4 Cs of Diamond Buying

4 Cs of Diamond Buying

Buying a diamond? What do you need to know to be a savvy diamond shopper? It all starts with what is called the “4 Cs” of diamonds. Master the 4 Cs and you’ll be well on your way to choosing the best diamond for your budget.

 

GIA

This article refers to GIA throughout. GIA stands for the Gemological Institute of America. GIA is a nonprofit institution committed to protecting and educating the public in the field of gems and jewelry. GIA created the 4 Cs to describe the characteristics of a diamond and is an excellent resource to consumers. 

 

Cut

Diamond cut refers to the way a diamond is faceted and the way those facets reflect light, not the shape of the stone (round, princess, emerald, etc.) Cut is an important characteristic to consider when choosing a diamond and has the most impact on a diamond’s sparkle. A well-cut diamond will have more fire, brilliance, and will generally look larger. A poorly cut diamond will look, well, pretty much the opposite. 

Diamond cut is measured on a 5 range scale from excellent to poor. 

GIA Cut Scale


To learn more about diamond cut from GIA click here

 

Color

Diamond color is measured on a scare from D-Z, and actually measures the lack of color in a diamond.

GIA Color Scale

Colorless Diamonds - The Rarest, Highest Quality, 

D-F Range

Near Colorless Diamonds - No discernable color. Better Value.

G-J

Faint Color Diamonds - Budget-friendly. Looks great set in yellow gold.

K

Pro Tip: Color will be more visible in larger diamonds. Settings can also impact color. A white gold setting will make a diamond with more color look more yellow, or a colorless diamond look icier. A diamond with more color will often look better in a yellow gold setting. 

To learn more about diamond color from GIA click here

 

Clarity

Clarity measures the presence or absence of inclusions in the diamond. Inclusions are small imperfections in the diamond kind of like birthmarks. There are many different types of inclusions, but the good news is that most aren't visible to the naked eye. 

Pro Tip: Very slightly included and very very slightly included diamonds are often the best value, and inclusions in this range are almost always only seen under 10x magnification.

 

Diamond Clarity Scale

To learn more about diamond clarity from GIA click here

 

Carat Weight

Diamonds are measured by their weight, not the physical size of their dimensions, and a diamond's carat weight has the biggest effect on price. That being said, bigger is not always better when it comes to diamonds. A diamond's shape and cut play a big part in how large a diamond will look.

Pro Tips: Buy "shy." A 1.90 carat diamond will cost considerably less than a 2.00 carat diamond, and the size difference will be barely noticeable. Also, keep the ring size in mind when choosing a diamond. A diamond is going to look larger on a ring size 6 than a size 8. 

 

GIA Karat Weight Chart

To learn more about carat weight from GIA click here

 

Limitations of the 4 Cs

GIA Certification Example

Like snowflakes, each diamond is 100% unique. Because each diamond is unique, two diamonds that are graded the exact same will look slightly different. This is where buying a diamond in person becomes important. Being able to compare two or more similar diamonds can be an invaluable step in choosing the perfect diamond for your taste and budget. 

This is one of the biggest downsides to buying a diamond online, and the biggest upsides to buying in person. 

 

Conclusion

There is a ton of information out there about the 4 Cs. We've given you the basics that everyone should know before buying a diamond. If your curiosity is peaked click on the links to the GIA articles to go more in-depth on each "C". 

Our experienced team is always available to answer your questions. Store manager Lex Harrison is a GIA Graduate Gemologist, one of the most prestigious credentials in the jewelry industry, and is an excellent resource when choosing diamonds. Park City Jewelers has the experience and expertise to help you choose a diamond that will be cherished for a lifetime. 

 

 

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