Diamond Guide

Why buy your diamond from D&D Jewelry rather than another online store

• Many diamonds purchased from online stores are certified in laboratories where diamond grading certificates are held at a lower standard compared to reputable laboratories such as GIA.

• Searching online for say, a 2.00 carat round shaped genuine untreated white diamond with clarity VS1 and color F, reveals a roughly $15,000 span between the highest and lowest price. This is a significant price range. Remember that all diamonds are unique. A certificate will not tell you how much it sparkles! So, when you read a diamond report, that report does not reflect a lot of what we as professional jewelers are trained to look for! The whole story of the diamond can only be told not only by reading its grading report from a reputable laboratory, but also by having a trained professional, such as our gemologists examine the stone.

• When making a diamond purchase online, it is highly likely that someone else has also purchased the exact same stone with the exact same certificate (if the stone comes with a certificate))! Naturally, the chances of getting the exactthe most appealing shape same stone are rather slim.

• A jeweler would never buy a diamond without seeing it, why should you?

• At D&D Jewelry, it is our job to first understand your desires and then guide you to the diamond of your liking.

• We stand by our diamonds, jewelry, and expertise, providing on-site service, unlike other online retailers.

• We are a second-generation family-owned & operated jewelry store established in 1985. With so many variables involved when purchasing a diamond (such as the 4Cs, transparency, fluorescence, treatment, budget, etc.), we will help you every step of the way, guiding you in the direction that leads to the diamond that you love that meets your budget without making any sacrifices.

Take a moment to learn more about the "Anatomy of a Diamond" and its "4Cs", and find out how the 4Cs play an important role in making your diamond jewelry unique.

History of 4Cs

Anatomy of a Diamond


Choose the shape that is most appealing. Your personal preference should play the greatest role in your decision. If you like more than one diamond shape, pick your first choice; the one that you belie,ve looks best on your hand and most importantly the one that you like the most.

Diamond Shapes


The cut of a diamond affects its proportions & the position of its facets and subsequently the degree of its brilliance or sparkle. A diamond's cut affects how the stone captures light and reflects it to the eye. For optimal light performance, you will want a diamond that is cut neither too shallow nor too deep. When a diamond is cut with the proper proportions, light rays entering the stone from all angles are maximized to return through the top, aiming for your eye.

Diamond Cuts


When looking at diamonds with your naked eye in a jewelry store, the stones may all appear colorless (depending on the store's lightings or what kind of light is shining on the stone - the best light to judge the color of a loose diamond is the natural sunlight). Now, if you look at a diamond through a magnifying glass, you may notice slight tints of yellow, gray or brown. The more colorless a diamond, the pricer -- so the strength of these tints plays a role in pricing diamonds. The most widely used color grading system is the one developed by the GIA (Gemological Institute of America), which identifies colors with alphabetical letters as follows:

Diamond Color Scale


A diamond is distinguished by its intrinsic natural characteristics, just as a person would be noted for her blue eyes or his brown hair or their unique fingerprints. Noted as a diamond's clarity, these characteristics can be present on the surface as tiny surface blemishes such as scratches, nicks, pits, abrasions, extra facets, etc. --  or it can be present within the stone (referred to as inclusions) such as crystals, cleavages, clouds, grain lines, cavities and so on. GIA (Gemological Institue of America) first introduced and then further developed the diamond grading system which includes the following diamond clarity grading scale:

Diamond Guide Clarity Scale

FL Diamonds
Flawless: No internal or external flaws.

IF Diamonds
Internally Flawless: No internal flaws.

VVS1, VVS2 Diamonds
Very, Very Slightly included: Very difficult to see inclusions with 10x magnification.

VS1, VS2 Diamonds
Very Slightly Included: Inclusions are visible under 10x magnification to a skilled grader.

SI1, SI2 Diamonds
Slightly Included: Inclusions are visible under 10x magnification and may be visible with the unaided eye.

I1, I2, I3 Diamonds
Included: Inclusions are visible with the unaided eye.

Carat Weight

It is customary to refer to a diamond's weight as Carat. Historically, the name Carat originated in ancient times when gemstones were weighed against the carob bean. The price of a diamond rises exponentially with its weight.

Diamond Guide Carat Scale

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