Diamonds

Astrologically Diamond is the birthstone of April. It is also the gemstone for the 10th and 60th anniversary. Diamond is supposed to strengthen the planet Venus to increase luxury and enjoyment in your life. If you are a Virgo then according to Vedic astrology Diamond is the right gemstone for you. The glittering color, the four perfect cleavage directions and its endurability has made it the most popular gemstone.

For the interest of Chemistry student Diamond is nothing but a carbon. It is a polymorph of Carbon just like Graphite. Its chemical formula is “C” and only “C”. It’s a native element and belongs to the sub-class Non-metallic. Diamonds are available in wide variety of colors like Blue, Pink, White, Yellow. The diamonds processing industry values the brown diamond much more, which comes in three varieties called Champagne, Cognac and Coffee.

For the Physics students, its hardness is perfect 10 out of 10 in mohs hardness scale. Diamond is the hardest substance, gifted by nature. Just for the sake of interest, Diamond is four times harder than Sapphire or Ruby. Diamonds can scratch any other mineral and the myth, “Diamonds can only cut a diamond”, is true. The Clarity of Diamond is transparent. The specific Gravity of Diamond is 3.5, which is well above the average. Diamond conducts heat the best. For comparison purpose, its five times better than Silver. At this scenario of this very best, the Melting point of Diamond is 3820 Kelvin and the Lattice density is also the highest. Definitely Diamonds is empowered with many excellent properties to become the first choice, but again the myth of its indestructible or eternity has been proved to be a foolish notion.

Diamonds are available all over the world. Mostly it is available in Australia, Arkansas, Africa, Botswana, Brazil, Canada, Congo, and Russia etc. A large mine in South Africa has started its operation just five years back.

Diamonds have been used in treatment of mankind for ages. Medical sciences have been able to find its remedial utilities in several accidental and usual disorders due to injuries, fracturing of bones etc. It is supposed to be highly effective in several brain diseases and nervous system disorders. Diamonds even helps to control the hormone sequence of the human body.

How Diamonds Made

Image via Wikipedia

Diamonds form between 75-120 miles below the earth's surface. According to geologists the first delivery of diamonds was somewhere around 2.5 billion years ago and the most recent was 45 million years ago. The carbon that makes diamonds comes from the melting of pre-existing rocks in the Earth's upper mantle. There is an abundance of carbon atoms in the mantle. Temperature changes in the upper mantle forces the carbon atoms to go deeper where it melts and finally becomes new rock, when the temperature reduces. If other conditions like pressure and chemistry is right then the carbon atoms in the melting crystal rock bond to build diamond crystals.

There is no guarantee that these carbon atoms will turn into diamonds. If the temperature rises or the pressure drops then the diamond crystals may melt partially or totally dissolve. Even if they do form, it takes thousand of years for those diamonds to come anywhere near the surface.

It takes millions of years to make a diamond. When you own a diamond, you own something which is a legend in the making. It has not been made in a factory just the other day. A diamond comes from the bosom of the earth. More interestingly not all the diamonds mined are made into jewelry. Only one fourth of the diamonds that are mined are made into jewelry. Every 100 tons of mud produces one carat of a diamond. And this one carat is not one stone! It could be anything from 0.005 ct to 1 ct. because much of the original stone is cut away in the process of cutting, shaping and polishing the diamond.

Diamonds come in different rough shapes. The next time you look at your diamond, think about the amount of time, energy and resources have gone into making that one.

Diamond Shapes

Available Diamond Shapes

If you thought all diamond shapes were the same, you may be surprised at the abundant number of diamond shapes that are available. Most jewelers offer at least nine of the most common gemstone shapes, including:

Diamond Shapes

Two diamonds that are the same shape will appear to look slightly different depending on the siz and weight of the diamond, as well as the type of setting that the stone is placed in. The same ring worn on two different hands can also look quite different, based on the size of the hands.

Difference Between Diamond Shapes and Diamond Cut

Many people mistakenly use the terms “diamond shapes” and “diamond cuts” interchangeably, but there is a difference between them. The cut of a diamond refers to how the artisan maximizes the features of the gemstone by creating angles and details, making the light go into the diamond and bounce back in the most brilliant way possible. The quality of a diamond's cut contributes greatly to the overall value of the gemstone, where as the shape of a diamond does not increase or decrease a diamond's value. When discussing diamond shapes, you are referring to the actual geometric shape of the diamond, whether it is round or oval, emerald or heart shaped, for example.

Choosing Diamond Shapes

With all the possibilities of diamond shapes, how do you go about choosing one? If you are buying yourself a diamond, it's just a matter of looking at all the different varieties and finding one that is most pleasing to your eyes, and the ones that look best when you put them on your finger, or wear in your necklace.

When choosing a diamond shape for someone else, it becomes a bit more difficult. For an engagement ring, many women prefer the traditional round shaped diamond, while others may enjoy having something more unique. A young woman or one who is considered a hopeless romantic may prefer to have a heart shaped diamond.

Other considerations for selecting diamond shapes for rings should be based on the size of a woman's hand. If she has long, slender fingers, can elegantly wear a pear shaped diamond, marquis, or oval shape. Place the same shaped diamond rings on a woman with shorter, wider fingers, and it will cover up too much of the finger and look bulky, and perhaps even awkward. Small hands typically look best with round shaped or princess shaped diamonds.

Most Popular Diamond Shape for Engagement Rings

Even though there is a wide variety of diamond shapes available, the most commonly purchased diamond shape for engagement rings is the round diamond. Round diamonds are considered the “classic engagement ring”, and the stones are often set in yellow gold or platinum. In fact, any diamond shape other than round is considered to be a “fancy” shape, since the round diamond is so popular.

