At Edaya, we know that not everyone can be a gemologist, yet no one wants to purchase something extravagant like a diamond without understanding the many different variables of diamonds. First you need to chose what shape diamond you actually want. Once you have decided the shape, you still need to choose the size, the color and the clarity. In order to help you make your decisions as easy as possible, we have a simple yet thorough explanation of all the different variables right here so you don't need to look anywhere else just to learn about what is possibly your biggest purchase of the year.


Cut Diamond

Basic Parts

The flat facet on the top of the diamond. It is the largest facet on a cut diamond.

The upper part of the diamond above the girdle. Consists of a large flat area on top called a table, and several facets below it.


The outer edge or the widest part of the diamond forming a band around the stone.


The bottom part of the Diamond, below the girdle.


The smooth, flat faces on the surface of a diamond. They allow light to both enter a diamond and reflect off its surface at different angles, creating the wonderful play of color and light for which diamonds are famous. The table below shows all the facets on a round brilliant cut diamond. A round brilliant has 58 facets (or 57 if there is no culet).


Refers to variations in a diamond's symmetry. The small variations can include misalignment of facets or facets that fail to point correctly to the girdle. Symmetry is regarded as an indicator of the quality of as diamond's cut; it is graded as either Ideal, Excellent, Very Good, Good, Fair or Poor.

diamond parts pic

A tiny flat facet that diamond cutters sometimes add at the bottom of a diamond's pavilion. Its purpose is to protect the tip of the pavilion from being chipped or damaged. Once a diamond is set in jewelry, though, the setting itself generally provides the pavilion with sufficient protection from impact or wear. Large or extremely large culets were common in diamonds cut in the early part of this century, such as the Old European or Old Mine Cut. However, such large culets are rarely seen today. Most modern shapes have either no culet at all, or a small or very small culet.


The height of a diamond from the culet to the table. The depth is measured in millimeters.

Crown angle:

The angle at which a diamond's bezel facets intersect the girdle plane. This gentle slope of the facets that surround the table is what helps to create the dispersion, or fire, in a diamond. White light entering at the different angles in broken up into its spectral hues, creating a beautiful play of color inside the diamond. The crown angle also helps to enhance the brilliance of a diamond.

Table Percentage:

The value which represents how the diameter of the table facet compares to the diameter of the entire diamond. So, a diamond with a 60% table has a table which is 60% as wide as the diamond's outline. For a round diamond, gemologists calculate table percentage by dividing the diameter of the table, which is measured in millimeters (this millimeter measurement does not appear on diamond grading reports) by the average girdle diameter. For a fancy shape diamond, table percentage is calculated by dividing the width of the table, at the widest part of the diamond, by the millimeter width of the entire stone.


An effect that is seen in some gem-quality diamonds when they are exposed to long-wave ultraviolet light (such as the lighting frequently seen in night clubs). Under most lighting conditions, this fluorescence is not detectable to the eye. However, if a diamond is naturally fluorescent, it will emit a soft colored glow when held under an ultraviolet lamp or "black light." Fluorescence is not dangerous to the diamond or to the wearer; it is a unique and fascinating quality that occurs naturally in a number of gems and minerals. Most commonly diamonds fluoresce blue, but can also fluoresce yellow or white depending on which trace elements are found in the matrix of the diamond crystal. Fluorescence is described as none (or inert), faint, negligible, medium, strong, and very strong.

Fluorescence in diamonds can have both favorable and undesirable effects. For example, diamonds in the color range of I to N with medium to strong blue fluorescence can appear more colorless, which is an obvious advantage. The blue acts to mask or offset the very faint body color of these diamonds. On the other hand, diamonds with very strong fluorescence can exhibit an oily or milky appearance, even under incandescent lighting. However, according to a GIA study, the average observer could not detect any difference in color or transparency when viewing diamonds with fluorescence.

Cleaning & Servicing Your Diamond

Diamonds are one of the hardest substances on earth. That said, diamonds are not indestructible. They can chip and break and are especially vulnerable at the girdle.

Having diamonds set in a relatively protective setting, can help keep them safe. When wearing your diamond, you should be conscious of it on your finger, removing it when doing any type of activity that might expose it to a rough substance or a hard blow. For example, this might include gardening, doing the dishes, intense exercise, etc.

During the course of ordinary wear, a diamond is exposed to dirt, dust, perspiration, makeup, and natural skin oils, as well as household chemicals, like chlorine and hairspray. Over time, these materials build up on a diamond, dulling its natural beauty. Luckily, cleaning a diamond is easy and requires very little time. We recommend having your diamond professionally cleaned and inspected once every six months or if it undergoes some form of trauma, such as being dropped or hit against a hard surface. These inspections help prevent the loss of your diamond solitaire in the event your ring has been inadvertently damaged. Edaya Jewelry provides this service for our customers.

Please contact us at for more details.

What Makes A Diamond Sparkle?

Brightness & Contrast

Brilliance is an essential attribute of a beautiful diamond and has 2 components; brightness and contrast. Bright diamonds return lots of light from the surroundings back up through the crown to a 'face up' observer. If light from above leaks out the back of a diamond, naturally it has less brightness. But light that enters and leaves in the face up direction is wasted because your head blocks the lights. Diamonds that are too deep or very shallow do this -they have areas that act like a mirror back to the viewer; they return less light and so they have less brightness.

