Green Tourmaline 6mm/0.991ct Loose
Sale price¥15,800
Goshenite 6mm/0.896ct loose stone
Sale price¥12,800
Goshenite 6mm/0.866ct loose stone
Sale price¥12,800
Brazilian dumortierite in quartz 1.894ct loose
Sale price¥19,800
Brazilian Dumortierite in Quartz 2.932ct loose
Sale price¥25,800
Silky sapphire from Sri Lanka 1.319ct loose
Sale price¥15,800
Silky sapphire from Sri Lanka 0.981ct loose
Sale price¥14,800
Silky sapphire from Sri Lanka 1.036ct loose
Sale price¥12,800
Silky sapphire from Sri Lanka 0.920ct loose
Sale price¥14,800
Silky sapphire from Sri Lanka 1.086ct loose
Sale price¥15,800
Brazilian dumortierite in quartz 1.796ct loose
Sale price¥15,800
Brazilian dumortierite in quartz 3.247ct loose
Sale price¥25,800
Brazilian dumortierite in quartz 1.517ct loose
Sale price¥12,800
Silky sapphire from Sri Lanka 0.868ct loose
Sale price¥12,800
Lazurite in quartz from Madagascar 7.5mm/1.600ct loose
Sale price¥18,800
Mexican egg-in-opal 1.243ct loose stone
Sale price¥14,800
Brazilian Paraiba tourmaline in quartz 0.871ct loose
Sale price¥18,800
Additional charge: K18WG (base metal) + 25,000 yen
Sale price¥25,000
Additional charge: K18PG (base metal) + 20,000 yen
Sale price¥20,000
Additional charge for resizing: 16,000 yen
Sale price¥16,000
Benitoite 1.8mm/0.025ct loose stone (colorless benitoite)
Sale price¥15,800
Benitoite 1.8mm/0.025ct loose stone (colorless benitoite)
Sale price¥12,800
Tanzanian Golden Sheen Sapphire 3.8mm/0.301ct Loose Stone
Sale price¥13,800
Russian rough diamond (sawable) 0.101ct loose
Sale price¥25,800
Additional charge: K18YG (base metal) + 10,000 yen
Sale price¥12,000
Additional charge: K18PG (base metal) + 5,000 yen
Sale price¥12,000
Additional charge: K18WG (base metal) + 15,000 yen
Sale price¥17,000
Additional charge: K18WG (base metal) + 10,000 yen
Sale price¥12,000
Additional charge: K18PG (base metal) + 20,000 yen
Sale price¥25,000
Additional charge: K18PG (base metal) + 20,000 yen
Sale price¥25,000
Tanzanian Lavender Tanzanite 0.382ct Loose Stone
Sale price¥12,800
Tanzanian Lavender Tanzanite 0.498ct Loose Stone
Sale price¥14,800
Purple spinel 0.955ct loose stone
Sale price¥19,800
Greenland Tugtupite 0.140ct loose stone
Sale price¥15,800
Brazilian Alexandrite 0.072ct loose stone (princess cut)
Sale price¥18,800
Brazilian Alexandrite 0.069ct loose stone (princess cut)
Sale price¥17,800
Mexican Cantera Opal 5.204ct Loose
Sale price¥12,800
Madagascar sapphire 0.377ct loose stone
Sale price¥12,800
Myanmar Ubaite Tourmaline 4.0mm/0.251ct Loose Stone
Sale price¥22,800
Italian Leucite 0.346ct loose stone (play of color)
Sale price¥12,800
Mexican Fire Agate 6.090ct Loose Stone
Sale price¥14,800
Pakistani Clinohumite 1.440ct Loose Stone, Japan-Germany Exchange
Sale price¥29,800
Namibian Jeremejevite 0.307ct loose stone by Nikkei
Sale price¥22,800
Emerald 0.308ct loose stone
Sale price¥14,800
American Benitoite 0.084ct loose stone (colorless Benitoite)
Sale price¥12,800
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.