The word diamond is derived from the Greek word “adamas,” which means invincible or indestructible. Diamonds are the earth’s hardest natural substance. The only thing that can scratch a diamond is another diamond!
Diamonds are the only gems made of one element. They are made of pure carbon.
Diamonds are found in every color of the rainbow. The rarest natural diamond colors are blue, green, orange, and red.
The word diamond comes from the Greek word “adamas.” It means invincible or indestructible.
Many ancient cultures had beliefs about diamonds. Some believed diamonds gave their wearers courage and strength in battle, and some kings wore diamonds on their armor as they rode into battle. In the first century AD, the Roman naturalist Pliny is quoted as having said, “Diamond is the most valuable, not only of precious stones, but of all things in this world.”
In the Middle Ages, many believed diamonds had healing properties.
In 2004, scientists discovered a planet they believe is at least one-third diamond! It was named “55 Cancri e.”
Lab diamonds have the same physical, chemical, and optical properties as mined diamonds. They are sustainable diamonds that have minimal environmental impact and require no new mining. Lab diamonds are created in a lab using advanced technologies that simulate the formation of a natural diamond beneath the earth’s crust.
Diamond cut is the most important criteria of grading. According to the Spark Jewels Diamond manufacturers , the brilliance of a diamond depends on how good the cut is. Furthermore, lab grown Fancy Cut Diamonds are defined and categorized in different grades to help the customers in determining the cut of a particular diamond. The grades are:
'Excellent' cut diamonds reflects the maximum amount of brilliance and fire. It reflects nearly all light that enters the diamond, creating exceptional sparkle and life.
'Very Good' cut diamond properly reflects most of the light that enters the diamond, producing superior fire and brilliance. Under normal lighting conditions, an excellent cut is reflected in Spark Jewels Diamonds at wholesale price.
Reflects a majority of the light that enters the diamond, for an above average appearance. An excellent value compared to higher cut grades.
Allows much of the light entering the diamond to escape from the sides or bottom, reducing perceived fire and brilliance. More acceptable in diamonds weighing less than 0.75 carats, where differences in sparkle are more difficult to perceive. The diamond may appear noticeably dull and lifeless, even to an untrained eye.
The clarity of the diamond is rated by the quantity and position of 'inclusions' or flaws, which bothers the light that passes through the diamond. The rating of the diamond is done in the following categories:
When most industry experts discuss the color of diamonds, they are generally referring to lack of transparency or color of the diamond. CVD Diamond manufacturers create diamonds that are made of 100% pure carbon without impurities therefore they are completely colorless. However, almost all diamonds contain some extent of color impurity caused by traces of nitrogen, boron, hydrogen or other elements. Most diamonds suffer only traces of nitrogen, which produces a pale yellow or brownish color.
To grade color of the diamonds, they should be free, because if the diamond is in the metal, the metal will affect the color we perceive. For example, a slightly yellow diamond might glitter more if categorized under yellow gold while it looks less yellow if categorized under white gold or platinum.
Diamonds are placed table-down, pavilion up, and magnified under 10X loup.
Lettering system from D to Z is used to determine the amount of color in each diamond with D awarded only to rarely complete colorless diamonds.
Grades of Diamond color: Colorless diamonds and diamonds that are yellow or yellowish brown are grouped into the following categories. These varieties do not apply to fancy colored diamonds - they have their own grades.
|D E F
|G H I J
|K L M
|N to R
|S to Z
It's easier to understand this C of all "4Cs". A unit of weight for lab grown diamonds and other gemstones is carat. Weight of a diamond is directly related to the size, and although incorrect, these terms are sometimes used interchangeably. It is a term that is derived from the use of an ancient 'Carob' seed in measuring small weights. Table of common weight-related terms are given below.
One Carat is 0.200 grams (There are 5 carats in 1 gram and 142 carats to 1 oz.)
A carat is divided into 100 parts each called a point. So,