stone
Sale price¥39,800
Spanish Sphalerite 9.2mm/3.980ct loose stone
Sale price¥49,800
[12550851] 2.944ct Mozambique pink tourmaline loose stone
Sale price¥39,800
American Red Beryl 0.147ct Loose
Sale price¥35,800
0.065ct loose Paraiba tourmaline from Brazil (CuO: 1.6%, MnO: 2.4%)
Sale price¥49,800
American Red Beryl 0.132ct Loose
Sale price¥33,800
American red beryl 0.143ct loose
Sale price¥35,800
[Sale on June 13th at 10 PM] Ruby 0.820ct Loose Stone - Hogikyo
Sale price¥39,800
Blue watermelon tourmaline 6.815ct loose
Sale price¥49,800
Loose Paraiba Tourmaline from Brazil, 0.059ct (CuO: 1.4%, MnO: 2.7%)
Sale price¥45,800
Brazilian Paraiba Tourmaline 0.065ct Loose Stone (CuO: 2.0%, MnO: 2.4%)
Sale price¥49,800
0.066ct loose Brazilian Paraiba Tourmaline (CuO: 1.5%, MnO: 2.2%)
Sale price¥45,800
Loose 0.061ct Brazilian Paraiba Tourmaline (CuO: 1.7%, MnO: 2.2%)
Sale price¥49,800
Brazilian Paraiba Tourmaline 0.055ct Loose (CuO:1.9%, MnO:2.2%)
Sale price¥45,800
0.062ct Loose Paraiba Tourmaline from Brazil (CuO: 1.7%, MnO: 2.5%)
Sale price¥47,800
Brazilian Paraiba Tourmaline 0.056ct Loose Stone (CuO:2.1%, MnO:2.2%)
Sale price¥39,800
Kunzite from Afghanistan 12mm/8.834ct loose stone
Sale price¥39,800
[On sale May 31, 10 PM] Afghan Hackmanite 0.205ct Loose Stone
Sale price¥36,800
Sri Lankan Star Sapphire 6.477ct Loose
Sale price¥49,800
Mexican Opal 9.6mm/1.803ct Loose (Contralus Opal)
Sale price¥49,800
[Koshu Precious Stones plusthree] Citrine 5.121ct Loose
Sale price¥35,800
Colombian Trapiche emerald 0.418ct rough stone
Sale price¥39,800
[COLORFUL] Pt900 Diamond 1.00ct Pendant (Necklace)
Sale price¥49,800
![[On sale May 28th, 10 PM] Adult Cbonstar Jewelry Vol. 3: Adult Cbonstar Pendant Mirage Edition <silver model></silver>](http://store.karatz.jp/cdn/shop/files/P8061894.jpg?v=1761201097&width=4000)
![[Limited stock] "Bakuten!!" x KARATZ collaboration jewelry, Onaga pendant](http://store.karatz.jp/cdn/shop/files/PB130040.jpg?v=1700134029&width=2832)
[Limited stock] "Bakuten!!" x KARATZ collaboration jewelry, Onaga pendant
Sale priceFrom ¥24,800
![[On Sale 10 PM, June 7] *Limited to 3 Sets* 1.0ct/D/VS-VVS/IDEAL Lab-Grown Diamond (Synthetic Diamond) & 2 Rare Cabochon Stones (Total of 3 Stones Included) *Multiple Purchase Discount Available*](http://store.karatz.jp/cdn/shop/files/collage_ae0e6f4c-425c-453a-84b2-b5046b4b211f.png?v=1777937307&width=2250)
Additional fee: +40,000 yen
Sale price¥40,000
1.758 ct Ruby Loose Stone from Vietnam with Identification Report
Sale price¥49,800
Yellow diamond 0.188ct loose (FANCY INTENSE YELLOW, VS1)
Sale price¥47,800
Mozambique Ruby 0.544ct Loose Stone with Certificate of Authenticity
Sale price¥39,800
Additional charge: K18YG (base metal) + 10,000 yen
Sale price¥37,000
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.