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Save On Certified Diamonds -- Certified diamond engagement ring and jewelry. How to buy certified diamonds at wholesale prices

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Laboratories

Which is the most reputable and most respected Diamond Laboratory when it comes to Diamond Certifications is the big question? The answer is simple. Although there are many Diamond Laboratories in the world that cater to the Diamond Industry, there are only two which are considered to be the most trusted of all. Below are a few of the most commonly heard of Diamond Laboratories.

  • Gemological Institute of America (GIA)
  • American Gem Society (AGS)
  • European Gemological Laboratory (EGL)
  • International Gemological Institute (IGI)

The strictest and most respected Diamond Laboratories in the Diamond Trade are the The Gemological Institute of America (GIA) which is considered to be the industry standard and is the most widely used and trusted name in the diamond trade, and the American Gem Society (AGS). The Gemological Institute of America (GIA) was born in 1931 and the American Gem Society (AGS) in 1996. Which Laboratory is better? The answer is both laboratories meticulously scrutinize the diamonds they grade and use very stringent guidelines, and are therefore both excellent.

The Gemological Institute of America (GIA)

The Gemological Institute of America (GIA) uses a GIA Diamond Grading Report and a GIA Diamond Dossier.

The GIA Diamond Grading Report, also known as the GIA Diamond Certificate, is the premier certification in the Diamond Industry, when we speak of a diamond's authenticity and quality, which includes the diamond's 4C's, of Color, Clarity, Cut and Carat Weight.

Included in the GIA Diamond Grading Report is:

(1) Date (2) Report Number (3) Laser Inscription Registry (4) Shape and Cutting Style (5) Measurements in (mm) (6) Carat Weight (7) Color Grade (8) Clarity Grade (9) Cut Grade (10) Finish (11) Polish (12) Symmetry (13) Fluorescence (14) Comments (15) Additional Inscriptions (16) A Diagram with the Diamond's Plotted Clarity Characteristics (17) A Graphic of the Diamond's Proportion Cut (18) GIA Color Scale (19) GIA Clarity Scale (20) GIA Cut Scale (21) Key to Symbols (22) Security Features.

Below is a sample image of a GIA Diamond Grading Report

Click Image to Enlarge

The Gemological Institute of America (GIA) grades diamonds for the Diamond Industry and issues Diamond Grading Reports for loose natural diamonds that weigh from 0.15 carats and larger. However the GIA Laboratory will not grade and issue GIA Diamond Grading Reports for simulant stones, synthetic stones, diamonds that are mounted or diamonds that have been enhanced through fracture filling or coating. In the case of diamonds that have been laser drilled the GIA Diamond Grading Reports will disclose this treatment.

The GIA Diamond Dossier is very similar to the GIA Diamond Grading Report in that it furnishes you with the same grading information as the latter but does not show the diagram with the diamond's plotted clarity characteristics. Included in the GIA Diamond Dossier is a microscopic laser inscription of the report number that is on the diamond's girdle. The Gemological Institute of America (GIA) issues a GIA Diamond Dossier for loose natural diamonds that weigh from 0.15 carats to 1.99 carats. The GIA Laboratory will not grade and issue a GIA Diamond Dossier for simulant stones, synthetic stones, diamonds that are mounted or diamonds that have been enhanced through fracture filling or coating. In the case of diamonds that have been laser drilled the GIA Diamond Dossier will disclose this treatment.

Included in the GIA Diamond Dossier is:

(1) Date (2) Report Number (3) Laser Inscription Registry (4) Shape and Cutting Style (5) Measurements in (mm) (6) Carat Weight (7) Color Grade (8) Clarity Grade (9) Cut Grade (10) Finish (11) Polish (12) Symmetry (13) Fluorescence (14) Comments (15) Additional Inscriptions (16) Clarity Characteristics (17) A Graphic of the Diamond's Proportion Cut (18) GIA Color Scale (19) GIA Clarity Scale (20) GIA Cut Scale (21) A microscopic laser inscription security feature of the report number that is on the diamond's girdle.

Below is a sample image of a GIA Diamond Dossier.

Click Image to Enlarge

Colored Diamonds: The Gemological Institute of America (GIA) also grades loose colored diamonds and issues both a GIA Colored Diamond Grading Report and a GIA Colored Diamond Identification and Origin Report. The GIA Colored Diamond Grading Report is issued with a full grading of the diamond just like diamonds from the D to Z color ranges. The Report will have a Color Grade, Color Origin specifying if the stone is natural or treated in color, Clarity Grade, Carat Weight and a diagram with the diamond's plotted clarity characteristics. In the case of colored diamonds we speak of color grading them based on the presence of color in the diamond. Under a controlled viewing and lighting environment in the Laboratory a colored diamond is color graded and a color grade of Blue for instance. The Hue which narrates the tone and saturation effect of the colored diamond is selected using a scale of: Fancy Light, Fancy, Fancy Intense, Fancy Deep, Fancy Vivid and Fancy Dark.

