Paraiba Tourmaline from Brazil, 0.039ct loose stone (CuO:1.6%, MnO:2.9%)
Sale price¥35,800
0.035ct loose Brazilian Paraiba Tourmaline (CuO:1.6%, MnO:3.3%)
Sale price¥29,800
Brazilian Aquamarine 68.088ct Loose Stone with Gem Identification Report
Sale price¥39,800
0.559ct Brazilian Emerald Cat's Eye Loose Stone with Certificate
Sale price¥9,800
Brazilian Emerald Cat's Eye 0.459ct Loose Stone with Certification
Sale price¥9,800
Brazilian Emerald Cat's Eye 1.022ct Loose Stone with Appraisal
Sale price¥12,800
Australian Boulder Opal 41.775 ct Loose Stone
Sale price¥19,800
Australian Boulder Opal 12.216ct Loose
Sale price¥15,800
Green Kyanite from Nepal 0.764ct Loose
Sale price¥6,980
Colombian Trapiche emerald 0.611ct rough stone
Sale price¥59,800
Benitoite 0.352ct loose
Sale price¥298,000
Non-Oil Emerald 1.370ct Loose GIA
Sale price¥1,580,000
Brazilian Dumortierite in Quartz 0.432ct Loose Stone
Sale price¥6,980
Brazilian alexandrite 0.061ct loose
Sale price¥12,800
Brazilian alexandrite 0.058ct loose
Sale price¥11,000
Brazilian alexandrite 0.051ct loose
Sale price¥9,800
Brazilian alexandrite 0.060ct loose
Sale price¥11,000
Salt and pepper diamond 0.446ct loose
Sale price¥39,800
Mozambique Pink Sapphire 0.276ct Loose (Hot Pink Sapphire)
Sale price¥9,800
Goshenite 6.1mm/0.905ct loose stone
Sale price¥7,980
Purple Spinel 4.3mm/0.323ct Loose Stone
Sale price¥6,980
Violet spinel 0.301ct loose
Sale price¥6,980
Pink tourmaline 6.1mm/1.031ct loose stone
Sale price¥12,800
Pink tourmaline 0.466ct loose
Sale price¥8,800
Tanzania Zoisite 0.278ct loose stone
Sale price¥7,980
Zoisite 0.216ct loose stone (heart shape)
Sale price¥7,980
Zoisite 0.162ct loose stone (heart shape)
Sale price¥7,980
Zoisite 0.247ct loose stone (heart shape)
Sale price¥7,980
【Calafuri】K18 Quartzite Pendant Top (Necklace Top)
Sale price¥49,800
[Colorful] Pt900 Diamond 0.65ct Pendant Top
Sale price¥89,800
Andalusite from Spain, 0.425 ct loose
Sale price¥9,800
Spanish Andalusite 0.930ct Loose Gemstone
Sale price¥12,800
Andalusite from Spain, 0.571 ct loose
Sale price¥7,980
Spanish Andalusite 0.536ct Loose Gemstone
Sale price¥9,800
China Hunan Province Cinnabar 1.056ct Loose Gemstone with Certificate
Sale price¥18,800
Sri Lankan Chrysoberyl Cat's Eye 4.3mm/0.582ct Loose Stone
Sale price¥15,800
GGG (Gadolinium Gallium Garnet) 0.511 ct Loose Stone
Sale price¥12,800
Synthetic alexandrite 4.3mm/0.379ct loose stone
Sale price¥9,800
Synthetic Alexandrite 1.241ct Loose Stone
Sale price¥25,800
Synthetic Alexandrite 0.808ct Loose
Sale price¥18,800
Synthetic Alexandrite 0.414ct Loose
Sale price¥12,800
Brazilian Lavender Quartz (Scorolite) 2.211ct Loose
Sale price¥12,800
Brazilian Lavender Quartz (Scorolite) 0.952ct Loose Stone
Sale price¥9,800
Brazil Color Change Amethyst 6.559ct Loose Stone
Sale price¥15,800
Brazil Rose Amethyst 6.325ct Loose Gemstone
Sale price¥12,800
Australian black opal 1.393ct loose
Sale price¥48,800
Sri Lankan Bi-Color Sapphire 0.434ct Loose Stone
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.