Related Articles
Australian black opals - opal types
Eight Opal Types Explained

Opal is a complicated gemstone, and many factors affect its price. Learn how to distinguish these eight opal types and how they differ in value.

rose gold pave engagement ring - radiant-cut diamonds
Radiant-Cut Diamonds: Modern & Durable

Exceptionally sparkly, radiant-cut diamonds are great for engagement rings. But how can you find a top-quality gem? Read our tips for buying radiants here.

engagement ring side view - diamond girdles
Diamond Girdles: 11 Facts You Need to Know

Buying a diamond but unsure about the girdle? Learn everything you need to know about diamond girdles, including thickness ratings and girdle inscriptions.

ethiopian opal nodule - how do opals form
How Do Opals Form?

Curious about how opals form and show such stunning colors? Learn about the scientific theories behind opal formation and why some opals show a rainbow.

two-carat diamond with multi-band ring
Two-Carat Diamond Rings: Buying Top Quality

A two-carat diamond engagement ring is sure to turn heads. Learn how to choose a top-quality diamond in this size while staying in your budget.

Fluorite - gemstone cleavage
What is Gemstone Cleavage?

Gemstone cleavage is a break in a crystal along internal planes. Learn the science behind this and the difference between cleavage, fracture, and parting.

oval brilliant spessartite garnet - Mozambique
Spessartite Garnet Value, Price, and Jewelry Information

Everything you ever wanted to know about spessartite garnets. Find value guidelines, scientific data, expert comments, and more in our Gemstone Listings.

side-stone engagement ring - what carat diamond should I choose FI
What Carat Diamond Should I Choose?

Your budget, style, and expectations will impact the size diamond you choose for your jewelry. Read our guide to see what carat diamond works best for you.

heart-cut spessartine garnet and diamond pendant - garnet symbolism and legends
Garnet Symbolism

Garnet symbolism is rich and varied. This gemstone has inspired many legends and popular associations with love, friendship, light, and vitality.

0.49 cts stone, modern setting - marquise-cut diamonds
Marquise-Cut Diamonds: Vintage & Modern

A beautiful and versatile shape, marquise-cut diamonds are perfect for unique engagement rings. Learn how to pick the stone that’s best for you.