Mozambique Aquamarine 0.216ct Loose Stone
Sale price¥6,980
American Peridot 0.339ct Loose Stone
Sale price¥6,980
Sri Lankan Chrysoberyl Cat's Eye 4.1mm/0.490ct Loose
Sale price¥15,800
Tanzanian Kornerupine 0.210ct loose stone
Sale price¥11,000
Tanzanian Kornerupine 0.220ct loose stone
Sale price¥6,980
Tanzanian Kornerupine 0.229ct loose stone
Sale price¥9,800
Tanzanian Kornerupine 0.201ct loose stone
Sale price¥14,800
Tanzanian Kornerupine 0.200ct Loose Stone
Sale price¥9,800
Green Kyanite from Nepal 0.764ct Loose
Sale price¥6,980
Purple Spinel 4.3mm/0.323ct Loose Stone
Sale price¥6,980
Violet spinel 0.301ct loose
Sale price¥6,980
Tanzania Zoisite 0.278ct loose stone
Sale price¥7,980
Zoisite 0.216ct loose stone (heart shape)
Sale price¥7,980
Zoisite 0.247ct loose stone (heart shape)
Sale price¥7,980
Andalusite from Spain, 0.425 ct loose
Sale price¥9,800
Sri Lankan Chrysoberyl Cat's Eye 4.3mm/0.582ct Loose Stone
Sale price¥15,800
Synthetic alexandrite 4.3mm/0.379ct loose stone
Sale price¥9,800
Synthetic Alexandrite 0.414ct Loose
Sale price¥12,800
Tanzanian Tanzanite 4.1mm/0.295ct Loose Stone
Sale price¥9,800
Internally Flawless Diamond 4.3mm/0.300ct Loose (F, IF, 3Excellent) GIA
Sale price¥98,000
Tanzanian Tanzanite 0.406ct Loose Stone
Sale price¥12,800
0.289 ct Loose Spanish Cobalt Calcite with Certificate
Sale price¥29,800
Spanish Cobalt Calcite 0.253ct Loose Stone with Certificate
Sale price¥25,800
Sri Lankan Yellow Sapphire 0.517ct Loose Gemstone
Sale price¥12,800
Brazilian Paraiba Tourmaline 0.170ct Loose Stone (CuO: 2.1%, MnO: 1.1%)
Sale price¥258,000
Pink Diamond 0.137ct Loose (FANCY DEEP BROWNISH PINK, I-1)
Sale price¥29,800
Ruby 0.286ct Loose Stone with Certificate
Sale price¥22,800
0.168ct Pakistan Vayrynenite Loose Gemstone
Sale price¥35,800
Brazilian Indicolite Tourmaline 0.352ct Loose Stone with Certification
Sale price¥29,800
Madagascar Bekily Blue Garnet (Color Change Garnet) 0.257ct Loose Stone
Sale price¥25,800
Benitoite 0.231ct loose
Sale price¥220,000
Benitoite 0.272ct loose stone (emerald cut)
Sale price¥248,000
Sapphire 0.461ct loose stone
Sale price¥12,800
Andalusite 0.672ct loose
Sale price¥8,800
Spanish Andalusite 0.435ct loose stone
Sale price¥6,980
Colombian emerald 0.345ct loose stone (silky type)
Sale price¥15,800
0.308ct Unset Yellow Sapphire (Sri Lankan)
Sale price¥13,800
Diamond 0.402ct Loose (H, VS2, Flanders Cut)
Sale price¥79,800
Indonesian Parasitic Peridot 0.276ct Loose Stone
Sale price¥98,000
Madagascar Pezzottaite 0.229ct loose stone
Sale price¥15,800
Bicolor Grossular Garnet from Kenya (Bicolor Tsavorite) 0.496ct Loose
Sale price¥14,800
Untreated Brazilian green tourmaline, 0.456 ct, loose (teal color)
Sale price¥13,800
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.