Loose Australian Black Opal 0.397ct
Sale price¥12,800
Australian black opal 0.439ct loose
Sale price¥11,800
Australian black opal 0.251ct loose stone
Sale price¥9,800
Brown Diamond 0.531ct Loose (FANCY DARK BROWN, SI-2)
Sale price¥39,800
Mexican egg-in-opal 0.672ct loose stone
Sale price¥11,000
Mexican egg-in-opal 0.865ct loose stone
Sale price¥12,800
Australian black opal 2.277ct loose stone (play of color on both sides)
Sale price¥34,800
Gray Diamond 0.158ct Loose (FANCY DARK GRAY, I-1)
Sale price¥45,800
Mexican Opal 0.502ct Loose (Faceted Cut)
Sale price¥9,800
Mexican Cantera Opal 15.195ct Loose
Sale price¥12,800
[12551250] Brazilian oil-free emerald 0.120ct loose stone
Sale price¥110,000
Mexican Fire Opal 3.425ct Loose
Sale price¥22,800
Mexican Fire Opal 1.743ct Loose
Sale price¥18,800
Mexican Fire Opal 2.235ct Loose
Sale price¥19,800
Nepalese Bicolor Kyanite 6.3mm/0.903ct Loose Stone
Sale price¥9,800
Nepalese bicolor kyanite 0.987ct loose stone
Sale price¥9,800
Mexican Fire Opal 1.424ct Loose
Sale price¥39,800
Mexican Fire Opal 1.833ct Loose
Sale price¥39,800
0.281ct Tanzanian Yellow Sapphire Loose Gemstone
Sale price¥6,980
Untreated Sri Lankan Star Sapphire 0.961ct Loose Stone
Sale price¥11,800
Unheated Sri Lankan star sapphire 3.9mm/0.499ct loose gemstone
Sale price¥8,800
Colombian emerald with pyrite 0.248ct rough stone
Sale price¥12,800
0.517ct loose blue sapphire from Sri Lanka
Sale price¥18,800
Sri Lankan blue sapphire, 0.557 ct, loose
Sale price¥22,800
Pink Diamond 0.074ct Loose (FANCY LIGHT PURPLE PINK, I-1)
Sale price¥39,800
Pink Diamond (Treated) 0.095ct Loose (FANCY VIVID PURPLISH PINK, SI1)
Sale price¥26,800
Loose White Diamond 0.108ct (FANCY WHITE, I-1)
Sale price¥55,800
Pt950 Ice Blue Diamond (Treatment) 0.197ct Ring
Sale price¥128,000
Diamond 0.402ct Loose (H, VS2, Flanders Cut)
Sale price¥79,800
Gray Diamond 0.107ct Loose (FANCY GRAY, I-1)
Sale price¥39,800
3.020 ct Pakistani emerald in quartz loose gemstone
Sale price¥18,800
Star Sapphire from Sri Lanka, 4.758 ct Loose Stone (Color Shift)
Sale price¥158,000
Pink Diamond 2.1mm/0.034ct Loose (FANCY PURPLE PINK, I-1)
Sale price¥34,800
【Sakura Shape】Synthetic Sapphire 8.8mm/3.631ct Loose Stone
Sale price¥39,800
Peruvian Bicolor Blue Opal 4.379 ct Loose Gemstone
Sale price¥6,980
0.345ct Loose Blue Sapphire from Sri Lanka
Sale price¥12,800
0.442ct Loose Blue Sapphire from Sri Lanka
Sale price¥22,800
0.455ct Loose Madagascar Blue Sapphire
Sale price¥25,800
0.133ct Loose Blue Sapphire from Madagascar
Sale price¥18,800
0.329ct Loose Blue Sapphire from Sri Lanka
Sale price¥15,800
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.