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Loose Star Ruby – Natural 6-Ray Star Rubies for Gemstone Collectors and Jewellers

Loose Star Ruby – Natural 6-Ray Star Rubies for Gemstone Collectors and Jewellers

Explore our curated selection of loose star ruby gemstones, perfect for both gemstone collectors and jewelry enthusiasts. Each star ruby loose gem boasts the mesmerizing star effect, also known as asterism. From natural star ruby to unheated star ruby varieties, our collection highlights the unique beauty of these asterism gemstones. Discover the timeless allure of Burmese star rubies and more in our comprehensive range today.

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11.13ct Natural Medium-Dark Purple Star Ruby, Oval, Opaque, Photo A

11.13ct Natural Medium-Dark Purple Star Ruby, Oval, Opaque

Star Ruby

11.13ct1 pc
$ 176.30
14.3 x 10.6 mm
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6.44ct Natural Medium-Dark Purple Star Ruby, Round, Opaque, Photo A

6.44ct Natural Medium-Dark Purple Star Ruby, Round, Opaque

Star Ruby

6.44ct1 pc
$ 102.01
10 mm (calibrated)
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5.68ct Natural Reddish Purple Star Ruby, Oval, Opaque, Photo A

5.68ct Natural Reddish Purple Star Ruby, Oval, Opaque

Star Ruby

5.68ct1 pc
$ 89.98
10.5 x 9 mm
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35.80ct Natural Reddish Purple Star Ruby, Oval, Opaque, Photo A
Star Ruby Product Video (522234)

35.80ct Natural Reddish Purple Star Ruby, Oval, Opaque

Star Ruby

35.80ct1 pc
$ 567.07
19.4 x 16.9 mm
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31.80ct Natural Medium-Light Purple Star Ruby, Oval, Opaque, Photo A
Star Ruby Product Video (521457)

31.80ct Natural Medium-Light Purple Star Ruby, Oval, Opaque

Star Ruby

31.80ct1 pc
$ 503.71
20.7 x 19.5 mm
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3.12ct Natural Jam Red Star Ruby, Round, Opaque, Photo A

3.12ct Natural Jam Red Star Ruby, Round, Opaque

Star Ruby

3.12ct1 pc
$ 59.90
8 mm (calibrated)
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25.25ct Natural Deep Purple Star Ruby, Oval, Opaque, Photo A

25.25ct Natural Deep Purple Star Ruby, Oval, Opaque

Star Ruby

25.25ct1 pc
$ 333.30
17.9 x 14.8 mm
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8.43ct Natural Reddish Purple Star Ruby, Oval, Opaque, Photo A

8.43ct Natural Reddish Purple Star Ruby, Oval, Opaque

Star Ruby

8.43ct1 pc
$ 133.54
13 x 11 mm (calibrated)
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3.83ct Natural Pinkish Red Star Ruby, Oval, Opaque, Photo A

3.83ct Natural Pinkish Red Star Ruby, Oval, Opaque

Star Ruby

3.83ct1 pc
$ 73.54
9 x 7.5 mm
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5.39ct Natural Medium Red Star Ruby, Oval, Opaque, Photo A

5.39ct Natural Medium Red Star Ruby, Oval, Opaque

Star Ruby

5.39ct1 pc
$ 103.49
10.1 x 8.7 mm
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5.69ct Natural Medium Dark-Purple Star Ruby, Oval, Opaque, Photo A

5.69ct Natural Medium Dark-Purple Star Ruby, Oval, Opaque

Star Ruby

5.69ct1 pc
$ 316.59
12 x 10 mm (calibrated)
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6.14ct Natural Deep Red Star Ruby, Oval, Opaque, Photo A

6.14ct Natural Deep Red Star Ruby, Oval, Opaque

Star Ruby

6.14ct1 pc
$ 113.47
11.8 x 8.9 mm
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5.24ct Natural Reddish Purple Star Ruby, Oval, Opaque, Photo A

5.24ct Natural Reddish Purple Star Ruby, Oval, Opaque

Star Ruby

5.24ct1 pc
$ 83.00
11 x 8.6 mm
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5.04ct Natural Grayish Magenta Star Ruby, Oval, Opaque, Photo A

5.04ct Natural Grayish Magenta Star Ruby, Oval, Opaque

Star Ruby

5.04ct1 pc
$ 96.77
9.4 x 8.5 mm
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22.76ct Natural Grayish Magenta Star Ruby, Oval, Opaque, Photo A

