Star Sapphire
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Physical & Optical Properties
Category
Precious Gems
Mohs Hardness
9.0
Specific Gravity
3.9 – 4.05
Refractive Index
1.758 – 1.78
Crystal System
Trigonal
Color
blue
Birefringence
0.007
Mohs Hardness
| Mohs | Reference mineral | Star Sapphire |
|---|---|---|
| 1 | Talc | |
| 2 | Gypsum | |
| 3 | Calcite | |
| 4 | Fluorite | |
| 5 | Apatite | |
| 6 | Orthoclase | |
| 7 | Quartz | |
| 8 | Topaz | |
| 9 | Corundum | ● |
| 10 | Diamond |
Crystal System
Value & Market
Price Tier
Investment ($5,000+/ct)
Where to Buy Star Sapphire
Blue Nile
Fine jewelry retailer
James Allen
Gemstone jewelry
Brilliant Earth
Ethically sourced gems
Amazon
Wide selection
Links may earn a commission at no extra cost to you.
About Star Sapphire
星光蓝宝石是一种含有排列规则的针状金红石包裹体的蓝宝石，素面切割后能呈现六射星芒效应。最著名的星光蓝宝石包括重达563克拉的"星光之星"（藏于美国自然历史博物馆）和重达330克拉的"亚洲之星"，均为举世瞩目的宝石珍品。产地包括斯里兰卡、缅甸、澳大利亚和泰国，优质星光蓝宝石在宝石市场上极具收藏价值。
On this page
Jewelry Use
Durability
10/10
Suitable for daily wear
Science FYI Family
Frequently Asked Questions
What is Star Sapphire?
星光蓝宝石是一种含有排列规则的针状金红石包裹体的蓝宝石，素面切割后能呈现六射星芒效应。最著名的星光蓝宝石包括重达563克拉的"星光之星"（藏于美国自然历史博物馆）和重达330克拉的"亚洲之星"，均为举世瞩目的宝石珍品。产地包括斯里兰卡、缅甸、澳大利亚和泰国，优质星光蓝宝石在宝石市场上极具收藏价值。
What is the hardness of Star Sapphire?
Star Sapphire has a Mohs hardness of 9.0, making it excellent for use in jewelry.
What color is Star Sapphire?
Star Sapphire is primarily Blue.
How much does Star Sapphire cost?
Star Sapphire falls into the Investment ($5,000+/ct) price range. Prices vary based on color, clarity, cut, and origin.
What is the crystal system of Star Sapphire?
Star Sapphire belongs to the Trigonal crystal system.