sapphire

How do you say “love me” with a stone? Learn about lapis lazuli symbolism and legends. This beautiful blue mineral...

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

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

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

This year we asked our members for their impressions of the Tucson show. Here are their impressions. A little insight...

A favorite color for nature-inspired designs, green gemstones never go out of style. Learn which of these 32 green gems...

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

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

Choosing a five-carat diamond isn't as simple as finding a diamond in a smaller size. Read our insider tips to...

In South Africa, illegal mining is being put to an end with the compromise between government and big businesses.

Can you create and cut a gem design to make the most of a stone's tilt brightness? Learn whether your...

With practice and some basic tools, anyone can separate natural rubies from ruby simulants. Learn all about the most common...

Learn how to cut star and cat's eye gems. Once you understand how asterism and chatoyancy work, you'll find unexpected...

Discover December birthstones: blue topaz, blue zircon, tanzanite, and turquoise. Explore their meanings, origins, and jewelry options in this guide!...

A guide for the price of various gemstones that is based on various sources for commonly traded goods. However, gems...

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

Our spinel engagement ring stone guide can help you learn about this beautiful, colorful, durable, but little-known gemstone.

Rounds dominate the gem market, but fancy gem cuts offer many beautiful options. Learn about the most popular fancy shapes,...

A Diamond Cut From Centuries Ago So, you like princess cut diamonds, do you? Well, you’re in great company. Some...

Choosing the best gemstone orientation for your rough takes skill and experience. Learn what factors you should take into account...

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

Just Ask Jeff: Carats vs. Grams? Which is best? Most people can count and are not going to pay more...

How can gem cutters predict the color that gem rough will likely show when cut? Learn how the simple white...

The faceting process turns rough stones into finished gems. Learn the steps custom faceters take to create unique gemstones that...

Jedi spinel makes a beautiful jewelry stone. Learn how it got its name and what qualities make this vivid pinkish...

Not sure what your gem is? Try these 13 at-home tests to spot a fake diamond — and learn what...

Expert lapidarist Jim Buday shares how he learned to cut gems and created his Reddit subgroup. Read about his new...

Looking for something besides the classic round white diamond? Our engagement ring guide will help you find the alternative gem...

How do you choose jewelry settings for your gems? Learn the pros and cons of pre-made settings, assembling findings, modifying...

Looking for an alternative to diamonds? A moss agate engagement ring makes a beautiful, affordable, and unconventional choice.

Gemstone treatments and synthetics are becoming more sophisticated. Learn about the advanced gemology equipment that gem labs use to stay...

A dichroscope can distinguish the colors of pleochroic gems. Learn how gem cutters can use this tool to choose the...

Identifying lab-created gems is a critical skill for gemologists. Learn how to spot the most common synthetic gemstone inclusions.

Combining stones can be more than adding diamond accents to colored gemstone jewelry. Explore colored stone combos and learn how...

Jewelry, is composed of precious metals and rare gems. Even in jewelry made for every day use, the components can...

What is Arizona black jade? Learn about this unusual opaque black gem material and follow this pendant carving demonstration by...

Judging gemstone value is complex, and new gemologists can have trouble with this. These four exercises can help you learn...

Just Ask Jeff : There seems to be a lot of questions out there about gemstone designs and designing. Here...

In Part 1 of “Faceting Made Easy,” Trevor Hannam reviews gemstone properties in his introduction to faceting and learning to...

Jeff R Graham shares his opinions, thoughts and suggestions on various topics in Just Ask Jeff. See what he has...

February 8, 2023 The British Crown Jewels with the Imperial State Crown center (1) and St. Edward's Crown (2) (Photo...

The 10X loupe is the gemologist's best friend. Learn how to examine gemstones for fractures, inclusions, color, and much more...

You'll find gem cutting acronyms like L/W in faceting guides. Learn what these frequently used terms mean and how they...

Identifying gemstone treatments is difficult even for experienced gemologists. Learn about the many different ways gem color and clarity are...

The color of a mineral or gemstone is one of the primary attributes used for identification,but it is, unfortunately, one...

On October 19, 2025, a brazen daylight raid at Paris’s Louvre Museum stunned the world: in well under 10 minutes,...

Our gemstone care guide covers many popular gems. Learn how best to maintain your gemstone jewelry and what kinds of...

Simple doesn’t mean boring. Here are six simple proposal ideas to help you create a low-key but special and memorable...