Sapphire

Practical tips on Sapphire Facet. Covers Sapphire Faceting related issues, news, research, tips, and guide. Includes helpful details about the...

Tips and details about Ruby Sapphire faceting. Brief and straightforward information on Ruby Sapphire Faceting. Choose cuts that best fit...

With rich cornflower blue Yogo sapphires and fancy-colored gems in any color of the rainbow, Montana sapphires are a great...

Get the insight of Jeff on all your concerns about Gemstones. "Are all Sapphires blue?". Check out the Umba Sapphire...

Up to date information on Padparadschah Sapphire faceting. Includes helpful information like tips, guides and details related to Padparadschah Sapphire...

Teal sapphires feature blue and green colors in a beautiful combination. Learn all about these gems and why they might...

Mermaid sapphires are the rarest type of teal sapphires. Learn all about these blue-green gems that could soon become popular...

Explore the remarkable evolution of sapphire role beyond jewelry in this informative article. Discover how sapphire's exceptional properties have made...

Long associated with royalty, sapphires are some of the most popular (and expensive) gems in the world. Our sapphire buying...

Learn how lab grown sapphires are made and how gemologists can distinguish natural from synthetic sapphires.

Color Change Sapphire is unique and change different colors with different lighting view. This is a source on guides for...

Rare, beautiful, and expensive, sapphires will really wow when brides need “something blue.” When you’re shopping for sapphire engagement ring...

Silk inclusions in sapphires are hard to detect. Learn to pick the best orientation and cut for these gems. You...

Why do gemology labs sometimes have different gem origin opinions, especially for sapphires? Learn the science and history behind the...

There are many ways to grow ruby and sapphire in a lab. However, determining the best synthetic corundum for faceting...

Appraising blue sapphires is a critical skill for any jeweler or gemologist. Learn the basics you’ll need to evaluate one...

Successful tips and guide on Faceting Designs. A Faceting Design Diagram by Jeff R. Graham that presents various cuts, this...

Beautiful blue colors and the star stone effect have influenced sapphire symbolism through the ages. Learn more about the legends...

What qualities should you look for when padparadscha sapphire buying? Learn about the sunset colors and other properties of these...

Do white sapphires make good alternatives to diamonds? Compare their qualities and learn how to choose the right engagement ring...

The best rough sapphire stones may come from different sources, depending on the color you want. However, valuable blues may...

Parti sapphires can show two or three colors at the same time. Learn why recent trends will soon make these...

Discover how ancient wisdom and modern science transform ordinary sapphires into extraordinary gems through four powerful enhancement techniques that may...

How do gemologists distinguish between rubies and pink sapphires? Learn about the chemistry of corundum and the history of the...

Emerald, ruby, sapphire, and diamond are the most popular choices for classic engagement ring stones. Learn more about these traditional...

Polishing sapphire gemstones can be tough on laps. Learn the pros and cons of different laps and some techniques to...

The geological conditions in which rubies and sapphires form are rare and extreme. Learn how these popular gems develop and...

Watch lapidarist Jim Buday facet a step-cut Montana sapphire design. This version of the traditional cut produces a very bright...

In a recent interview, Jeffery Bergman talks about his decades-long career as a sapphire expert and connoisseur and offers his...

Large, beautiful, and historically important, these eight famous sapphires have fascinating stories to tell. Learn what makes them so special....

Our survey asked for your input on the age-old question: where is the line between ruby and sapphire? The results...

Spinel has played an important part in gem history. Prior to the last century, it was impossible to distinguish from...

Corundum gems receive more types of treatments than any other stones. Learn how to test rubies and sapphires for signs...

The corundum gem family includes ever popular rubies and sapphires. Our IGS member survey results offer some corundum polishing recommendations....

Curved striae or lines are a telltale sign of synthetic ruby and sapphire. If you're having trouble seeing them, here...

Information and guide on Faceting Designs. A Faceting Design Diagram by Jeff R. Graham that presents various cuts, this cut...

Ruby and sapphire origins greatly affect the values of these prized gems. Learn where these stones occur and how inclusions...

What’s sapphire mining like? Follow Jeff Moriarty of Moriarty’s Gem Art as he travels to Montana in search of amazing...

Cutting corundum gems — rubies and sapphires — can be difficult. Learn how to handle this material by faceting a...

What ruby and sapphire grading tools does a novice gemologist need? Learn how basic gemological equipment can help you identify...

Discover the history of the Verneuil method, the pioneering technique that revolutionized the production of lab-grown rubies and sapphires, making...

Learn how to spot diffusion treated gems with a simple immersion test. This common treatment for sapphire can significantly reduce...

Explore 13 beautiful purple gemstones for every budget and style. Learn about amethyst, tanzanite, purple sapphire, and rare purple varieties...

Discover America's best gem hunting locations where you can unearth emeralds, diamonds, sapphires and more! Plan your gemology vacation with...

In Exodus, the breastplate of Aaron was said to hold 12 gems. Discover the historical debate around it and learn...

Learn which gemstones are the best investments for long-term value. Explore diamonds, sapphires, rubies, emeralds, and pearls that retain worth...

Jeff R Graham shares his opinions and thoughts on various topics on Just Ask Jeff. See what his answers are...

What is the birthstone for September? The birthstone for September is sapphire. Sapphires are members of the gem species corundum....