With nearly 100 years of research, education and experience, GIA is the authority on diamond, gemstone and pearl reports. We’ve quite literally given the industry the language that now defines quality. When it comes to defining diamond quality, there is no substitute for a GIA report.
Types of GIA reports:
With nearly 100 years of research, education and experience, GIA is the authority on diamond, gemstone and pearl reports. We’ve quite literally given the industry the language that now defines quality. When it comes to defining diamond quality, there is no substitute for a GIA report.
Types of GIA reports:
The GIA Diamond Grading Report.
This report uses the universally accepted GIA standards to determine a natural diamond’s shape, color, clarity, cut and carat weight – as well as proportions, finish and treatments. It also includes a plotted diagram which maps your diamond, identifying its unique characteristics.
The GIA Diamond Origin Report.
In addition to a full, unbiased 4Cs assessment, this report also identifies a natural diamond’s country of origin.
The GIA Diamond Dossier ® .
A compact and concise version of the GIA Diamond Grading Report available for natural diamonds that weigh between 0.15 and 1.99 carats. This report includes all the important 4Cs grading results but does not include the plotted diagram.
Online-Only Reports.
The GIA Diamond eReport and the GIA Diamond Focus ™ R eport both include full 4Cs grading results. The GIA Diamond eReport , which includes a face-up diamond image, is available for loose, natural D-to-Z color diamonds only, weighing 0.15-2.99 carats. The GIA Diamond Focus ™ Report is available f or select loose, natural diamonds under 0.40 carats .
The origin of your diamond can be an important part of your purchasing decision. A GIA Diamond Origin Report can help you identify where a diamond came from.
Our full printed Diamond Origin Reports include:
– Confirmed region of geographical origin.
– Full 4Cs Quality Report.
– Inscription and report number on your diamond’s girdle.
– Full digital images of your diamond polished, and unpolished.
– Image-rich story of origin and journey.
The origin of your diamond can be an important part of your purchasing decision. A GIA Diamond Origin Report can help you identify where a diamond came from.
Our full printed Diamond Origin Reports include:
– Confirmed region of geographical origin.
– Full 4Cs Quality Report.
– Plotted diagram.
– Inscription and report number on your diamond’s girdle.
– Full digital images of your diamond polished, and unpolished.
– Image-rich story of origin and journey.
Every diamond has a rough-to-polish origin story. With over 60 years of data, expertise and experience at our fingertips, GIA is a trusted source for diamond origin information.
Origin can tell us not just where a diamond is from but how it was cultivated. Many customers desire to better understand how their diamond purchase may economically impact local communities. Requesting a GIA Diamond Origin Report is the best way to understand the impact of your purchase on the local community of its origin.
For the GIA Diamond Origin Report, we receive rough diamond samples from participating companies, consistent with our submission guidelines, in a documented parcel. We receive the samples for rough diamond analysis, and then receive the associated faceted stone to compare and potentially match. This scientific process is the most accurate way to confirm the origin of a diamond.
When we talk about diamond color, we usually mean the absence of color.
But unlike colorless or near-colorless diamonds that generally fall on the D-to-Z color range, sometimes nature produces diamonds with a blue, brown, pink, yellow or green hue among others. These diamonds are extremely rare, and therefore highly desirable. The more saturated and more distinct the shade, the higher the rating.
Hue: Characteristic color.
Tone: Relative lightness or darkness.
Saturation: Color depth or strength.
Evaluated under highly controlled conditions with color comparators, one of 27 hues is selected for fancy color grading, whereas tone and saturation are determined using terms such as “Fancy Light,” “Fancy Intense,” and “Fancy Vivid.”
Hue: Characteristic color.
Tone: Relative lightness or darkness.
Saturation: Color depth or strength.
Evaluated under highly controlled conditions with color comparators, one of 27 hues is selected for fancy color grading, whereas tone and saturation are determined using terms such as “Fancy Light,” “Fancy Intense,” and “Fancy Vivid.”