Diamond Cut

Our love of diamonds and admiration of their fire and brilliance has given rise to many different cuts of diamonds. While we still see some of the earliest styles of diamond cuts – such as the round and emerald-cut, there are many more cuts today, some of them patented by their designers and costing hundreds of thousands of dollars.

The most popular cut for a diamond ring today is still the round, brilliant cut. It was developed in the 17th century in Venice. It is still preferred when the raw crystal is in an octahedron formation. Even though as much as 50% of the stone is cut away in the process, often two stones can be carved from an octahedron. More unusually-shaped stones are used for fancy cuts, such as a marquise, pear or heart shaped diamond. The earliest brilliants had 17 facets on the top of the stone and were called double-cut. This was soon improved with stones cut with 33 facets and were called triple-cut brilliants.

Brilliant Round Cut

In the 19th century, with the development of better gem-cutting tools, more innovations in diamond cutting styles were developed. In 1919, Marcel Tolkowsky combined the art of cutting with the science of light and refraction and published his book, Diamond Design. These relatively recent geometric calculations were the forerunner of much of diamond cutting work today and led to other, more precise mathematical models engineered to enhance the fire and brilliance of diamonds.

There are now cuts such as the princess cut, trillions, ovals, pear and heart-shaped. Some innovative cutters have even fashioned star or butterfly-shaped diamonds! One patented cut, the Ashoka diamond, is an oblong cut with rounded, brilliant ends, and requires a stone 3 carats or larger. It’s an exceptionally beautiful (and pricey!) diamond shape. Tiffany has also patented a cut of diamond called the Lucida cut. It’s the lucky bride whose fiancé gives her one of these highly coveted stones!

Colored Diamonds

Fancy colored diamonds are all the rage these days. Gemologists have developed new ways to create versions that are affordable for the average person - by treating less desirable diamonds. These less desirable diamonds are treated with irradiation followed by intense heat. This turns brown and yellowish diamonds into beautifully colored diamonds that you can afford. This produces stunning greens, blues, yellows, reds, purples and other colors. These colors are considered permanent, but there is a possibility they could change during repairs if a high heat is used.

Treatments like irradiation make it possible for more people to own these vividly colored diamonds. Most natural colored diamonds are rare and also extremely expensive. When shopping for colored diamonds you need to assume that any affordable fancy color diamond has been treated. Ask about the stones origin and request to view a lab certificate to verify authenticity.

Synthetic colored diamonds are another option if owning a colored diamond is something you desire but cannot quite afford. They are real diamonds, but they are created in a lab.

Natural fancy color diamonds get their coloring from different trace elements present in the stones, such as nitrogen, which produces a yellow diamond. Diamonds can be colored by exposure to radiation during its creation. An example of a diamond affected by radiation is a Green diamond. 


Another way that a natural colored diamond gets color is by its inclusions. Regarded as flaws and undesirable in a colorless diamond, inclusions give unique tones and brilliant flashes of color in a fancy color diamond. Remember that Natural fancy colored diamonds are very expensive, any colored diamond labeled to be sold as natural should be accompanied by a certificate from a respected grading lab. 


A "fancy" diamond is a natural diamond that has color. These colors vary from red, green, purple, violet, orange, blue and pink – and most shades between. Fancy color shades vary from faint to intense.

The most famous diamonds in the world are Color diamonds. The Tiffany Diamond, which is yellow and the Hope Diamond which is blue are colored diamonds. Color diamonds have an amazing financial track record. The value has never decreased on wholesale level in more than 30 years. Blue and pink diamonds have doubled every 5 years of a strong economy. In the 1970’s  you could have bought a very high quality blue diamond for about 50K and today the very same stone would be worth between 2 and 3 million.

Diamonds Durability

Diamonds are among the hardest substances on earth, in fact they use diamonds and diamond dust to cut diamonds. Other gemstones are hard as well, but not nearly as hard as a diamond. Diamonds and other gemstones are measured by the Mohs scale. It runs from 10 (hardest) down to 1 (softest). It is some what arbitrary and not linear. The range from 9 to 10 is much greater than 8 to 9.Harder minerals of course tend to be more durable and will not scratch easily. They’re good choices for jewelry because of their ability to withstand changes in elements or the arbitrary scratch or knock. Talc, with a Mohs hardness of 1, is the softest mineral and can be scratched with a fingernail.

Image via WikipediaQuartz is the most common gem mineral (citrine and amethyst) and ranges at 7 and above. Rubies and sapphires are nearly as hard as diamonds, with a scale of 9 on the Moh’s scale. People mistakenly think diamonds are indestructible and this is not true! Pliny the Elder in his Natural History stated that “these stones are tested upon the anvil, and will resist the blow to such an extent as to make the iron rebound and the very anvil split asunder.” If you tried that, however, you would more likely shatter the diamond, rather than the anvil! Many diamonds are cut to prevent accidental nicks, scratches and breaks. Except for the Princess cut, which is a square-cut diamond with pronounced corners, most corners on angular diamonds are rounded. A protruding point of a square or rectangular diamond could inadvertently be knocked against a surface and chip or scratch.

Your diamond should be protected in a soft, velvet-lined case if you’re not wearing it. Have the setting checked periodically and have the stone examined by a professional. Your diamond is not only an investment in money, but an investment in yourself or your relationship and is worth the small amount of extra care it takes to preserve it forever!