Blue Star Sapphire Gemstones
Shop natural blue star sapphire gemstones with unique star effects and rich blue color.
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Bi-color
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Black
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Blue Blue Star Sapphires
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Brown
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Golden
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Gray
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Green
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Multicolor
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Orange
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Pink
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Purple
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Red
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Turquoise
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White
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Single |
Pairs |
Lots |
Faceted |
Cabochons |
1.57ct Dark Blue Star Sapphire, Oval, Opaque
7.3 x 5.4 mm
$ 43.33
4.68ctw Deep Blue Star Sapphire, Oval, Opaque
7 x 5 mm (calibrated)
$ 123.55
1.95ct Navy Blue Star Sapphire, Oval, Opaque
8 x 6 mm (calibrated)
$ 53.82
3.45ctw Dark Blue Star Sapphire, Oval, Opaque
7 x 5 mm (calibrated)
$ 91.08
3.27ctw Deep Blue Star Sapphire, Oval, Opaque
7.3 x 5.4 mm
$ 90.25
4.71ctw Deep Blue Star Sapphire, Oval, Opaque
7 x 5 mm (calibrated)
$ 111.91
2.59ct Navy Blue Star Sapphire, Round, Opaque
7 mm (calibrated)
$ 64.96
1.23ct Deep Blue Star Sapphire, Oval, Opaque
6.9 x 4.6 mm
$ 48.71
2.76ct Navy Blue Star Sapphire, Oval, Opaque
9 x 7 mm (calibrated)
$ 63.48
3.80ctw Deep Blue Star Sapphire, Oval, Opaque
7 x 5 mm (calibrated)
$ 100.32
4.17ctw Deep Navy Blue Star Sapphire, Oval, Opaque
7 x 5 mm (calibrated)
$ 99.08
7.05ctw Deep Navy Blue Star Sapphire, Oval, Opaque
7 x 5 mm (calibrated)
$ 167.51
3.65ctw Deep Blue Star Sapphire, Oval, Opaque
7 x 5 mm (calibrated)
$ 96.36
4.68ctw Twilight Blue Star Sapphire, Oval, Opaque
7.1 x 5.3 mm
$ 123.55
3.34ctw Dark Blue Star Sapphire, Oval, Opaque
7 x 5 mm (calibrated)
$ 79.36
1.63ct Royal Blue Star Sapphire, Oval, Opaque
7.3 x 5.4 mm
$ 44.99
3.31ctw Deep Blue Star Sapphire, Oval, Opaque
7 x 5 mm (calibrated)
$ 87.38
4.38ctw Dark Blue Star Sapphire, Oval, Opaque
7 x 5 mm (calibrated)
$ 104.06
0.56ct Deep Navy Blue Star Sapphire, Oval, Opaque
5.2 x 4.3 mm
$ 22.40
3.01ctw Dark Blue Star Sapphire, Oval, Opaque
7 x 5 mm (calibrated)
$ 79.46
4.13ct Navy Blue Star Sapphire, Oval, Opaque
10 x 8 mm (calibrated)
$ 113.99
3.82ctw Dark Blue Star Sapphire, Oval, Opaque
7.1 x 5.2 mm
$ 90.77
4.90ctw Dark Blue Star Sapphire, Oval, Opaque
7 x 5 mm (calibrated)
$ 116.42
1.76ct Deep Blue Star Sapphire, Oval, Opaque
7 x 5 mm (calibrated)
$ 48.58
Why Buy Blue Star Sapphires from GemSelect?
- Trusted Worldwide Since 2003
- Supplying natural gemstones to jewelers and collectors in 120+ countries
- Verified natural gemstones
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- Secure checkout and insured worldwide delivery
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Natural Blue Star Sapphire
Our blue star sapphire gemstones are 100% natural and selected for their distinctive star effect, known as asterism. These rare gems display a visible star pattern under direct light, making them highly desirable for collectors and unique jewelry pieces.
Shop Star Sapphire Gemstones Online
Browse a wide range of blue star sapphire gemstones at GemSelect. Choose from different sizes, shapes, and clarity levels, all with detailed images and secure worldwide delivery.
Asterism in Star Sapphires
The star effect in blue star sapphire is caused by fine rutile inclusions that reflect light in a six-ray pattern. Strong, centered stars with sharp rays are considered the most valuable.
Star Sapphire Cabochons
Blue star sapphires are typically cut as cabochons to enhance the visibility of the star. These smooth, domed stones are ideal for rings, pendants, and statement jewelry designs.
Loose Blue Star Sapphire for Jewelry
Loose star sapphires offer flexibility for custom jewelry. Their durability and unique optical effect make them excellent choices for rings, bracelets, and collector pieces.
Color and Quality Factors
The finest blue star sapphire gemstones feature deep blue color, a well-defined star, and good translucency. Balance between color and star visibility is key when selecting a high-quality stone.
Wholesale Star Sapphire Stones
We offer competitive pricing on loose blue star sapphire gemstones for jewelers and collectors. Bulk options are available with consistent quality and full disclosure of any treatments.
Learn more about sapphire varieties, properties, and care on our Sapphire Information Page.
FAQs
What is a blue star sapphire?
A blue star sapphire is a variety of sapphire that displays a star-shaped light effect called asterism, visible when viewed under direct light.
What causes the star effect in star sapphires?
The star effect is caused by needle-like rutile inclusions inside the gemstone, which reflect light in a six-ray pattern.
Are blue star sapphires natural?
Yes, natural star sapphires occur in nature. At GemSelect, all treatments, if any, are fully disclosed for transparency.
Why are star sapphires cut as cabochons?
Cabochon cutting enhances the visibility of the star effect, allowing the light to reflect properly and display the asterism clearly.
How do I evaluate a blue star sapphire?
Look for a sharp, centered star, attractive blue color, and good translucency. The star should be visible and move smoothly across the surface.
Are blue star sapphires suitable for everyday jewelry?
Yes, with a Mohs hardness of 9, star sapphires are durable and suitable for daily wear, especially in protective settings.
Can I buy star sapphire gemstones in bulk?
Yes, GemSelect offers wholesale star sapphire options for jewelers and collectors with competitive pricing.
GemSelect Certified Store Reviews
GemSelect: Over 22 Years in the Gemstone Business! Thank you for trusting us with your purchase!
Overall Rating -> 9 
They have literally everything on this website! The prices are also pretty good, I was able to find plenty of nice stones that I could afford!
Overall Rating -> 10 
All good
Overall Rating -> 9
Very good and simple exchange
Overall Rating -> 10
Great experience. I can't wait to explore on the website further.
Overall Rating -> 10
I have shopped at Gemselect for nearly 20 years. I especially like that you see pictures of the exact gem you are purchasing. You are a trusted source.
Overall Rating -> 10
All items were delivered on time with all items meeting or exceeding my expectations. Cut, clarity and color were very close to the photos and description.
