Ruby

Ruby is the birthstone of July. It is a type of corundum, the same mineral as sapphire, and is a red gemstone. It is also said to be the representative of red gemstones, and has a long history of being cherished all over the world since ancient times. With a hardness of 9, it is the second hardest after diamond and is highly durable, making it a gemstone that can be enjoyed on a daily basis as jewelry.

Karatz GemMagazine
" Ruby "

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Ruby from Greenland 0.258ct loose with certificate

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Ruby from Greenland 0.312ct loose with certificate

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Ruby from Greenland 4.2mm/0.414ct loose with certificate

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Ruby from Greenland 4.2mm/0.359ct loose with certificate

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Ice ruby from Greenland 0.416ct loose with certificate

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Ice ruby from Greenland 0.341ct loose with certificate

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Ice ruby from Greenland 0.340ct loose with certificate

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Ruby from Greenland 2.3mm/0.059ct loose with certificate

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Ice ruby from Greenland 3.1mm/0.130ct loose with certificate

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Ruby 0.166ct loose

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Ruby 0.168ct loose

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Ruby 3.0mm/0.144ct loose

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Ruby 0.144ct loose

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Ruby 3mm/0.167ct loose

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Ruby 0.185ct loose

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Ruby in hook sight 9.870ct loose with patch

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Ruby in hook site 16.787ct loose with emblem

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Ruby from Greenland 0.340ct loose with certificate

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Ruby and ice ruby from Greenland 2 stone set 0.92ct loose with certificate

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Ruby and ice ruby from Greenland 2 stone set 0.82ct loose with certificate

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Ruby from Greenland 0.429ct loose with certificate

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Ruby from Greenland 0.365ct loose with certificate

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Ruby from Greenland 0.337ct Ruth certificate included

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Ruby from Greenland 0.348ct Ruth certificate included

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Ruby from Greenland 0.311ct with certificate

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Ruby and ice ruby from Greenland 2 stone set 0.84ct loose with certificate

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Greenland Ruby/Ice Ruby 2 stone set 0.85ct loose with certificate

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Ruby from Greenland 0.310ct loose with certificate

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Ruby from Greenland 0.704ct loose with certificate

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Ruby from Greenland 0.655ct loose with certificate

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Ruby from Greenland 0.272ct loose with certificate

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Greenland Ruby 0.665ct Certificate

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【様専用】【12537186掲載】□グリーンランド産ルビー 0.381ctルース

Ruby from Greenland 0.381ct loose with certificate

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Burmese unheated star ruby 0.487ct loose

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Burmese star ruby 0.492ct loose

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Crimson Red Ruby from Thailand 1.160ct Ruth GIA

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Unheated ruby from Mozambique 0.30ct loose GIA

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Pigeon blood ruby 0.40ct loose AIGS

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Ruby from Mozambique 5mm/0.762ct loose

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Burmese ruby 3.5mm/0.224ct loose

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Ruby 0.193ct loose (princess cut)

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Ruby 0.192ct loose (princess cut)

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Ruby 0.596ct loose (buff top)

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Ruby 0.102ct loose (bucket cut)

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Ruby 0.104ct loose (bucket cut)

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Ruby in Granite (Granite) 22.990ct loose with patch

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Burmese unheated star ruby 1.289ct loose

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Unheated Pigeon Blood Ruby 0.430ct Loose AIGS

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.

KARATZ・Five Commitments