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August birthstone

August's birthstones are peridot , sardonyx , and spinel .

Peridot is a gemstone with an impressive refreshing green color like young grass. The mineral name olivine is said to be derived from its resemblance to the color of an olive fruit. It is said that it is sometimes included in meteorites, and they are called parasitic peridots .

Sardonyx is a type of agate , and refers to agate with striped patterns on a brown to reddish brown background. It is a gemstone that has been used as a material for cameos and intaglios since ancient times, and has been loved mainly in Europe. Those without stripes are called thirds.

Spinel is a gemstone that comes in many shades, including red, blue, and pink. It is often produced in the same octahedral shape as diamonds, and its rough form is also popular among collectors. With a high Mohs hardness of 8, it is a gemstone that can be enjoyed as everyday jewelry.

Karatz GemMagazine
" List of August birthstones and birthstones "

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Blue spinel 0.242ct loose Sale price¥6,980

Star spinel 1.210ct loose Sale price¥15,800

Red spinel 0.461ct loose Sale price¥18,800

Pink spinel 0.290ct loose Sale price¥7,980

Purple spinel 0.210ct loose Sale price¥6,980

Purple spinel 0.800ct loose Sale price¥5,980

Pink spinel 0.142ct loose Sale price¥9,800

Bicolor spinel 1.23ct loose Sale price¥79,800

Sold out 【12524174掲載】ホットピンクスピネル 0.280ctルース

Red spinel 0.240ct loose Sale price¥8,800

Orange spinel 0.202ct loose Sale price¥15,800

Purple spinel 0.680ct loose Sale price¥9,800

Spinel 0.790ct loose Sale price¥9,800

Purple spinel 0.730ct loose Sale price¥8,800

Red spinel 0.79ct loose Sale price¥5,980

Red spinel 0.460ct loose Sale price¥3,980

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.

The fifth reprint has been decided and is now on sale at bookstores nationwide and online.

Written by KARATZ, book “Jewelry Illustrated Book”

The book provides explanations about over 300 types of gemstones, from new standard birthstones to rare stones that are hard to find, as well as a diary of our company representative, Mr. Koyama's, gemstone shopping experience in Thailand and Sri Lanka, and tips for photographing gemstones, allowing you to learn about the appeal of gemstones from various perspectives.