No. In fact, GIA will not certify a diamond that has been clarity enhanced or laser drilled, and EGL will make specific comments regarding the procedure in the "comments" section of the certificate.   ShopADF does not believe in clarity enhancement. The reason we consider most clarity enhancement of diamonds to be bad, is that it is done by filling in surface cracks and fissures. If this could be done with diamond, by vapour deposition, then it would be almost imperceptible, undetectable, irreversible and stable, in which case, we would consider it as quite acceptable, but probably subject to disclosure rules. However, the filling material is not diamond, but usually a type of heavy glass. While we accept the arguments of those who carry out clarity enhancement, and those who actively market such stones, most of whom are probably quite honest, we believe that downstream from these reputable dealers, there are many people who would think nothing of failing to disclose the fact that the stone was enhanced, and we believe such failure to disclose to be fraudulent. If the carat weight of the diamond formed an important part of the contract, then because some of the weight would be non-diamond material, then any weight stated or estimated would be incorrect, having been artificially increased. Our other main objection is that the filling material has a much lower tolerance of high temperatures than diamond, so that when repair work is needed on fracture filled stones, the filling is very likely crack or melt, leaving the diamond's owner and the workshop in a difficult position, and neither with any recourse unless the original vendor or enhancer can be found, and is prepared to rectify the problem.

A certificate is a diamond grading report issued by an independent laboratory, detailing the diamond's weight, dimensions, color, clarity and cut. At American Diamonds, all loose diamonds are accompanied by reports issued by the Gem Trade Lab of the Gemological Institute of America (GIA) or the European Gemological Laboratory (EGL). The GIA and EGL, whose standards are the strictest in the diamond industry, are the undisputed international authorities on diamond grading and gem identification. The GIA issues a Diamond Grading Report or Diamond Dossier. The EGL calls their report a Diamond Certificate.

American Diamonds Forever is in strict compliance with the United Nations Kimberely Process – this assures that conflict diamonds cannot come into the U.S. The diamonds we sell have been purchased from legitimate sources not involved in funding conflict diamonds and in compliance with the United Nations resolutions. American Diamonds hereby guarantees that these diamonds are conflict free, based on personal knowledge and/or written guarantees provided by the supplier of these diamonds. All of our diamonds are purchased from DeBeer’s DTC Sightholders.

Fluorescence is an emission of light from within a diamond and can occur naturally. To detect it a "black" or UV (ultraviolet) light must be used. Yellow fluorescence and in some cases strong blue fluorescence may make a diamond appear cloudy or milky, even under daylight. In "lower" colors (I and below) some blue fluorescence may help the diamond to appear whiter than it technically is. Fluorescence information is always available on the certificate.

An appraisal is a document that contains all the pertinent information about a diamond with respect to the Four Cs, but differs from a grading report in that it also includes its estimated retail or replacement value. An appraisal is required by insurance companies since the Grading Report Certificate or Diamond Quality Document does not indicate price or value. The GIA and EGL never suggest a retail value, nor do they grade mounted diamonds. If the diamond is set in jewelry, the appraisal also describes the precious metal that is used in the mounting.

The GIA Diamond Grading Report and Diamond Dossier detail all the individual characteristics of the diamond commonly known as the Four Cs. The Diamond Grading Report includes a diagram of the diamond indicating the type, size and location of distinguishing marks that determine its clarity grade. The Diamond Dossier, which is issued for diamonds weighing under 1 carat, does not include a diagram, but does include a laser inscription registry, which notes the unique GIA report number that has been laser inscribed onto the diamond.

THE GIA 
The Gemological Institute of America founded by Robert M. Shipley, is a recognized industry authority for grading diamonds and gemstones. In 1953, Richard T. Liddicoat created and introduced the international Diamond Grading system. Primarily an independent nonprofit organization GIA is well known as an authority in gemology. Recently relocated from Santa Monica, Ca into a new facility in Carlsbad , CA.

The west coast laboratory is located at:
5355 Armada Dr. Suite 200
Carlsbad, CA 92008
760-603-4500.

The east coast laboratory is located at:
580 Fifth Ave. Suite 200
New York, NY 10035
212-221-5858.

GIA Certification Example

The Diamond Certificate, issued by the European Gemological Laboratory, details the same variables that make up the Four Cs as the GIA. The diamond certificate records all the relevant information pertaining to the diamond, including carat weight, colour grade, clarity grade, measurements and physical properties as well as plotting diagrams.

THE EGL
The European Gemological Laboratory is a recognized industry authority for grading diamonds and gemstones. It is an independent gemological laboratory. The EGL-USA mission Statement embodies EGL goals:

"As a global gemological institution, EGL has a sacred trust. Our goal is to ensure this by protecting the integrity of the jewelry trade and the public's interest through applied science, innovation, education and exceptional service."

First established in 1974 with offices in:
E.G.L. Belgium, 15 Schupstraat, ANTWERP, 2018, (32)323 32458

E.G.L. Korea, 305, On Young Bldg. 19-1, Bongik-Dong,
Chongro-Ru, Seoul 110-390 KOREA (82)2747 2045

E.G.L. Great Britain, 83 Clerkenwell Rd. Suite 209, LONDON EC 1R, (44)1

We can send out your diamond to the GIA or EGL to get it authenticated. This is a detailed analysis of your diamond from the industry's most reputable leader in diamond grading.

Since the 1970's, Martin Rappaport has published the Rappaport Diamond Report for the diamond and jewelry trade. Today it is considered the primary source of diamond price information and is used in diamond markets world-wide as the basis for establishing inter-dealer prices. It provides invaluable information for trading stones effectively and profitably. Once the diamond's 4C's are established, the price sheet serves as a starting point for negotiations and as a basis for establishing the diamond's value. Obviously the closer to the source (diamond manufacturer, diamond wholesaler, diamond retailer, jewelry wholesaler, jewelry store, final customer) the better your price compared to the Rapp