All about birthstones - part 1

To those who love gem and jewelry, enjoy this article! :)

Garnet, the birthstone for January, is one of the most versatile stones on the market. It comes in a rainbow of colors, from deep red to tangerine orange to lime green to pale pink, as well as purple, gold and brown. Garnet is found all over the world, including Africa, Australia, Eastern Europe, the Middle East, North America, South America and Southeast Asia. This stone is actually part of a family of gems with mineral and color differences which include rhodolite, malaya, demantoid, grossular, hessonite, spessartite, almandine, mandarin, and combinations of these varieties. Almandine, the most common type, is dark red to brownish red. Pyrope is blood red. Rhodolite, one of the most popular varieties, ranges from pink to purplish red and is mined in Africa, India and Sri Lanka. Malaya, a mixed variety found in Tanzania and Kenya, ranges from orange to gold. Tsavorite is bright yellow green to grass green and is also mined in Tanzania and Kenya. Demantoid is primarily found in Russia. Hessonite and spessartite mostly come in golds, oranges and browns. Mandarin is a bright orange type of spessartite recently found in Namibia. Grossular is available in pinks, greens and yellows.The stone was a favorite of ancient Egyptian jewelry artisans. Noah used a garnet lantern to navigate the Ark through 40 days and nights of torrential rain.


Amethyst: The Color for Kings (February)
Amethyst has long been a favorite gem of kings and queens for its royal purple hues. The gem, the most precious member of the quartz family, exhibits color ranging from pale lilac to deep purple. Amethysts are featured in the British Crown Jewels and were worn by Catherine the Great as well as Egyptian royalty. The finest and most valuable amethysts are very clear, with very deep color (and they sometimes exhibit reddish or rose overtones). n some legends, the stone also represents piety, celibacy and dignity. The stone also is supposed to bring peace of mind to the wearer and prevent fatal poisoning. It also is the recommended gem for couples celebrating their sixth wedding anniversary. The stone is mined in Brazil, Uruguay, Bolivia and Argentina, as well as in Zambia, Namibia and other African nations. Very dark amethyst in small sizes also is mined in Australia. But the ideal for fine quality amethyst was set by a Siberian variety, often called Russian or Uralian amethyst, which is now considered a defunct source. Generally, South American amethyst tends to come in larger sizes than African amethyst. But the African variety has a reputation for having deeper color intensity and is therefore considered more valuable. The African version also is harder to come by than amethyst mined from South America. Most of today's amethyst comes out of Brazil.


Aquamarine: Gem of the Sea
According to legend, aquamarine was the treasure of mermaids and had the power to keep sailors safe at sea. It is the symbol for youth, hope, health and fidelity. It is the birthstone for March and the recommended gem for couples celebrating their 19th wedding anniversary. Aquamarine is found in a range of blue shades, from pale pastel to greenish-blue to deep blue. Deeper colors are unusual in smaller sizes; generally, it takes a larger stone to hold a darker shade. The most prized aquamarines are those displaying a deeper, pure blue, with no green tints. These are rarer and therefore more valuable. But if you prefer those with a greenish hue, you should be able to get them for a bargain price. Like with any gem that is pale, aquamarines should be "eye clean" (no inclusions visible to the naked eye), since internal flaws are more noticeable in a pastel stone. A variety of the mineral beryl, like the emerald, aquamarine is found in many exotic places around the world, including Afghanistan, Angola, Kenya, Madagascar, Mozambique, Nigeria, Pakistan, Sri Lanka, Russia, Zambia and Zimbabwe. But most of the gemstones available in the market today come from Brazil.


Diamonds : The Most Precious of Gems
Diamonds are among the most prized substances on earth. Their incomparable brilliance, elegance, durability and mystery have captivated our imagination for thousands of years. Considering the endless lore and mystique behind this regal stone, it's no wonder that it has come to symbolize the ultimate gift of love and romance. This gem is also the birthstone for April. When shopping for a diamond, keep in mind that the value of a stone is determined by the "4 Cs" of cut, color, clarity and carat weight.

Cut refers to the execution of the diamond's design, the skill with which it was cut, the quality of its polish, and the overall symmetry of the stone. Diamond cuts are broadly graded as Ideal, Excellent, Very Good, Fair or Poor. A well-cut diamond releases the inner brilliance of the stone and projects its maximum amount of fire and sparkle. A poorly cut diamond allows light to leak out the sides or bottom rather than reflecting back to the eye, resulting in a "dull" diamond that may even have some "dead" spots inside.

Color refers to the presence or absence of color in white diamonds. As a rule, the whiter the stone, the greater its value. Even a slight tinge of yellow or brown could have a negative impact on a stone's value. Most diamonds are graded on the GIA color scale that begins with "D" for colorless and continues all the way down to "Z", with the color becoming more visible as you move down the alphabet. Stones in the D-F color ranges are considered the most valuable because they are the rarest.

Clarity refers to the presence of surface or internal flaws within a diamond caused during its formation. External marks are known as blemishes, while internal ones are called inclusions. Diamonds are graded for clarity on a scale ranging from "F" for flawless (no blemishes or inclusions visible under 10x magnification) to "I" for imperfect (inclusions visible to the naked eye), with numerous grades and subgrades in between. The best diamonds, of course, are flawless, but these stones are exceptionally rare and therefore very costly.


Carat weight refers to the size of the stone. The carat is the measure of weight for diamonds. One carat is approximately 200 milligrams, or 100 "points". A stone weighing a half-carat would be a 50 pointer, and so on. In general, larger diamonds are rarer and have a higher value per carat. However, other factors such as cut, color and clarity come into play as well in determining a stone's value. It's entirely possible for a smaller stone of exceptional cut, color and clarity to be worth more than a larger stone of only average quality in these areas.

And diamonds are the recommended gift for couples celebrating their 10th, 60th and 75th wedding anniversaries.