The birthstones for the 12 months of the year

Every month has its gemstone. Birthstones are symbolic, spiritual and healing gems that will bring prosperity, health, protection and luck to all of us. What's yours?

Twelve birthstones for the twelve months of the year. Every one of us has a unique gemstone. Our birth month is associated with a gemstone, or more.

The story of birthstones dates back to the sacred breastplate worn by Aaron - brother of Moses - the first High Priest of the Israelites. The breastplate had 12 jewels distributed by four rows.

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The official list of US State gemstones, minerals, rocks and stones

The United States of America has a wide variety of ore and mineral deposits, and nearly all 50 States have named a stone, a gem or rock that is regionally common and abundant.

There are more than 5,000 minerals on planet Earth, according to the International Mineralogical Association (IMA). Not all can be precious; not all are considered to be rare.

The USA is not known for its large gemstone mining industry. Actually, there are less than 1500 workers searching for precious minerals nationwide. Roughly 99.9 percent of all gems bought in the US come from foreign markets.

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The ultimate official ring size chart

The perfect ring is the one that fits comfortably on your finger. The international ring size conversion chart allows you to determine and compare ring parameters across six different regions of the world.

If you're an American citizen, and you're traveling abroad, you can often get confused by the multiple standards available in contemporary jewelry. Rings sizes are a frequent issue.

There are two fundamental variables when it comes to choosing the perfect ring for your fingers - the inside circumference, and the inside diameter. With six different scales (British & Australian, US & Canada, French & Russian, German, Japanese, and Swiss), confusion reigns.

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World's biggest blue star sapphire discovered in Sri Lanka

The precious gemstone, named The Star of Adam, weighs an exceptional 1404.49 carats.

According to the BBC, the amazing new blue star sapphire was evaluated by gemologists in Colombo, at least, at 100$ million, but its owner estimates that it could sell for over $175 million.

The finding was made in Ratnapura, the "City of Gems," in southern Sri Lanka, last August. "The moment I saw it, I decided to buy. When the stone was brought to me, I suspected that it might be the world's largest blue star sapphire. So I took a risk and bought it," the owner of the gemstone, who refused to be identified, explained to the BBC.

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The jewelry schools and gemstone courses of the world

The best jewelry craftsmen and craftswoman learnt the science of jewels and gems through books, experience and by attending the finest educational programs.

There are plenty of courses and programs for both jewelry enthusiasts and professional goldsmiths.

Jewelry owners have often felt they have something unique in hands. Diamonds, emeralds, sapphires and all other gemstones are a gift of Nature and take thousands of years to form and to get to us.

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