22.76ct Natural Grayish Magenta Star Ruby, Oval, Opaque

Star Ruby

22.76ct1 pc
$ 360.52
17.9 x 15.4 mm
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10.98ct Natural Plum Purple Star Ruby, Oval, Opaque, Photo A

10.98ct Natural Plum Purple Star Ruby, Oval, Opaque

Star Ruby

10.98ct1 pc
$ 173.93
12.8 x 11.3 mm
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11.57ct Natural Dark Purple Star Ruby, Oval, Opaque, Photo A

11.57ct Natural Dark Purple Star Ruby, Oval, Opaque

Star Ruby

11.57ct1 pc
$ 183.26
13.6 x 11.5 mm
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15.26ct Natural Grayish Magenta Star Ruby, Oval, Opaque, Photo A

15.26ct Natural Grayish Magenta Star Ruby, Oval, Opaque

Star Ruby

15.26ct1 pc
$ 241.72
16.2 x 13.4 mm
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13.63ct Natural Medium Purple Star Ruby, Oval, Opaque, Photo A

13.63ct Natural Medium Purple Star Ruby, Oval, Opaque

Star Ruby

13.63ct1 pc
$ 215.90
14.6 x 12 mm
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4.29ct Natural Jam Red Star Ruby, Pear Shape, Opaque, Photo A

4.29ct Natural Jam Red Star Ruby, Pear Shape, Opaque

Star Ruby

4.29ct1 pc
$ 82.37
8.7 x 7.8 mm
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11.42ct Natural Medium-Dark Purple Star Ruby, Oval, Opaque, Photo A
Star Ruby Product Video (523435)

11.42ct Natural Medium-Dark Purple Star Ruby, Oval, Opaque

Star Ruby

11.42ct1 pc
$ 180.89
13 x 10.6 mm
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14.20ct Natural Grayish Magenta Star Ruby, Oval, Opaque, Photo A

14.20ct Natural Grayish Magenta Star Ruby, Oval, Opaque

Star Ruby

14.20ct1 pc
$ 224.93
15.8 x 13.3 mm
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17.03ct Natural Medium Purple Star Ruby, Oval, Opaque, Photo A

17.03ct Natural Medium Purple Star Ruby, Oval, Opaque

Star Ruby

17.03ct1 pc
$ 269.76
16.2 x 13.4 mm
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4.28ct Natural Wine Red Star Ruby, Oval, Opaque, Photo A

4.28ct Natural Wine Red Star Ruby, Oval, Opaque

Star Ruby

4.28ct1 pc
$ 82.18
10.1 x 7.6 mm
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3.60ct Natural Deep Red Star Ruby, Oval, Opaque, Photo A

3.60ct Natural Deep Red Star Ruby, Oval, Opaque

Star Ruby

3.60ct1 pc
$ 69.12
10 x 8 mm (calibrated)
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5.24ct Natural Jam Red Star Ruby, Oval, Opaque, Photo A

5.24ct Natural Jam Red Star Ruby, Oval, Opaque

Star Ruby

5.24ct1 pc
$ 100.61
9.5 x 8.5 mm
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7.28ct Natural Reddish Purple Star Ruby, Oval, Opaque, Photo A

7.28ct Natural Reddish Purple Star Ruby, Oval, Opaque

Star Ruby

7.28ct1 pc
$ 115.32
12.8 x 10.7 mm
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7.06ct Natural Raspberry Red Star Ruby, Oval, Opaque, Photo A

7.06ct Natural Raspberry Red Star Ruby, Oval, Opaque

Star Ruby

7.06ct1 pc
$ 101.66
12 x 10 mm (calibrated)
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4.40ct Natural Medium Red Star Ruby, Oval, Opaque, Photo A

4.40ct Natural Medium Red Star Ruby, Oval, Opaque

Star Ruby

4.40ct1 pc
$ 70.40
9.4 x 8.3 mm
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21.97ct Natural Grayish Magenta Star Ruby, Oval, Opaque, Photo A

21.97ct Natural Grayish Magenta Star Ruby, Oval, Opaque

Star Ruby

21.97ct1 pc
$ 348.00
16.6 x 14.8 mm
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3.51ct Natural Medium Red Star Ruby, Oval, Opaque, Photo A

3.51ct Natural Medium Red Star Ruby, Oval, Opaque

Star Ruby

3.51ct1 pc
$ 67.39
10.2 x 9 mm
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11.47ct Natural Raspberry Red Star Ruby, Oval, Opaque, Photo A

11.47ct Natural Raspberry Red Star Ruby, Oval, Opaque

Star Ruby

11.47ct1 pc
$ 181.68
12.5 x 11.3 mm
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FAQs

What makes a loose star ruby unique?