The Gemological Institute of America (GIA) grades colored diamonds and issues a GIA Colored Diamond Grading Report for loose natural colored diamonds that weigh from 0.15 carats and larger. The GIA Laboratory will not grade and issue GIA Colored Diamond Grading Reports for simulant stones, synthetic stones, colored diamonds that are mounted or colored diamonds that have been enhanced through fracture filling or coating. In the case of colored diamonds that have been laser drilled the GIA Colored Diamond Grading Report will disclose this treatment.

Included in the GIA Colored Diamond Grading Report is:

(1) Date (2) Report Number (3) Laser Inscription Registry (4) Shape and Cutting Style (5) Measurements in (mm) (6) Carat Weight (7) Color Origin (8) Color Grade (9) Color Distribution (10) Clarity Grade (11) Finish (12) Polish (13) Symmetry (14) Fluorescence (15) Comments (16) A Diagram with the Diamond's Plotted Clarity Characteristics (17) Key to Symbols (18) GIA Clarity Scale (19) GIA Colored Diamond Scale (20) A Graphic of the Diamond's Proportion Cut (21) Security Features.

The GIA Colored Diamond Identification and Origin Report: When the Gemological Institute of America (GIA) grades colored diamonds they issue a GIA Colored Diamond Identification and Origin Report for the stone. This report describes the color grade of the diamond and also its origin of color. The origin of color as we previously mentioned specifies if the stone is natural or treated in color.

The Gemological Institute of America (GIA) issues a GIA Colored Diamond Identification and Origin Report for colored diamonds that are loose natural colored diamonds, as well as mounted colored diamonds that weigh any carat weight. The GIA Laboratory will not grade and issue GIA Colored Diamond Identification and Origin Reports for simulant stones, synthetic stones or colored diamonds that have been enhanced through fracture filling or coating. In the case of colored diamonds that have been laser drilled the GIA Colored Diamond Identification and Origin Report will disclose this treatment.

Included in the GIA Colored Diamond Identification and Origin Report is:

(1) Date (2) Report Number (3) Shape and Cutting Style (4) Measurements in (mm) (5) Carat Weight (6) Color Origin (7) Color Grade (8) Color Distribution (9) Comments (10) GIA Colored Diamond Scale (11) Security Features.

Below is a sample image of a GIA Colored Diamond Identification and Origin Report

Click Image to Enlarge

The GIA Synthetic Diamond Grading Report: This report is very similar to the GIA Diamond Grading Report except that the color and clarity grades are both described in a more general form. The report number is inscribed in the girdle through laser inscription, to give added disclosure and identification of the stone. The GIA Synthetic Diamond Grading Report also discloses on the report that the diamond is laboratory grown.

The Gemological Institute of America (GIA) grades synthetic diamonds and issues a GIA Synthetic Diamond Grading Report for loose colorless and near colorless synthetic diamonds that weigh from 0.15 carats and larger. The GIA Laboratory will not grade and issue GIA Synthetic Diamond Grading Reports for simulant stones, mounted synthetic stones and synthetic diamonds that have been enhanced through fracture filling or coating. In the case of synthetic diamonds that have been laser drilled the GIA Synthetic Diamond Grading Report will disclose this treatment.

Included in the GIA Synthetic Diamond Grading Report is:

(1) Date (2) Report Number (3) Laser Inscription Registry (4) Identification (5) Shape and Cutting Style (6) Measurements in (mm) (7) Carat Weight (8) Color Grade (9) Clarity Grade (10) Cut Grade (11) Finish (12) Polish (13) Symmetry (14) Fluorescence (15) Comments (16) Additional Inscriptions (17) GIA Color Scale (18) GIA Clarity Scale (19) GIA Cut Scale (20) Security Features (21) Key to Symbols(22) A Diagram with the Diamond's Plotted Clarity Characteristics (23) A Graphic of the Diamond's Proportion Cut

Below is a sample image of a GIA Synthetic Diamond Grading Report

GIA Synthetic Diamond Grading Report

Click Image to Enlarge

The GIA Synthetic Colored Diamond Grading Report: This report is very similar to the GIA Colored Diamond Grading Report except that the color and clarity grades are both described in a more general form. The report number is inscribed in the girdle through laser inscription, to give added disclosure and identification of the stone. The GIA Synthetic Colored Diamond Grading Report also discloses on the report that the diamond is laboratory grown.

The Gemological Institute of America (GIA) grades synthetic colored diamonds and issues a GIA Synthetic Colored Diamond Grading Report for loose synthetic colored diamonds that weigh from 0.15 carats and larger. The GIA Laboratory will not grade and issue GIA Synthetic Colored Diamond Grading Reports for simulant stones, mounted synthetic stones and synthetic colored diamonds that have been enhanced through fracture filling or coating. In the case of synthetic colored diamonds that have been laser drilled the GIA Synthetic Colored Diamond Grading Report will disclose this treatment.

