IGI Certified Diamonds
Brilliance relies on highly regarded gemological laboratories such as the IGI (International Gemological Institute) to certify every loose diamond we offer. The IGI uses universally recognized standards for grading diamonds. The IGI is the largest independent gemological laboratory in the world, with locations in all major diamond centers. An IGI certificate is comprised of a detailed analysis of a diamond's characteristics by several expert gemologists.
Shop the selection of IGI certified diamonds below and narrow your search by choosing additional filters. For assistance, contact a Brilliance diamond and jewelry expert at 866-737-0754.
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0.15 Carat Cut Loose Diamond, E Color, VS1 Clarity, Ideal Cut, IGI Certified
0.15 carat shape diamond, E color, VS1 clarity, Ideal cut, IGI certified diamond from Brilliance.
Additional Information
0.15 Carat Cut Loose Diamond, F Color, VS1 Clarity, Ideal Cut, IGI Certified
0.15 carat shape diamond, F color, VS1 clarity, Ideal cut, IGI certified diamond from Brilliance.
0.15 Carat Cut Loose Diamond, F Color, VS2 Clarity, Super Ideal Cut, IGI Certified
0.15 carat shape diamond, F color, VS2 clarity, Super Ideal cut, IGI certified diamond from Brilliance.
0.15 Carat Cut Loose Diamond, E Color, VS1 Clarity, Super Ideal Cut, IGI Certified
0.15 carat shape diamond, E color, VS1 clarity, Super Ideal cut, IGI certified diamond from Brilliance.
0.15 Carat Cut Loose Diamond, F Color, VS1 Clarity, Super Ideal Cut, IGI Certified
0.15 carat shape diamond, F color, VS1 clarity, Super Ideal cut, IGI certified diamond from Brilliance.
0.15 Carat Cut Loose Diamond, E Color, VS1 Clarity, Super Ideal Cut, IGI Certified
0.15 carat shape diamond, E color, VS1 clarity, Super Ideal cut, IGI certified diamond from Brilliance.
0.16 Carat Cut Loose Diamond, G Color, VS2 Clarity, Ideal Cut, IGI Certified
0.16 carat shape diamond, G color, VS2 clarity, Ideal cut, IGI certified diamond from Brilliance.
0.16 Carat Cut Loose Diamond, G Color, VS1 Clarity, Ideal Cut, IGI Certified
0.16 carat shape diamond, G color, VS1 clarity, Ideal cut, IGI certified diamond from Brilliance.
0.15 Carat Cut Loose Diamond, E Color, VS1 Clarity, Super Ideal Cut, IGI Certified
0.15 carat shape diamond, E color, VS1 clarity, Super Ideal cut, IGI certified diamond from Brilliance.
0.15 Carat Cut Loose Diamond, E Color, VS1 Clarity, Super Ideal Cut, IGI Certified
0.15 carat shape diamond, E color, VS1 clarity, Super Ideal cut, IGI certified diamond from Brilliance.
Certified Diamonds
A diamond certificate is an easily understood document prepared by an expert gemologist that describes the key characteristics of a certified diamond. A certificate from a gemological laboratory such as the IGI verifies the quality of a loose diamond and allows non-experts to make educated buying decisions.
The International Gemological Institute (IGI)
Established in 1975, the International Gemological Institute (IGI) is the largest independent gemological laboratory in the world, with locations in all major diamond trade cities. The IGI’s mission is to provide the industry’s professionals and consumers with accurate, reliable expertise through education programs and through diamond and fine jewelry certification.
All IGI certified diamonds are scientifically analyzed by several gemologists, who combine their experience with state-of-the-art equipment to produce precise descriptions of the characteristics of diamonds and their cut quality.
A loose diamond’s carat weight is determined using carefully calibrated scales. The diamond’s physical measurements are also taken. Then, the diamond’s clarity is assigned by an expert gemologist using a special scope and a 10x magnification loupe. Clarity is determined on a scale ranging from IF (internally flawless) to I3 (imperfect or heavily included). The stone’s characteristics are plotted on a diamond diagram. The color of an IGI certified diamond is based on a scale ranging from D (colorless) to Z (yellow) by comparing it to master stones of predetermined color. The amount of fluorescence in the diamond is noted on a scale from None to Strong. A diamond’s finish includes such factors as polish, symmetry, and proportions. Assigned a grade from Excellent to Poor, polish and symmetry are evaluated based on the quality of the polish and the precision of the cutting details. Proportions are evaluated based on the execution of the cutter’s design, rating factors such as table diameter, crown height, pavilion depth, girdle thickness, and culet size, and is assigned a grade from Excellent to Poor.
The IGI Diamond Report contains a detailed analysis of the certified diamond’s characteristics, including carat weight, color, clarity, polish and symmetry, and proportions. A diamond diagram with plotted clarity characteristics is also included.
The IGI Diamond ID is a passport-sized document that contains the same detailed information as the Diamond Report, without the plotted diagram. This report is also available in a more compact credit card size.