Fire or dispersed light appears as flashes of rainbow colors. You see more fire in darker environments like restaurants that have just a few point light sources or just a flickering candle. Fire is also a result of a diamond's symmetry and proportions. There are several factors that greatly influence the amount of fire a diamond produces such as star facet length, lower girdle facet length, pavilion angle, facet junctions, the angle at which light enters the diamond, and the angle of the light rays as they exit the diamond.

Diamond experts have known for a long time that steep crown angles and small tables (like 'old cut' diamonds) produce more fire. But this combination also produces less light return. Less light return makes it easier to see fiery flashes that might otherwise be swamped by bright white sparkles; this is one reason is why old cut diamonds and some fancy cuts appear to have a lot of fire.

is the intense sparkles in a diamond as it moves. Black and white sparkles of scintillation show well in flood lit or office lighting environments where fire can be totally absent.
Under pin point or spot lights fire also adds to scintillation. Ideally a diamond has many pleasing flashes spread across the surface of the stone, with few dull dead patches.

Polish is graded the same way as symmetry: Ideal, Excellent, Very Good, Good, Fair or Poor on a GIA report. Poorly polished facets may reduce the intensity of light reflected from, or refracted into and out of, a diamond. Labs assess polish by examining the diamond, facet by facet, with reflected light under a microscope; you or I may not see any difference.

symmetry and proportions

How Symmetry & Proportions
Maximize Light Return

Every facet in an Ideal Cut diamond must be placed at precise angles and contain precise proportions. This ensures an Ideal balance between maximum brilliance and dispersion of light. Any discrepancy from these proportions will disrupt the even distribution and dispersion of light within the stone, resulting in a loss of sparkle.

A well-proportioned pavilion is especially important to a diamond's brilliance. Brilliance is the brightness created by the combination of all the white light reflections from the surface and the inside of a polished diamond. If the pavilion is too deep or too shallow, it causes light to strike outside the critical angle—the largest angle at which light rays inside the diamond can escape—causing the light to exit through the pavilion rather than reflecting back to the eye as brilliance.

The 4 C's Of Diamond Quality

In the diamond industry there is a guide called the 4C’s. The four C’s are Cut, Clarity, Color, and Carat.
Each of these categories is incredibly important in determining the quality of the diamond you choose. 

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clarity pic


To many, the diamond cut is one of the most important of the 4C’s, it’s what provides the shine of the diamond, what gives it “life.” The cut gives the diamond the ability to transmit light and sparkle. The diamond’s cut is the most complex to analyze and is explained in the proportions area of the diamond’s certificate.


The clarity is of course extremely important to the beauty of the diamond. Almost every diamond has natural imperfections often referred to as inclusions. The fewer inclusions a diamond has, the more expensive the price. Edaya Jewelry chose to make this.

color pic
carat pic


The color scale for diamonds is a subject that a person must be an expert in to determine the different colors given to any diamond. The grading scale starts at D which is colorless and goes all the way to Fancy yellow (after Z color). At Edaya, we offer F or H color, or in other words colorless or near colorless to make sure that every diamond will be full of life and have a great look to it.


Diamond carat (ct.) weight is the measurement of how much a diamond weighs. A metric carat is defined as 200 milligrams. Each Carat can be broken down into 100 parts. Each point representing a part. Carat size can give a general idea of the size in length(mm) of the diamond as shown below. Although two diamonds may be equal in carat size, they can be priced differently based on the other variables in diamonds. All else being equal, diamond price increases with diamond carat weight, because bigger diamonds are more rare and therefore more valuable.

Enhancing Your Diamond

What is an “enhanced” diamond?

Diamond enhancements are specific treatments performed on 100% Natural diamonds which have been designed to improve the visual gemological characteristics of a diamond in one or more ways.

Enhanced diamonds are 100% real diamonds. They are mined in the same diamond mines as every other diamond. The Diamonds at Edaya Jewelry are sent to a Gemological laboratory and are graded on the strictest of scales to ensure the highest quality of our diamonds.

Almost all diamonds have imperfections. When shopping for a diamond, a person generally is working in a budget. Your average Jeweler will offer a number of options: spend above your budget and get the diamond that you want in size, color and clarity, or compromise the clarity of the diamond and keep the size you had in mind that fits your budget, or finally a 3rd option, go with a smaller diamond than you had in mind but that has the clarity and color you want. At Edaya Jewelry we offer the best option: Get the diamond you want with the clarity and color you want and keep it in the budget! By offering clarity-enhanced diamonds we are able to best provide you with the exact diamond you have been searching for.

Understanding the process:

When a diamond is mined, generally it will have a number of imperfections. Once the diamond has been enhanced, the clarity grade will be higher than before the process and therefore more valuable. The process does not change the carat weight, color or cut of the diamond. The clarity however will have been upgraded, hence the value added to the diamond.

The process: Diamond clarity enhancement may include laser drilling or fracture filling. The filling would be a microscopic amount of a proprietary substance into the inclusion, making it completely invisible to the naked eye. The material used has the same optical properties as the diamond, so that light is able to pass through the inclusion. The amount of material used is so extraordinarily small that no one has been able to extract the substance and copy the inventor of the enhancement process.

The Color and Weight: The diamonds natural color or weight is not affected at all by the enhancement process. The diamond is still a natural diamond, just better looking. The amount of filling in the diamond is so miniscule that the Gemological Institute of America (The GIA), the best-known diamond laboratory in the world confirmed that this process does not affect the weight of the diamond at all.

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