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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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Sold out パラサイティックペリドット 0.041ルース
Sold out パラサイティックペリドット 0.038ルース
Sold out タンザニア産ピンクスピネル 0.452ctルース
Sold out パラサイティックペリドット 0.073ctルース
Sold out パラサイティックペリドット 0.071ctルース
Sold out Night purple 13 stone set (hackmanite, tanzanite, black spinel, diamond, etc.) Half eternity ring set (2.0mm)
Sold out Tanzanian Mahenge Spinel 2-stone loose set (hot pink spinel, 1.8mm) {Multiple purchase discount available}
Sold out K18ミャンマー産レッドスピネル0.59ct・ピンクダイヤモンド ペンダントトップ(ネックレストップ)
Sold out Madagascar gray spinel (green fluorescent type) 1 loose stone {Multiple purchase discounts available}
Sold out コバルトスピネル 0.135ctルース
Sold out ピンクスピネル 0.441ctルース
Sold out スピネル 0.393ctルース
Sold out パープルスピネル 0.364ctルース
Sold out ミャンマー産レッドスピネル 0.348ctルース
Sold out Tanzania color change spinel 0.197ct loose stone
Sold out ピンクスピネル 0.275ctルース
Sold out アメリカ産ペリドット 0.238ctルース
Sold out ミャンマー産グレースピネル(プラチナスピネル) 0.669ctルース
Sold out K18 Myanmar spinel 0.37ct earrings
Sold out パラサイティックペリドット 0.528ctルース
Sold out Orange spinel 0.116ct loose
Sold out オレンジスピネル 0.221ctルース
Sold out Hot pink spinel 0.086ct loose
Sold out Gray spinel (platinum spinel) 0.405ct loose
Sold out Red spinel 0.433ct loose
Sold out ペリドット 0.798ctルース
Sold out ピンクスピネル 0.394ctルース
Sold out グレースピネル(プラチナスピネル) 0.376ctルース
Sold out Peridot green diamond (treatment) 0.071ct loose (equivalent to VS class)
Sold out ルードヴィッヒアイトインペリドット 0.661ctルース
Sold out スリランカ産コバルトスピネル 0.647ctルース
Sold out ヴァイオレットスピネル 0.238ctルース
Sold out スピネル 0.652ctルース
Sold out Paracytic peridot 2mm/0.028ct loose
Sold out コバルトスピネル 0.153ctルース
Sold out ミャンマー産ホットピンクスピネル 0.513ctルース
Sold out スリランカ産パープルスピネル 0.903ctルース
Sold out スリランカ産ピンクスピネル 0.838ctルース
Sold out スリランカ産ピンクスピネル 0.429ctルース
Sold out スリランカ産ピンクスピネル 0.416ctルース
Sold out アメリカ産ペリドット 1.355ctルース
Sold out アメリカ産ペリドット 1.177ctルース
Sold out American Peridot 1.242ct Loose Stone
Sold out Violet cobalt spinel from Sri Lanka 0.560ct loose Japanese and German (Ockhampedia Mine)
Sold out 【サンジェ氏】ブルースピネル 0.810ctルース

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.