Lab Grown Diamonds
Lab Grown DiamondsCommitment to Confidence
IGI pioneered the grading of lab grown diamonds in 2005 and continues to lead the field today.
More complex than the analysis of most gemstones, IGI’s lab grown diamond certification process demonstrates unparalleled expertise in the testing and documentation of loose stones and finished jewelry items undergoing lab grown diamond certification. Without disassembling mounted stones or complex pieces, IGI experts perform thorough, objective analysis.
IGI screens every gemstone using state of the art technologies to determine naturally mined, laboratory grown or simulant origin. Experienced graduate gemologists conduct further assessment in controlled conditions, detailing relevant gemological characteristics according to the strictest international system. Upon request the growth process used and presence of treatments will be noted in the comments section of the IGI lab diamond report.
How to read an IGI Laboratory Grown Diamond Report
The IGI laboratory grown diamond report for finished jewelry describes the article, identifying all mounted gemstones as well as precious metal content and purity stamps, if present.
For center stones; shape, cutting style, measurements and 4Cs assessments are provided as mounting permits. The cover of the Lab Grown Diamond Jewelry Report is yellow.
Grading Scale
Color
Colorless
Near Colorless
Slightly Tinted
Very Light Color
Light Color
Clarity
Internally Flawless
Very Very Slightly Included
Very Slightly Included
Slightly Included
Included
In lab grown diamond certification for round brilliant cuts, the overall proportions are compared with IGI studies of brightness, fire, scintillation, and pattern to determine the Cut Grade. Fancy shaped diamonds are assessed using a four-step system combining finish assessment with proportions qualifications, shape-specific requirements and light return grading. All diamond shapes and colors will have craftsmanship grades for polish and symmetry noted on the grading report, ensuring rigorous lab grown diamond certification standards are met.
Diamond color is graded in a standardized viewing environment, an essential part of the lab grown diamond certification process. IGI gemologists analyze color in the D to Z color range with the diamond placed upside down, viewed through the side, to facilitate a neutral view. Multiple graders submit opinions independently, with no collaboration, and the grade is determined when there are sufficient agreeing opinions. Diamond clarity is assessed at 10X magnification. As with natural stones, clarity assessment in lab diamond certification depends on the visibility, size, number, location and nature of internal and surface characteristics at that magnification. Diamonds with characteristics which are immediately obvious or noticeable are likely candidates for lower grades, whereas diamonds with characteristics which are minor, minute or extremely difficult to see at that magnification may qualify for the higher grades, in alignment with natural and lab grown diamond certification criteria.
IGI co-created the modern laser inscription process. Using a very fine and precise laser beam, alphanumeric characters, a brand logo or even a personalized message can be inscribed on the girdle or outside circumference of a diamond. Adding the report number to a diamond’s girdle with Laserscribe permits fast identification of a gemstone under magnification, verifying of all of its gemological details. Now standardized as an efficient and easy way to identify a diamond, the majority of diamonds around the world have laser inscriptions. IGI Laserscribe enhances the security of all items by linking to their jewelry, loose stone or gemstone identification report, further ensuring the integrity of the lab grown diamond certification process.
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A collection of two-minute videos designed to help shoppers make informed decisions when buying or selling diamonds, gems, and jewelry.
Lab Grown Diamonds
Did you know? Only natural and lab grown diamonds score 10 on the Mohs hardness scale; nothing else comes close.
Learn MoreCarat Weight
Did you know? Diamonds of the same carat weight do not necessarily appear to be the same size.
Color
Did you know? Gemologists perform D to Z color grading with the diamond upside down, viewed through the side.
Learn MoreRelated Reports
Regardless of location or marketplace, an authentic IGI Laboratory Report is the common language of trust and confidence in the gemological world.
All ReportsLab Grown Diamond Report & Services
Our Laboratory Grown Diamond Report offers a comprehensive analysis of the distinctive properties inherent in lab-created diamonds. These meticulously crafted gems, produced in controlled environments, replicate the beauty and characteristics of their natural counterparts. The lab-grown diamond report delivers detailed insights into their flawless creation and ethical sourcing, supported by diamond certification serving as an indispensable resource for individuals seeking sustainable luxury without sacrificing quality or brilliance.
Natural Diamond Report
IGI Natural Diamond Reports give an accurate assessment of a diamond’s cut, color, clarity, and carat weight according to strict international standards, supported by detailed diamond certification.