A loose star ruby is renowned for its captivating asterism, the star-like phenomenon visible on its surface. This unique effect makes it highly prized among gemstone collectors and jewelry enthusiasts alike.

How does the star effect appear on star rubies?

The star ruby showcases an asterism effect due to light reflecting off inclusions within the gem. Most commonly, this results in a 6-ray star ruby, which is enhanced by cutting the gem into a cabochon shape.

What are unheated star rubies?

Unheated star rubies are gemstones that have not undergone any heat treatment, preserving their natural beauty. These gems are especially sought after by collectors who value their authenticity and natural formation.

Are Burmese star rubies considered the best?

Yes, Burmese star rubies are highly esteemed for their exceptional quality, vivid red hues, and distinct star effect. They are among the most valuable types of star rubies on the market.

Why should I buy loose star rubies instead of pre-set ones?

Purchasing a loose star ruby allows for greater customization. Whether you're designing a custom piece of jewelry or adding to your collection, star ruby loose gems offer flexibility and the opportunity to inspect the quality and appearance firsthand.

What are asterism gemstones?

Asterism gemstones are stones that display a star-like effect due to light reflection. The star ruby is one of the most popular examples, admired for its radiant stars and vibrant color.

Who are loose star rubies suitable for?

Whether you're a jewelry designer or a gemstone collector, loose star rubies cater to various needs. These gems are perfect for crafting unique pieces or as standalone collectibles.

How can I identify a natural star ruby?

A natural star ruby will exhibit its star effect naturally under direct light without synthetic enhancements. Look for certifications to ensure you’re purchasing an authentic gem.

Are ruby stars rare?

Yes, ruby stars are relatively rare due to the specific conditions required for asterism to occur. This rarity contributes to their desirability and value among gem enthusiasts.

What settings work best for loose star ruby jewelry?

Loose star rubies shine in simple settings that allow the ruby’s star effect to take center stage. Rings, pendants, and brooches are popular choices for showcasing their natural beauty.

GemSelect Certified Store Reviews

GemSelect: Over 22 Years in the Gemstone Business! Thank you for trusting us with your purchase!

Overall Rating -> 10 star ratings

Always find more niche sizes/shapes as my unconventional designs require from this website. Recommending to fellow designers in the creative atmosphere on the usual, specially due to the quality and certification of gems.

Posted By Sina in April, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I trust this company to deliver exactly what is offered. I have never had to return a selection of Gems. I appreciate the company's detailed description of their product. It helps this customer find mounts before the gems arrive. Any day of the year one can find a wide selection of gems, be it by price, color, cut, lot or single. Pricing does not jump all over the place and stays reasonable. Be assured your items will arrive in perfect condition as the company's shipping department does a great job.

Posted By Miss Sherrie in August, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

looked at pink stones and at sapphires bought some sapphires. I love looking and collecting gemstones. .

Posted By Steven M. in February, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Gem Select has a user friendly website and the product is very good as is the price. The gems are described accurately and I always get what I think I'm getting.

Posted By Happy Customer in June, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I found the website easy to work with. The gemstones are lovely.

Posted By Sophie-Tiger in September, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

Its been a long time since Ive made any purchases Im satisfied with the quality.

Posted By Hard Case in December, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

It was easy to find what I wanted

Posted By Villian in December, 2024
Source: Bizrate

Overall Rating -> 9 star ratings

I love wide range of stones. Always have my preference.

Posted By Ray in April, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

It was easy and to the point

Posted By Victorius in May, 2025
Source: Bizrate

Why Choose Loose Star Ruby Gemstones?

A loose star ruby is more than just a gemstone; it’s a timeless piece of natural beauty. Known for its distinct 6-ray star ruby effect, caused by the phenomenon of asterism, these gems are highly sought after by gemstone collectors and jewelry designers. Each natural star ruby in our collection has been carefully sourced to ensure authenticity and quality. Whether you're looking for a vibrant centerpiece or a rare addition to your collection, our loose options cater to every preference.