– Color grade
– Color origin (natural vs. treated)
– Carat weight
– Clarity
– Plotted diagram of characteristics
– Full color imagery
GIA Colored Diamond Grading Report.
An assessment of color, clarity, polish and symmetry, including a plotted diagram and a graphic representation of its proportions.
GIA Colored Diamond Origin Report.
Includes the same 4Cs information as the GIA Diamond Grading Report along with scientific matching to a diamond rough of known origin. This report does not include faceted stones and requires a rough diamond report number to verify that the spectra data for the original rough diamond matches the new polished diamond. If a colored diamond is matched, a laser inscription with the colored diamond’s unique report number will be added to the diamond to provide additional security and documentation.
GIA Colored Diamond Identification and Origin Report.
Includes a color grade along with the color origin of the diamond. These GIA reports are available for natural colored diamonds of any size that haven’t undergone any unstable treatments.
GIA Colored Diamond Grading Report.
An assessment of color, clarity, polish and symmetry, including a plotted diagram and a graphic representation of its proportions.
GIA Colored Diamond Origin Report.
Includes the same 4Cs information as the GIA Diamond Grading Report along with scientific matching to a diamond rough of known origin. This report does not include faceted stones and requires a rough diamond report number to verify that the spectra data for the original rough diamond matches the new polished diamond. If a colored diamond is matched, a laser inscription with the colored diamond’s unique report number will be added to the diamond to provide additional security and documentation.
GIA Colored Diamond Identification and Origin Report.
Includes a color grade along with the color origin of the diamond. These GIA reports are available for natural colored diamonds of any size that haven’t undergone any unstable treatments.
There are only so many natural diamonds in the world.
For many diamond buyers, laboratory-grown diamonds offer a cost-effective alternative. Like any diamond variation, understanding what you are buying is the secret to making a wise purchasing decision.
Laboratory-grown diamonds have essentially the same characteristics as natural diamonds. Differentiating them requires specialized equipment.
Also referred to as man-made, synthetic, created or lab-grown diamonds, laboratory-grown diamonds are often not easily identifiable by eye. Instead, identification is based on a combination of features, considering the presence, absence, relative concentrations and distributions of minute atomic-level irregularities that are detected using a range of analytical techniques.
Laboratory-Grown Diamond Reports by GIA are available in digital-only formats. They present the 4Cs characteristics and clearly identify the gems as laboratory-grown. The reports contain a QR code and a link to an educational page with more information including how they are differentiated from natural diamonds.
There are only so many natural diamonds in the world.
For many diamond buyers, laboratory-grown diamonds offer a cost-effective alternative. Like any diamond variation, understanding what you are buying is the secret to making a wise purchasing decision.
Laboratory-grown diamonds have essentially the same characteristics as natural diamonds. Differentiating them requires specialized equipment.
Also referred to as man-made, synthetic, created or lab-grown diamonds, laboratory-grown diamonds are often not easily identifiable by eye. Instead, identification is based on a combination of features, considering the presence, absence, relative concentrations and distributions of minute atomic-level irregularities that are detected using a range of analytical techniques.
Laboratory-Grown Diamond Reports by GIA are available in digital-only formats. They present the 4Cs characteristics and clearly identify the gems as laboratory-grown. The reports contain a QR code and a link to an educational page with more information including how they are differentiated from natural diamonds.
Photo courtesy of Lightbox.
GIA Laboratory-Grown Diamond Report. Digital-only report for loose D-to-Z laboratory-grown diamonds over 0.15 carats. Includes full 4Cs assessment and plotted clarity diagram.
GIA Laboratory-Grown Diamond Dossier. Digital-only report for loose D-to-Z laboratory-grown diamonds between 0.15 to 9.99 carats. Includes full 4Cs assessment.
