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  • 4Cs EDUCATION
    • 4Cs OF DIAMOND QUALITY
    • DIAMOND COLOR
    • WHAT IS DIAMOND CLARITY?
    • DIAMOND CUT
    • DIAMOND CARAT WEIGHT
  • DIAMOND BUYING GUIDE
    • HOW TO BUY A DIAMOND
    • SELECTING AN ENGAGEMENT RING
    • CARING FOR YOUR DIAMOND
    • INSURANCE AND APPRAISAL
    • WHERE DIAMONDS COME FROM
    • DIAMOND FLUORESCENCE
    • DIAMOND TREATMENTS
    • DIAMOND SIMULANTS
    • LABORATORY-GROWN DIAMONDS
  • GIA GRADING & REPORTS
    • GIA GRADING
    • WHY ASK FOR A GRADING REPORT?
    • HOW TO GET A GIA DIAMOND GRADING REPORT
    • GRADING THE 4Cs
    • DIAMOND GRADING REPORTS
    • DIAMOND ORIGIN REPORT
    • COLORED DIAMOND REPORTS
    • LGDR by GIA — Laboratory-Grown Diamond Reports
    • COLORED GEMSTONE AND PEARL REPORTS
  • ABOUT GIA
  • 4Cs BLOG
Diamond Carat
A 1.01 ct old European cut diamond with a halo of 0.91 carats of diamonds.
  • Diamond Carat , The Diamond 4Cs

Nine Things About Diamond Carat Weight You Need to Know

May 17, 2018
If you’re shopping for an engagement ring, you need to know about carat weight – the measurement of how much …
Round brilliant cut diamond, 2.78 ct, D, IF.
  • Diamond Carat , Diamond Clarity , Diamond Color , Diamond Cut , The Diamond 4Cs

The History of the 4Cs of Diamond Quality

October 17, 2017
The 4Cs – One Man’s Brainchild The term 4Cs we know today had its start in the early 1940s, as the …
Cushion cut diamond and platinum engagement ring surrounded by a halo of melee and natural pink diamonds
  • Diamond Carat , Diamond Costs/Pricing , GIA Grading & Reports

GIA Diamond Grading Reports: Understanding Carat Weight

May 09, 2017
If you’re shopping for a diamond, carat weight is probably one of the important things you’re considering. It seems like …
  • Diamond Carat , The Diamond 4Cs

4Cs Q&A with GIA: Diamond Carat Weight

August 12, 2013
GIA’s 4Cs Q&A series continues with a careful consideration of carat weight. …
  • Diamond Carat , The Diamond 4Cs

Diamond Carat: A Measurement of Diamond Weight

March 28, 2013
When buying a diamond, it is important to understand what diamond carat weight is and how the weight of a …
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HOW TO CHOOSE A DIAMOND
Learn about the 4Cs and how to choose a diamond.

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