Birthstone list
Montana Sapphire 0.235ct loose (yellow sapphire)
Sale price¥8,800
Montana Sapphire 0.458ct Loose (Bi-Color Sapphire)
Sale price¥14,800
Montana Sapphire 0.416ct Loose (Bi-Color Sapphire)
Sale price¥12,800
Pink diamond 0.021 loose (FANCY INTENSE PURPLE PINK, SI2)
Sale price¥49,800
Pink Diamond 0.073 Loose (FANCY DEEP PURPLISH PINK, SI1)
Sale price¥88,800
Madeira citrine 0.170ct loose
Sale price¥5,980
Montana Sapphire 0.515ct loose (bicolor sapphire)
Sale price¥19,800
Montana Sapphire 0.361ct loose (yellow sapphire)
Sale price¥14,800
Montana Sapphire 0.561ct loose (bicolor sapphire)
Sale price¥22,800
Montana Sapphire 0.443ct loose (green sapphire)
Sale price¥15,800
Montana Sapphire 0.397ct loose (bicolor sapphire)
Sale price¥15,800
Montana sapphire 0.359ct loose (blue sapphire)
Sale price¥15,800
Montana Sapphire 0.449ct loose (bicolor sapphire)
Sale price¥17,800
Pink tourmaline 0.656ct loose
Sale price¥8,800
Tourmaline 0.731ct loose
Sale price¥6,980
Mexican Fire Opal 0.277ct Loose (Faceted Cut)
Sale price¥5,980
Mexican Fire Opal 0.472ct Loose (Star Cut, Faceted Cut)
Sale price¥9,800
Mexican Fire Opal 0.564ct Loose (Faceted Cut)
Sale price¥15,800
Colombian trapiche emerald (reverse trapiche) 0.457ct rough stone
Sale price¥36,800
Mexican Fire Opal 0.290ct Loose (Faceted Cut)
Sale price¥8,800
Sri Lankan Yellow Sapphire 0.459ct Loose
Sale price¥12,800
Brazilian Santa Maria Aquamarine 0.158ct loose
Sale price¥6,980
Mexican Opal 0.502ct Loose (Faceted Cut)
Sale price¥12,800
Mexican Opal 0.790ct Loose (Contrarus Opal, Faceted Cut)
Sale price¥18,800
Twin star sapphire from Sri Lanka 2.523ct loose
Sale price¥98,000
Pink amethyst 3.496ct loose
Sale price¥6,980
Rubellite 0.549ct loose
Sale price¥19,800
Yellow tourmaline 0.277ct loose
Sale price¥8,800
Green tourmaline 1.687ct loose
Sale price¥15,800
Pink tourmaline 0.669ct loose
Sale price¥9,800
Green tourmaline 2.007ct loose
Sale price¥29,800
Green tourmaline 2.144ct loose
Sale price¥25,800
Bicolor Tourmaline 9.0mm/2.507ct Loose
Sale price¥29,800
Green tourmaline 3.334ct loose
Sale price¥25,800
Green tourmaline 0.559ct loose
Sale price¥6,980
Pink tourmaline 0.632ct loose
Sale price¥9,800
Pink tourmaline 1.575ct loose
Sale price¥14,800
Pink tourmaline 0.341ct loose
Sale price¥8,800
Green tourmaline 0.388ct loose
Sale price¥8,800
Green tourmaline 1.258ct loose
Sale price¥29,800
Aventurine aquamarine 1.022ct loose
Sale price¥6,980
Aventurine aquamarine 0.840ct loose
Sale price¥8,800
Mexican Hyalite Opal 0.774ct Loose (Faceted Cut)
Sale price¥8,800
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.