GIA Laboratory-Grown Colored Diamond Report. Digital-only report for loose, colored laboratory-grown diamonds over 0.15 carats. Describes a full quality assessment of color, clarity, carat weight and only for standard round brilliant – cut and a plotted clarity diagram.
GIA Laboratory-Grown Colored Diamond Report – Color Identification. Digital-only report for loose, colored laboratory-grown diamonds at any carat weight. Describes specifications for color and color distribution.
GIA Laboratory-Grown Diamond Report. Digital-only report for loose D-to-Z laboratory-grown diamonds over 0.15 carats. Includes full 4Cs assessment and plotted clarity diagram.
GIA Laboratory-Grown Diamond Dossier. Digital-only report for loose D-to-Z laboratory-grown diamonds between 0.15 to 9.99 carats. Includes full 4Cs assessment.
GIA Laboratory-Grown Colored Diamond Report. Digital-only report for loose, colored laboratory-grown diamonds over 0.15 carats. Describes a full quality assessment of color, clarity, carat weight and only for standard round brilliant – cut and a plotted clarity diagram.
GIA Laboratory-Grown Colored Diamond Report – Color Identification. Digital-only report for loose, colored laboratory-grown diamonds at any carat weight. Describes specifications for color and color distribution.
During evaluation, every laboratory-grown diamond is laser inscribed as “laboratory-grown” on the girdle with its GIA report number to ensure that the diamond will always be clearly differentiated from a natural diamond.
LGDR by GIA is not issued for simulants, mounted laboratory-grown diamonds or those that have undergone unstable treatments, such as fracture filling or coating. Laboratory-grown diamond reports may be issued for diamonds that have been laser drilled.
With a database of more than 100,000 individual colored gemstone samples, GIA’s expertise extends well beyond diamonds to colored gemstones. Utilizing decades of experience and analytical tools, we can pinpoint the identity and origin of many gemstones.
We also identify whether or not synthetics, simulants or stones have undergone treatment, including whether or not a gemstone’s color is natural or the result of a treatment.
The GIA Identification Report.
Identifies the type of gemstone and whether it is natural or synthetic, describes detectable treatments, details a full description of cut, shape, weight, measurement and color, and includes a photograph of the gemstone. While available for diamonds, this report is primarily for colored stones.
The GIA Identification & Origin Report.
Identifies the type of colored gemstone, natural or synthetic, informed opinion on geographical origin based on research and known samples, describes detectable treatments, details a full description of cut, shape, weight, measurement, and color, and includes a photograph of the colored gemstone.
Pearl culturing has become a popular alternative to natural pearls in jewelry. GIA created a standardized language for describing both loose and strung pearl quality. GIA’s system is based on seven Pearl Value Factors™: size, shape, color, luster, surface quality, nacre quality and matching.
GIA Pearl Identification Report. Identifies the quantity, weight, shape, color, origin (natural or cultured and type of nucleation), mollusk (if determinable), environment (saltwater or freshwater), and any detectable treatments.
GIA Pearl Classification Report. Includes all Identification Report information as well as classifications for luster, surface, nacre thickness, and matching (if applicable).
GIA Pearl Identification and Classification Report. Includes all Identification Report and Classification Report information for loose and strung pearls.
Pearl culturing has become a popular alternative to natural pearls in jewelry. GIA created a standardized language for describing both loose and strung pearl quality. GIA’s system is based on seven Pearl Value Factors™: size, shape, color, luster, surface quality, nacre quality and matching.
GIA Pearl Identification Report. Identifies the quantity, weight, shape, color, origin (natural or cultured and type of nucleation), mollusk (if determinable), environment (saltwater or freshwater), and any detectable treatments.
GIA Pearl Classification Report. Includes all Identification Report information as well as classifications for luster, surface, nacre thickness, and matching (if applicable).
GIA Pearl Identification and Classification Report. Includes all Identification Report and Classification Report information for loose and strung pearls.
