Showing posts with label beryl. Show all posts
Showing posts with label beryl. Show all posts

Thursday, February 2, 2023

Aquamarine Is Emerald's Cleaner First Cousin

Queen Elizabeth received her acquamarine taria, earrings, and necklace from the people of Brazil in 1953 and 1957. Later she added more aquamarine pieces to her collection.

On Monday we discussed colored gemstones. Today let's focus on Aquamarine (Be3Al2Si6O18) as it has no or few visible inclusions. As a type 1 gemstone, it is both eye clean and loupe clean, as well as, a relatively hard gemstone, rating a 7.5 - 8 on Moh's Hardness Scale making it strong enough for everyday wear.

Photo: Gemstones (on YouTube) as it was found in nature.

What a difference a cut and polish make. This is the famous Roosevelt  Aquamarine, which President Franklin D. Roosevelt gave to Eleanor Roosevelt.

The teal gemstone is a beryl just like its green (or red) first cousin, an emerald. A few of the key differences between the 2 gemstones are worth noting. They include emerald has many inclusions (internal flaws) and is rare in nature making it expensive while aquamarine is free of inclusions and abundant in nature making it less expensive.  

The Don Padro Aquamarine

March's birthstone, as well as, the state stone of Colorado was named after the waters of the bluish-green sea. The sea beryl gets its depth of color from the amount of iron in the crystal. Darker-hued blues and greenish blues are the most valuable aquamarine gems. Maxine, a rare deep blue aquamarine, has its own special name. Aquamarine is found mainly in granite pegmatites [crystalline granite] but can also form in the veins of metamorphic rocks.

The Hirsh Aquamarine

The soothing teal beryl is mined mainly in Brazil, but it is also found in Nigeria, Madagascar, Zambia, Pakistan, Mozambique, the United States, Australia, Minas Gerais and so many other parts of the world.
What ordinary people might buy, give me! :) 

Perhaps it's fair to say the semi-precious gemstone is underappreciated by the masses, although not by royalty. [BTW: precious and semi-precious are arbitrary classifications of gemstones that jewelers agree should be retired.] 

Queen Elizabeth's Brazillian aquamarine brooch is another piece in the set gifted to her in 1953.
Queen Elizabeth II has a gorgeous set of aquamarine jewelry she wore on many occasions. 

The Kock Aquamarine Kokoshnik replica of the personal jewelry of Empress Alexandra, wife of the last Czar of Russia, Nicolas II. 

Likewise, Czarina Alexandra Romanov of Russia (1872 - 1918) loved the stones so much that Nicolas II often gave them to her. The above tiara is believed to have been made in Germany in 1910 for her by jewelers Robert and Louis Kock, yet there are no photographs that survived the revolution of the Empress wearing it. Its aquamarines and diamonds are set in platinum and gold. The set resides in Japan's Albion Art of Institute.

Photo: Geologyin

Teal is a dreamy, tranquil, versatile color and a popular shade. For jewelry lovers who desire big, clear, flawless, affordable gemstones, you really can't go wrong with aquamarine. You'll get more beryl for the money!



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Monday, June 13, 2022

Did You Know Red Emeralds Exist?

Photo: gemstones.com

Although an accurate and characteristically fitting name to describe red beryl, there's a bit of controversy in calling it a red emerald. Emeralds are so associated with the color green that some geological associations are afraid consumers will feel deceived by the term red emerald. Personally, I disagree. The adjective "red" lets you know the beryl is not green.

Photo: Equatoial Imports

Red beryl was discovered in 1904 in the Wah, Wah mountains of Utah by Maynard Bixby, an American mineralogist. The gemstone is very rare and thus far has only been found in Utah and New Mexico. 

Just like it sibling beryl, green emerald, red beryl is a class 3 gemstone, meaning it's very brittle and highly included. Also like green emeralds, oil treatments are acceptable to improve the appearance of a red emerald's inclusions. Oil treatments don't change or damage the gemstone. 


Photos (including the next one on the right) courtesy of Christian Library

All beryls are distinguished by hexagonal crystal systems. In nature, pure beryl is colorless but acquires its color from trace amounts (that is to say, impurities) of additional elements. While chromium and vanadium give emerald its green color, and iron makes aquamarine blue, when manganese produces a deep red color, it's called red beryl or red emeraldOf course, beryls also come in pink, and yellow, but for now, let's discuss red.

Registering 7.5 - 8 on Moh' Hardness Scale, red emeralds come in red-red, purplish-red, or orangy-red. Big stones are especially rare finds. According to the Gemmological Association of Great Britain, a 2-carat red beryl is as rare as a 40-carat diamond. The gem association says, "only one red beryl is mined for every 150,000 diamonds.'' And consider this, the scarlet gem is scarcer on earth than gold.

What I think is super cool ... May babies have another color of birthstone!

Due to the gemstone's rarity and the lack of abundant production, good quality red emeralds can fetch up to $10,000 per carat. Still be aware that like its sibling green emeralds, or diamonds, sapphires, and rubies, there are various degrees of gem-quality stones. Not all red beryl is equal, and clarity, color, and size apply to determine its value. According to gemstone wholesaler Equatorial Imports, red beryl tends to price twice the value of emerald.🟩