Search results for: sapphire - Page 3 | International Gem Society

The Power of Advertising: How the Marketing Juggernaut Behind the Barbie Movie Rocked the Gem World

©Canva. Used with permission. On July 21, 2023, the world got its first look at the long-anticipated movie Barbie. Fans...

20 Best Mother’s Day Jewelry Gift Ideas for 2025

What comes to mind when you think about your mother? For many of us, memories of love, good times and...

Common Books About Stones and Faceting

Jeff R Graham shares his opinions and thoughts on various topics in Just Ask Jeff. See some books about stones...

How to Modify a Powder Scale for Specific Gravity Testing

Learn how to modify a powder scale for specific gravity testing. A handmade wire basket will make this easy-to-use scale...

Gram Wagon Wheel Gem Design

Can an apex crown improve a gem's tilt brightness? See how a gram wagon wheel gem design will affect your...

Barion Cut Designs for Colored Gemstones

Barion cut designs aren't just for diamonds. Jeff Graham offers some advice for faceting this style as well as choosing...

Perspective on the Gem Rough Market

Jeff R Graham shares his opinions on the gem rough market. Read more on some very important perspective to be...

Before and After: Pictures of Repaired and Recut Gems

Take a look at these before-and-after pics of repaired and recut gems and learn how a great lapidary can improve...

Understanding Gem Synthetics, Treatments, And Imitations, Part 4: Synthetic Gemstone Guide

Many varieties of gems besides diamond can be created in the laboratory. Our synthetic gemstone guide covers many examples and...

Color Filters: Uses and Limitations for Gemology

A set of color filters can be helpful in the field and in the lab. Learn the limitations and uses...

Test Taking Tips and Strategies

Learn these quick and simple test taking tips and strategies to help you on your next gemology test.

Are Rubies Expensive?

How much are rubies worth? The best rubies are some of the most expensive colored gemstones on the market. One...

Appraising Rubies

Appraising rubies is a skill every jeweler and gemologist needs to master. Learn about the different quality factors that can...

Glitter Drop: Faceting Design Diagram

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

Spokes: Faceting Design Diagram

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

Aztec Sun: Faceting Design Diagram

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

Atlas: Faceting Design Diagram

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

Flex Cushion : Faceting Design Diagram

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

Tri-Angled Triangle: Faceting Design Diagram

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

Quickie: Faceting Design Diagram

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

Line Point Triangle: Faceting Design Diagram

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

Cut Corner Pent: Faceting Design Diagram

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

Mixed up Square : Faceting Design Diagram

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

N-Star: Faceting Design Diagram

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

Kilter: Faceting Design Diagram

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

Little Mo: Faceting Design Diagram

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

Raja’s 1st: Faceting Design Diagram

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

Flat Eye: Faceting Design Diagram

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

Diamond Oval: Faceting Design Diagram

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

Sapphire: Raw stone. Help! Advice needed from trimming to sale

...r having me & TIA for your help I'm looking for a deeper understanding on all aspects regarding raw sapphire. Basic stone details; Unassessed, Raw, Untreated. Ranging from 1 to 45ct Color spectrum from orange...

sapphire with inclusions of mic

Hello Miss, Sir I would like to contact you to request information regarding a sapphire that I own. It is an opaque sapphire that I bought in a flea market in Paris with a weight of 6900...

Montana Sapphire vs Australian Sapphire — How Do They Differ?

...t Navneet Gems are hoping to learn from the community's experience with both Australian and Montana sapphires. We'd love to hear your thoughts on the similarities and differences between the two origins. A fe...

Montana Sapphires

Hello IGS Community, I wanted to make a quick post showing how these sapphires from the Treasure State (Montana) turned out. Here I have these Montana sapphires that I received...

44.07 ct Milky Grey Star Sapphire

...y The most comparable I could find this color , origin, weight , grading of star was on the natural sapphire company website . I found a 50 ct very similar to this one that I just got . It was priced out at 3...

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