Star Sapphire Value, Price, and Jewelry Information
Star sapphire is a type of sapphire that displays asterism, a star-like optical effect.
By International Gem Society, updated on
Start an IGS Membership today
for full access to our price guide (updated monthly).Star Sapphire Value
See our article called Phenomenal Gems to read more about the grading and valuation of stones with asterism.
Star Sapphire is a type of sapphire displaying an optical star-like effect. This effect is caused by asterism. You can read more about asterism in our Phenomenal Gems article.
International Gem Society
Related Articles
Ruby and Sapphire Origins
Ruby and sapphire origins greatly affect the values of these prized gems. Learn where these stones occur and how inclusions...
Read More
Why We Love Montana Sapphires and Yogo Sapphires
With rich cornflower blue Yogo sapphires and fancy-colored gems in any color of the rainbow, Montana sapphires are a great...
Read More
Cutting Star Gemstones: Tips for Beginners
Want to start cutting beautiful star gemstones? Here are some helpful gemological resources for novice lapidaries and jewelers.
Read More
Black Diamond Value, Price, and Jewelry Information
Black is a color that can say a lot. Wearing black diamond jewelry communicates a sense of unique strength and...
Read More
Latest Articles
Rhodochrosite Value, Price, and Jewelry Information
Beautiful rose red to pink rhodochrosite crystals are popular with mineral collectors. Although very soft, opaque stones have been fashioned...
Read More
Ruby and Sapphire Survey: Where Do You Draw the Line?
Our survey asked for your input on the age-old question: where is the line between ruby and sapphire? The results...
Read More
Quartz Toxicity: Understanding the Risks for Jewelers and Wearers
Understand quartz toxicity: safe for jewelry wearers but potentially dangerous for makers. Learn about silica dust health risks, essential safety...
Read More
Synthetic Amethyst: What is it and How is it Made?
Discover how synthetic amethyst is created, its key differences from natural specimens, and expert methods of identification in this comprehensive...
Read More
Never Stop Learning
When you join the IGS community, you get trusted diamond & gemstone information when you need it.
Get Gemology Insights
Get started with the International Gem Society’s free guide to gemstone identification. Join our weekly newsletter & get a free copy of the Gem ID Checklist!