Features of Star Ruby Loose Gemstones

Our selection includes unheated star ruby gemstones, prized for their untreated and natural appearance. You’ll also find exquisite Burmese star rubies, renowned for their intense color and quality. These asterism gemstones are cut into cabochons to maximize the star effect, making them a standout choice for unique jewelry designs. With their rich hues and remarkable clarity, our star rubies are perfect for creating one-of-a-kind pieces.

Who Are These Gems For?

Whether you’re a seasoned gemstone collector or a first-time buyer, loose star ruby gems offer versatility and value. Their distinct ruby star effect adds a touch of elegance to any setting, from rings to pendants. If you’re drawn to the brilliance of natural star ruby or the rarity of unheated star ruby, our collection has something to suit your taste.

Read All

Over 19 Years in the Gemstone Business!

Thank you for trusting us with your purchase!

Overall Rating -> 10 star ratings

Always find more niche sizes/shapes as my unconventional designs require from this website. Recommending to fellow designers in the creative atmosphere on the usual, specially due to the quality and certification of gems.

Posted By Sina in April, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I trust this company to deliver exactly what is offered. I have never had to return a selection of Gems. I appreciate the company's detailed description of their product. It helps this customer find mounts before the gems arrive. Any day of the year one can find a wide selection of gems, be it by price, color, cut, lot or single. Pricing does not jump all over the place and stays reasonable. Be assured your items will arrive in perfect condition as the company's shipping department does a great job.

Posted By Miss Sherrie in August, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

looked at pink stones and at sapphires bought some sapphires. I love looking and collecting gemstones. .

Posted By Steven M. in February, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Gem Select has a user friendly website and the product is very good as is the price. The gems are described accurately and I always get what I think I'm getting.

Posted By Happy Customer in June, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I found the website easy to work with. The gemstones are lovely.

Posted By Sophie-Tiger in September, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

Its been a long time since Ive made any purchases Im satisfied with the quality.

Posted By Hard Case in December, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

It was easy to find what I wanted

Posted By Villian in December, 2024
Source: Bizrate

Overall Rating -> 9 star ratings

I love wide range of stones. Always have my preference.

Posted By Ray in April, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

It was easy and to the point

Posted By Victorius in May, 2025
Source: Bizrate

FAQ's

What makes a loose star ruby unique?

A loose star ruby is renowned for its captivating asterism, the star-like phenomenon visible on its surface. This unique effect makes it highly prized among gemstone collectors and jewelry enthusiasts alike.

How does the star effect appear on star rubies?

The star ruby showcases an asterism effect due to light reflecting off inclusions within the gem. Most commonly, this results in a 6-ray star ruby, which is enhanced by cutting the gem into a cabochon shape.

What are unheated star rubies?

Unheated star rubies are gemstones that have not undergone any heat treatment, preserving their natural beauty. These gems are especially sought after by collectors who value their authenticity and natural formation.

Are Burmese star rubies considered the best?

Yes, Burmese star rubies are highly esteemed for their exceptional quality, vivid red hues, and distinct star effect. They are among the most valuable types of star rubies on the market.

Why should I buy loose star rubies instead of pre-set ones?

Purchasing a loose star ruby allows for greater customization. Whether you're designing a custom piece of jewelry or adding to your collection, star ruby loose gems offer flexibility and the opportunity to inspect the quality and appearance firsthand.

What are asterism gemstones?

Asterism gemstones are stones that display a star-like effect due to light reflection. The star ruby is one of the most popular examples, admired for its radiant stars and vibrant color.

Who are loose star rubies suitable for?

Whether you're a jewelry designer or a gemstone collector, loose star rubies cater to various needs. These gems are perfect for crafting unique pieces or as standalone collectibles.

How can I identify a natural star ruby?

A natural star ruby will exhibit its star effect naturally under direct light without synthetic enhancements. Look for certifications to ensure you’re purchasing an authentic gem.

Are ruby stars rare?

Yes, ruby stars are relatively rare due to the specific conditions required for asterism to occur. This rarity contributes to their desirability and value among gem enthusiasts.

What settings work best for loose star ruby jewelry?

Loose star rubies shine in simple settings that allow the ruby’s star effect to take center stage. Rings, pendants, and brooches are popular choices for showcasing their natural beauty.

Enlarged Gemstone Image