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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Violet
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White
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Yellow
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Single |
Pairs |
Lots |
Faceted |
Cabochons |
1.58ct Blue Star Sapphire, Oval, Opaque
7.2 x 5.2 mm
$ 32.88
2.44ct Blue Star Sapphire, Oval, Opaque
8 x 6 mm (calibrated)
$ 55.89
3.21ctw Blue Star Sapphire, Oval, Opaque
7.3 x 5.4 mm
$ 61.28
3.29ctw Blue Star Sapphire, Oval, Opaque
7.2 x 5.2 mm
$ 108.13
2.50ctw Blue Star Sapphire, Oval, Opaque
7 x 5 mm (calibrated)
$ 54.78
1.36ct Blue Star Sapphire, Oval, Opaque
8 x 6 mm (calibrated)
$ 45.15
4.39ctw Blue Star Sapphire, Oval, Opaque
7 x 5 mm (calibrated)
$ 86.57
4.18ctw Blue Star Sapphire, Oval, Opaque
7 x 5 mm (calibrated)
$ 82.43
1.38ct Blue Star Sapphire, Oval, Opaque
7.2 x 5.3 mm
$ 31.61
5.13ctw Blue Star Sapphire, Oval, Opaque
7 x 5 mm (calibrated)
$ 101.16
3.82ctw Blue Star Sapphire, Oval, Opaque
7 x 5 mm (calibrated)
$ 75.34
3.65ctw Blue Star Sapphire, Oval, Opaque
7 x 5 mm (calibrated)
$ 79.98
3.39ctw Blue Star Sapphire, Oval, Opaque
7 x 5 mm (calibrated)
$ 74.29
4.60ctw Blue Star Sapphire, Oval, Opaque
7 x 5 mm (calibrated)
$ 90.72
6.11ctw Blue Star Sapphire, Oval, Opaque
7 x 5 mm (calibrated)
$ 111.57
1.52ct Blue Star Sapphire, Oval, Opaque
7.3 x 5.3 mm
$ 34.82
3.34ctw Blue Star Sapphire, Oval, Opaque
7 x 5 mm (calibrated)
$ 65.87
4.68ctw Blue Star Sapphire, Oval, Opaque
7.1 x 5.3 mm
$ 102.55
4.85ctw Blue Star Sapphire, Oval, Opaque
7 x 5 mm (calibrated)
$ 106.27
3.06ct Blue Star Sapphire, Oval, Opaque
9 x 7 mm (calibrated)
$ 70.10
1.49ct Blue Star Sapphire, Oval, Opaque
7.1 x 5.3 mm
$ 34.13
4.34ctw Blue Star Sapphire, Oval, Opaque
7 x 5 mm (calibrated)
$ 95.10
1.15ct Blue Star Sapphire, Oval, Opaque
7 x 5 mm (calibrated)
$ 38.18
1.58ct Blue Star Sapphire, Oval, Opaque
6.9 x 5.3 mm
$ 32.88
Why Buy Blue Star Sapphires from GemSelect?
- Trusted Worldwide Since 2003
- Supplying natural gemstones to jewelers and collectors in 120+ countries
- Verified natural gemstones
- View All GemSelect Reviews on Bizrate
- Secure checkout and insured worldwide delivery
- 30-day returns and satisfaction guarantee
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 -> 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.
Overall Rating -> 10
My experience was done with ease
Overall Rating -> 10
It was all good
Overall Rating -> 10
Wonderful purchase, can't wait to see the stone.
Overall Rating -> 10
On the clarity options it goes "and better" so if youre looking for si specifically and you click si and better it still shows you basically everything. It just removes the opaques. Itd be nice if it was vs only, vss only, si only, etc
Overall Rating -> 10
My current project is something BLUE . Opal earrings with matching tennis bracelet for her wedding. The opals and sixty two sapphires VVS & VS are AMAZINGLY BEAUTIFUL. The private jewelers were impressed by the clarity and inclusion free of the sapphires . I want to say thank you for the High quality sapphires that I purchased for my daughtera's wedding.
