Pink sapphire 0.225ct loose
Sale price¥6,980
Tanzanite 0.449ct loose
Sale price¥6,980
Oregon Sunstone 0.976ct loose
Sale price¥19,800
Rhodolite garnet 0.990ct loose
Sale price¥5,980
Amazon green opal 1.120ct loose
Sale price¥5,980
Synthetic rutile 5.8mm/0.904ct loose stone
Sale price¥15,800
YAG (Yttrium Aluminum Garnet) 7mm/1.775ct Loose Stone
Sale price¥12,800
Dioptase from Namibia 0.229ct loose Japanese-German book
Sale price¥79,800
Paraiba tourmaline from Mozambique 0.272ct loose
Sale price¥15,800
Paraiba tourmaline from Mozambique 0.596ct loose
Sale price¥29,800
Paraiba tourmaline from Mozambique 0.273ct loose
Sale price¥18,800
Paraiba tourmaline from Mozambique 0.228ct loose
Sale price¥12,800
Bicolor Andesine 6mm/0.756ct loose
Sale price¥15,800
Color change Andesine 6mm/0.753ct loose
Sale price¥15,800
Bicolor Andesine 6mm/0.691ct loose
Sale price¥15,800
Pink spinel 0.409ct loose
Sale price¥8,800
Brazilian Rhodonite 2.126ct Ruth Japanese-German Edition
Sale price¥88,800
Paraiba Tourmaline from Mozambique 2.037ct loose stone with gem analysis
Sale price¥598,000
![[Available on Saturday, August 16th at 10 PM] "PSYCHO-PASS" x KARATZ Collaboration Jewelry: Public Safety Bureau Criminal Investigation Division Device-Inspired Ring - Enforcer Design [Kogami Shinya Model] "Blue Spinel"](http://store.karatz.jp/cdn/shop/files/ca55ad9a7680a3c3acf9653316704dc3.png?v=1747953942&width=3519)
Bicolor Andesine 6mm/0.852ct loose (color shift)
Sale price¥18,800
Bicolor Andesine 6mm/0.824ct loose (color shift)
Sale price¥18,800
Bicolor Andesine 6mm/0.699ct loose (color shift)
Sale price¥18,800
Bicolor Andesine 6mm/0.783ct loose (color shift)
Sale price¥18,800
Australian boulder opal 3.695ct loose
Sale price¥15,800
Australian boulder opal 1.552ct loose
Sale price¥12,800
Sri Lankan star sapphire 1.487ct loose
Sale price¥12,800
Australian boulder opal 2.470ct loose
Sale price¥8,800
Australian boulder opal 4.729ct loose
Sale price¥19,800
Aventurine Aquamarine Cat's Eye 1.567ct Loose
Sale price¥5,980
Scapolite Cat's Eye 9.733ct Loose
Sale price¥8,800
Quartz 96.732ct loose (explosion crystal)
Sale price¥4,980
Spinel 1.680ct loose
Sale price¥8,800
Russian demantoid garnet (horsetail recognized) 5.2mm/0.702ct loose
Sale price¥228,000
Dioptase from Namibia 3.3mm/0.162ct loose Japanese-German edition
Sale price¥98,000
Hemimorphite 34.490ct loose
Sale price¥69,800
Pink tourmaline 0.516ct loose
Sale price¥6,980
Pink tourmaline 4.0mm/0.300ct loose stone
Sale price¥6,980
Mexican Fire Opal 1.150ct Loose
Sale price¥39,800
Oregon Sunstone 1.333ct Loose
Sale price¥12,800
Colombian pyrite in emerald 4.592ct loose
Sale price¥128,000
Cambodian blue zircon (Ratanakiri blue) 2.567ct loose
Sale price¥35,800
Green sapphire 0.518ct loose (teal green)
Sale price¥9,800
Color change sapphire 0.946ct loose
Sale price¥39,800
Pink sapphire from Mozambique 0.213ct loose (hot pink sapphire)
Sale price¥14,800
Paraiba tourmaline from Mozambique 0.243ct loose
Sale price¥19,800
Unheated silky pink sapphire from Vietnam 0.426ct loose
Sale price¥18,800
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.