Please ensure Javascript is enabled for purposes of website accessibility.
Search
Search
Search

GIA 4Cs Diamond Blog

GIA 4Cs Diamond Blog

GIA Holiday Shopping Guide: Buying the Right Diamond Shape

A diamond’s shape is often the very first consideration when selecting a piece of diamond jewelry. It’s quite clear why: each shape has its own attributes and offers a different aesthetic. Because of the wide variety of diamond shapes available, it’s important to zero in on the shape that works best for you. Today’s installment of GIA’s holiday buying guide series offer a few tips to help you pick the perfect diamond shape.   (more…)

Diamonds Shape by Shape

When buying a diamond, you know how important the 4Cs are in defining diamond quality. But well before buying comes dreaming. And when you envision the perfect diamond you’ll own one day, chances are the first thing that comes to mind is its shape. (more…)

Diamond Anatomy, Explained

When you’re shopping for a diamond, its brightness and sparkle will draw you to the jewelry counter, and keep you captivated long after you’ve made your diamond purchase. Achieving maximum brightness and sparkle requires excellent cutting technique, which is reflected in the diamond’s cut grade. Of the 4Cs, no other ‘C’ has more impact on a diamond’s appearance. (more…)

Mouawad Dynasty Diamond
Understanding the 4Cs of Diamond Quality

GIA created the 4Cs (Color, Clarity, Cut and Carat Weight) as a universal method for establishing how to check diamond quality anywhere in the world. The 4Cs means two very important things: diamond quality can be communicated in a universal language, and diamond-buying consumers can know exactly what they are about to purchase.

(more…)

solitaire engagement ring
Holiday Guide, Part 4: Key Questions for Buying a Diamond

For many, jewelry shopping can be an intimidating experience. Add crowded malls, a long list of gifts to purchase, and the desire to get ‘just the right thing,’ and it can be downright stressful. But knowing what to ask a jeweler can help make this a great shopping experience

In part 4 of our 2013 Holiday Buying Guide, GIA put together the top five questions to ask a jeweler when you’re shopping for jewelry this holiday season.

(more…)
Video: History of the 4Cs

The 4Cs – color, clarity, cut, and carat weight – describe a diamond’s appearance, define its quality, and greatly influence a diamond’s value. But did you know that before GIA established the 4Cs in the 1940s, there was no agreed-upon system by which diamond quality could be communicated? (more…)

Studying Synthetic Diamonds

Synthetic diamonds grown in a lab are virtually identical to natural diamonds, but that’s where the similarities end. In fact, there are two distinctive methods used to grow synthetic diamonds(more…)

4Cs Q&A with GIA: More on Diamonds

GIA’s 4Cs Q&A series wraps up with some bonus information on fluorescence, while passing along a few friendly words of advice. (more…)

Diamond Clarity: The absence of inclusions and blemishes

No diamonds are entirely without inclusions or blemishes, and these characteristics help gemologists accurately determine natural diamond clarity. (more…)

Diamond Color: The Absence of Color

Last week, we gave a broad overview of the 4Cs. Today, we discuss how to evaluate diamond color. Did you know most diamonds are not truly colorless and contain subtle hints of yellow or brown? (more…)

GIA Diamond Grading Scales: The Universal Measure of Quality

The prospect of purchasing a diamond may seem daunting, but through GIA, an unbiased authority on diamonds, you have several handy resources to help you select the highest quality diamond. First up, an overview of the 4Cs: Color, Clarity, Cut, and Carat Weight. (more…)

Interactive Diamond Tool Now Available for Android

Owners of Android phones and tablets like the Kindle Fire and Samsung Galaxy can now benefit from GIA’s (Gemological Institute of America) free interactive diamond app for consumers and retailers, available in both English and Simplified Chinese. The app engages consumers with interactive features, video content and information on the GIA-created 4Cs (Color, Clarity, Cut and Carat Weight) of diamond quality. (more…)