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round brilliant - diamond cost
The Fifth C: What Determines Diamond Cost?

What does a diamond cost? When consumers think of diamonds, they think “expensive.” However, what exactly makes that so? Beyond the unavoidable factors of mining, cutting, grading, and setting, who or what determines diamond prices?

diamond with crystal inclusion - diamond clarity
Diamond Buying and the 4 Cs, Part 4: Assessing Diamond Clarity

Diamond buyers often find assessing clarity challenging. Although clarity factors may be difficult to see and identity, they can have a significant impact on a stone’s value, appearance, and even structural integrity. Learn what determines diamond clarity and how professionals grade this property.

diamond color - U to V color range stone
Diamond Buying and the Four Cs, Part 2: Diamond Color

Diamond buyers often want to know which of the Four Cs of gem grading is most important — color, clarity, cut, or carat. However, these qualities aren’t as distinct as they seem. Learn more about diamond color and how it affects the other qualities as well as overall value.

diamond carat weight - Cullinan diamonds
Diamond Buying and the Four Cs, Part 1: Diamond Carat Weight

Diamond buyers often want to know which of the Four Cs of gem grading is most important — color, clarity, cut, or carat. However, these qualities aren’t as distinct as they seem. Learn more about diamond carat weight and how it affects the other qualities as well as overall value.

Esquel meteorite - a world of crystals
A World of Crystals

We live in a world of crystals. You don’t have to dig deep into the Earth to find them. Even the bones in our bodies and the dust in the air contain them. Learn more about crystalline minerals and gemstones as well as the crystals that grow in living beings.

fancy colored pink diamond buying guide - 1.2ct fancy purplish pink
Fancy Colored Pink Diamond Buying Guide

With only a few produced each year, pink diamonds are among the rarest gems on the planet. Learn how quality impacts cost for these rarities in our fancy colored pink diamond buying guide.

fancy colored blue diamond buying - Jane Seymour
Fancy Colored Blue Diamond Buying Guide

Blue diamonds are among the rarest and most prized diamonds. Our blue diamond buying guide will help consumers understand the value factors for these gems.

sardonyx - birthstone gemology
How Well Do You Know Your Birthstone Gemology?

How well do you know your birthstone gemology? Take our short quiz and learn about the composition, cutting, and value of birthstones.

princess cut - engagement ring
What is a Princess Cut Diamond?

What constitutes a princess cut? Jeff Graham examines a variety of diamonds sold as examples of this design and identifies their overall characteristics.

fancy-colored yellow diamond buying - Diamond_3.75-Emerald-Fancy-Yellow-Ruby
Fancy Colored Yellow Diamond Buying Guide

Fancy colored yellow diamonds are becoming increasingly popular. Our yellow diamond buying guide has the information you need before your next purchase.

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