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Cut is a measure of how a diamond’s facets interact with light. A diamond’s cut grade is a measure of a diamond’s light performance.
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Diamond Cut Cut is a measure of how a diamond’s facets interact with light. A diamond’s cut grade is a measure of a diamond’s light performance. A well cut diamond offers maximum light return out of the diamond’s table surface area. In a shallow cut diamond, light leaks out of the bottom. A deep cut diamond allows the light to escape from the sides.
Proportions refers to: Depth- The height of a gemstone measured from the culet to the table. Table- Located at the top of the diamond, the table is the largest facet of a diamond. Girdle- Range of girdle thickness. Culet- Appearance, or lack thereof, of the culet facet. This is the pointy area on the bottom of a diamond.
Polish: The overall smoothness of the diamond’s surface. It varies from poor, fair, good, very good, and excellent. • Symmetry: Measuring the alignment and placement of the diamond’s facets in relation to one another as well as the evenness of the outline as compared to shape. It varies from poor, fair, good, very good, and excellent.
The less color a diamond has, the higher the color grade. Generally, the whiter it is the more valuable and sought after the diamond. The slightest hint of color can make a dramatic difference in the value of a diamond. Color is generally the most important characteristic after cut.
The human eye tends to detect a diamond’s light performance, or sparkle, first and then its color (yellow versus white). The color scale starts from the letter D (the whitest) and going all the way to Z (the most yellow).
At San Diego Jewelry Brokers, you will find only the finest diamonds with color graded D-K. • Colorless Diamonds = D – E – F color grades • Near-Colorless Diamonds = G – H – I – J color grades • Faint Diamonds = K – L – M color grades
Very-Light Diamonds = N – P – O – Q – R color grades • Light Diamonds = S – T – U – V – W – X – Y – Z color grades • The D-to-Z color scale is the industry standard for color-grading diamonds. Each letter represents a range of color based on the diamond’s tone and saturation.
Diamond Clarity Clarity evaluates the number, size, and position of inclusions and blemishes inside and outside of a diamond. All diamonds except for Flawless have inclusions. In fact, almost all diamonds have imperfections or what is referred to as inclusions. Many of these imperfections or inclusions are microscopic and in most cases are not noticeable by the naked eye. Eye-clean diamonds are the most popular diamond clarity grades amongst consumers. An Eye-Clean diamond is generally any diamond that is Slight Inclusion (SI) level or higher.
Diamonds that have the smallest and slightest inclusions receive the highest clarity grades. • FL – IF stands for Flawless – Internally Flawless: No internal or external imperfections. Internally Flawless: No internal imperfections. Extremely rare. • VVS1 – VVS2 stands for Very – Very Slightly Included: Very difficult to see imperfections under 10x magnification. An excellent quality diamond.
VS1 – VS2 stands for Very Slightly Included: Imperfections are not typically visible to the unaided eye. Less expensive than the VVS1 or VVS2 grades. • SI1 – SI2 stands for Slightly Included: Imperfections are visible under 10x magnification, and most often not visible to an untrained eye. A great diamond value.
I1 – I2 – I3 stands for Included: This grade of diamonds will have minor inclusions that may be visible to the unaided eye. • The most popular clarity of diamonds is “eye-clean” diamonds, which are SI1-SI2 in clarity as they have no imperfections visible to the untrained-eye through when looked at facing up.
Diamond weights are measured in metric carats or “ct”. A carat is divided into one hundred points; a single point is one hundredth of a carat. A one carat diamond is 100 points. Diamonds are weighed to a thousandth (0.001) of a carat and always rounded to the nearest point. A 1.05 carat diamond, for example, is described by most jewelry professionals as “one point oh five carats,” or “one oh five.” A fraction of a carat weight difference can mean huge difference in price of a diamond. A 1.00 carat diamond, for example, has more value than a 0.99 carat of a comparable diamond quality factors.
People often confuse the words “Carat” and “Karat” as they are pronounced the same. Karat is a unit of measure used to describe the level of purity of gold there is in an alloy.
Round Brilliant Cut Diamonds The round brilliant cut diamond is the most popular diamond shape, because if it has been cut properly it will tend to have more sparkle when observed by a human eye. A round diamond will give you a nice balance between its clarity, color, and cut while still producing a top notch fire and brilliance.
Princess Cut Diamonds Princess cut is the most popular non-round shape. Princess cuts are square in shape and have pointed corners. They offer a unique look and a brilliance that will blow you away. When purchasing a princess cut make sure the length to width ratio is close to each other if going for a perfect square look.
Emerald cut offers rectangular facets, which create a unique optical appearance. They often have large see-through tables thus they highlight the clarity of a diamond more than other diamond shapes.
Asscher Cut Diamonds Asschercuts are nearly identical to the emerald-cut except theY tend to be square in look and have cut corners. They offer square facets that create a unique vintage look while staying classy and elegant.
Marquise Cut Diamonds The shape of a marquise can maximize carat weight of a diamond, giving the diamond a larger weight appearance. Most marquise shapes are set in diamond rings north to south, while west to east looks just as beautiful.
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