CARAT WEIGHT
Carat weight refers to the weight of a diamond, and it is often used as a measure of a diamond’s size. This video will cover why diamonds that weigh the same may not look the same, the origin of the use of the “carat” to measure gemstone weight, and why carat one of the 4 Cs.
Carat weight is important because it can have a significant impact on a diamond’s value and overall appearance. Generally speaking, larger diamonds are more valuable than smaller diamonds, and they also tend to be more impressive in terms of their appearance. However, carat weight is not the only factor that determines a diamond’s value or appearance, as factors such as cut, color, and clarity can also play important roles. Ultimately, the decision to buy a diamond is a personal one, and carat weight is one of the many factors to consider when making a purchase.
Learn more about carat weight in this short video from GSI.
CLARITY
The clarity of a diamond refers to the presence or absence of internal and external characteristics in the stone. These characteristics, also known as inclusions and blemishes, can affect a diamond’s overall visual appearance and value. The higher the clarity grade of a diamond, the fewer visible inclusions and blemishes it has. Gemologists use a microscope and a 10x loupe to determine the clarity grade of a diamond.
A diamond’s clarity characteristics can also tell a story about how the diamond was formed.
In this video, you’ll learn how diamonds are graded for color, and the different scales and ranges.
CUT
Cut is one of the four Cs used to determine the quality of a diamond and is the most complex because of all the variables that go into its evaluation.
Of the 4 Cs, cut is the most important because it determines the diamond’s beauty. The other C’s are determined by nature, but cut is determined by human artistry.
In this video, you’ll learn about diamond finish. The finish of a diamond is one aspect of the diamond’s cut grade and refers to the quality of the diamond’s surface and the precision of its cut, including factors such as symmetry, polish, and facet arrangement. A well-finished diamond will have smooth, symmetrical surfaces and precisely aligned facets, which can affect its overall beauty and sparkle.
Learn more about diamond cut in this short video from GSI.
COLOR
The color grade of a diamond refers to the degree to which it exhibits color, ranging from colorless to light yellow or brown. There are also fancy colored diamonds, which are diamonds that exhibit a color other than the typical colorless to light yellow or brown range, and can come in a wide range of hues including pink, blue, yellow, green, purple, and red.
The color grade of a diamond is an important factor to consider when buying a diamond because it affects its overall appearance and value.
In this video, you’ll learn how diamonds are graded for color, and the different scales and ranges.
Cut is one of the four Cs used to determine the quality of a diamond and is the most complex because of all the variables that go into its evaluation.
Light performance refers to the way a diamond interacts with light, including how much light is reflected and how it is dispersed into flashes of brilliance and fire. Factors that affect a diamond’s light performance include its proportions, weight ratio, and how all the angles of facets are aligned to give the diamond maximum brilliance, fire, and scintillation.
In this video, you’ll learn more about diamond light performance, and what makes a bright, sparkly diamond!
Laboratory-grown diamonds are diamonds created in a laboratory. They have the same physical and chemical properties as natural diamonds and are typically less expensive than their natural counterparts.
Laboratory-grown diamonds are a feat of science and human ingenuity, with a fascinating history.
In this video, you will learn more about how laboratory-grown diamonds are grown, their history, and their uses from GSI, the industry leader in the detection and differentiation of laboratory-grown diamonds.