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Sapphire is a gemstone that is said to be named for its resemblance to sapphire. It is said to be mainly produced in small grains of less than 0.5 ct, and is one of the rare stones that are rarely available on the market. In addition to blue, which resembles sapphire, you may also find green, pink, yellow, and colorless. It is also characterized by strong pleochroism, which means that it appears to have different hues depending on the viewing angle.

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スリランカ産サファリン 0.116ctルース

[On sale at 10pm on September 16th] Sri Lankan saffron 0.116ct loose stone with certificate of authenticity Sale price¥25,800
[Available at 10 PM on August 30th] Limited to 10 stones: Madagascar Sapphirine (Sapphirine) Loose Stone [Multiple purchase discounts available]

[Available at 10 PM on August 30th] Limited to 10 stones: Madagascar Sapphirine (Sapphirine) Loose Stone [Multiple purchase discounts available] Sale price¥5,980
[Available at 10 PM on August 24th] Limited to 12 stones: Madagascar Sapphirine (Sapphirine) Loose Stone [Multiple purchase discounts available]

[Available at 10 PM on August 24th] Limited to 12 stones: Madagascar Sapphirine (Sapphirine) Loose Stone [Multiple purchase discounts available] Sale price¥2,980
スリランカ産サファリン 0.466ctルース 鑑別書

0.466ct Saffron Loose Stone with Certificate of Authenticity Sale price¥37,800
スリランカ産サファリン 0.140ctルース

[Available at 10 PM on August 3rd] Sri Lankan saffron 0.140ct loose stone with certificate of authenticity Sale price¥12,800
サファリン 0.320ctルース

Sri Lankan saffron 0.320ct loose stone with certificate of authenticity Sale price¥29,800
サファリン（サファーリン） 0.245ctルース

Sapphire from Sri Lanka (Safarin) 0.245ct loose Sale price¥12,800
サファリン 0.517ctルース

Sri Lankan saffron 0.517ct loose stone, Japan-German Sale price¥59,800
スリランカ産サファリン 0.121ctルース

Sri Lankan saffron 0.121ct loose stone Sale price¥18,800
サファリン 0.264ctルース

Sri Lankan saffron 0.264ct loose stone with certificate Sale price¥22,800
Limited quantity: Sri Lankan 2mm sapphire (sapphire) 1 loose stone (with identification certificate for all stones) Discounts for multiple purchases

Limited quantity: Sri Lankan 2mm sapphire (sapphire) 1 loose stone (with identification certificate for all stones) Discounts for multiple purchases Sale price¥5,980
Sold out サファリン 0.268ctルース

[Available at 10 PM on August 7th] Sri Lankan saffron 0.268ct loose stone with certificate of authenticity
Sold out スリランカ産サファリン 0.261ctルース 鑑別書

Sri Lankan saffron 0.261ct loose stone with certificate

KARATZ Custom Made

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.

KARATZ・Five Commitments

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.