Included in the GIA Synthetic Colored Diamond Grading Report is:

(1) Date (2) Report Number (3) Laser Inscription Registry (4) Identification (5) Shape and Cutting Style (6) Measurements in (mm) (7) Carat Weight (8) Color Grade (9) Color Distribution (10) Clarity Grade (11) Finish (12) Polish (13) Symmetry (14) Fluorescence (15) Comments (16) A Diagram with the Diamond's Plotted Clarity Characteristics (17) Key to Symbols (18) GIA Clarity Scale (19) GIA Colored Diamond Scale (20) A Graphic of the Diamond's Proportion Cut (21) Security Features (22) Additional Inscriptions

Below is a sample image of a GIA Synthetic Colored Diamond Grading Report

GIA Synthetic Colored Diamond Grading Report

Click Image to Enlarge

The GIA Synthetic Colored Diamond Report: This report describes the color grade of a synthetic colored diamond. The report number is inscribed in the girdle through laser inscription, to give added disclosure and identification of the stone. The GIA Synthetic Colored Diamond Report also discloses on the report that the diamond is laboratory grown.

The Gemological Institute of America (GIA) grades synthetic colored diamonds and issues a GIA Synthetic Colored Diamond Report for loose synthetic colored diamonds as well as mounted synthetic colored diamonds that weigh any carat weight. The GIA Laboratory will not grade and issue GIA Synthetic Colored Diamond Reports for simulant stones and synthetic colored diamonds that have been enhanced through fracture filling or coating.

American Gem Society (AGS)

The American Gem Society Laboratory (AGS) was born in 1996 and has provided the diamond industry with state of the art diamond grading services.

The American Gem Society Laboratory (AGS) calls its Diamond Certificate a Diamond Quality Certificate (DQC). The Diamond Quality Certificate is graded by a knowledgeable and ethical member of the American Gem Society. The Diamond Quality Certificate is an assurance and guarantee that the diamond quality is graded and certified for clarity, color, cut and carat weight. The Diamond Quality Certificate is available only through members of the American Gem Society (AGS).

As we have mentioned earlier, the Diamond Quality Certificate is an authentication that is validated and enforced by a Diamond Professional, who would be either a Certified Gemologist, Certified Gemologist Appraiser or Registered Jeweler. These individuals are committed to the American Gem Society for their ethics, knowledge and to protect the consumer by their assurance of the diamond's quality and value.

Having said this, the Diamond Quality Certificate (DQC) is an

(1) Assurance that members of the American Gem Society are committed to building lasting customer relationships.

(2) Assurance that as a customer you are buying an authentic quality diamond.

(3) Assurance that the diamond has been graded using the State of the Art Technology of the American Gem Society.

(4) Assurance that the customer is receiving knowledgeable information about the stone.

(5) Assurance that the members of the American Gem Society will maintain the highest standards when it comes to the ethical demeanor and professional behavior they conduct within the jewelry industry.

The Diamond Quality Certificate (DQC) sets itself apart in that it is

(1) Only available through retail members of the American Gem Society.

(2) Can only be signed by an American Gem Society titleholder.

(3) Will not be issued for diamond that are sold over the Internet.

(4) Will only be issued for diamonds that are of a carat weight of 0.18 carats or more.

(5) Comes with a unique foil stamp and hologram that protects the authenticity of the diamond certificate.

(6) The consumer can register a diamond with the American Gem Society.

Should a member of the American Gem Society not uphold to the Diamond Quality Certificate standards and integrity, then that member will be subject to the American Gem Society's "Grievance and Review" process, in which a member could be stripped from membership.

Included in the American Gem Society (AGS) Diamond Quality Certificate (DQC) is:

(1) Date (2) Report Number (3) Laser Inscription Registry on the Girdle (4) Shape and Cutting Style (5) Measurements in (mm) (6) Carat Weight (7) Color Grade (8) Clarity Grade (9) Cut Grade (10) AGSL Computer Generated Light Performance Map of the Diamond (11) Polish (12) Symmetry (13) Fluorescence (14) Comments (15) Bar Code (16) A Diagram with the Diamond's Plotted Clarity Characteristics (17) A Graphic of the Diamond's Proportion Cut (18) AGS Color Scale (19) AGS Clarity Scale (20) AGS Cut Scale (21) Key to Symbols (22) Original Authentication Stamp.

Below is a sample image of an American Gem Society (AGS) Diamond Quality Certificate.

American Gem Society (AGS) Diamond Quality Certificate

Click Image to Enlarge

Affordable advertising rates - Drive customers to your business - Build powerful brand recognition - Global exposure leads to a successful business Affordable advertising rates - Drive customers to your business - Build powerful brand recognition - Global exposure leads to a successful business Affordable advertising rates - Drive customers to your business - Build powerful brand recognition - Global exposure leads to a successful business

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