Round Opal Gemstones
Discover natural round opal gemstones, precision-cut for brilliance and perfect symmetry in fine jewelry designs.
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Bi-color
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Black
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Blue
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Brown
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Golden
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Gray
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Green Round Opal Gems
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Multicolor Round Opal Gems
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Orange Round Opal Gems
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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 |
1.01ct Multicolor Opal, Round, Transparent
7 mm (calibrated)
$ 24.79
1.86ct Multicolor Black Opal, Round, Opaque
8.5 mm (calibrated)
$ 56.62
10.30ct Multicolor Fire Opal, Round, Opaque
15 mm (calibrated)
$ 51.50
1.03ct Multicolor Opal, Round, Translucent
7 mm (calibrated)
$ 24.05
3.01ctw Multicolor Opal, Round, Translucent
6.5 mm (calibrated)
$ 70.27
8.15ctw Multicolor Opal, Round, Translucent
8 mm (calibrated)
$ 250.01
2.04ctw Multicolor Opal, Round, Translucent
5 mm (calibrated)
$ 43.29
0.51ct Multicolor Opal, Round, Opaque
6 mm (calibrated)
$ 16.77
1.00ct Multicolor Black Opal, Round, Opaque
8 mm (calibrated)
$ 25.27
3.82ct Multicolor Black Opal, Round, Opaque
11 mm (calibrated)
$ 111.29
3.43ctw Multicolor Opal, Round, Transparent
7 mm (calibrated)
$ 80.08
1.07ct Multicolor Black Opal, Round, Opaque
8.5 mm (calibrated)
$ 27.03
2.91ct Multicolor Black Opal, Round, Opaque
11 mm (calibrated)
$ 73.52
4.26ct Multicolor Black Opal, Round, Opaque
12 mm (calibrated)
$ 124.11
1.36ct Multicolor Black Opal, Round, Opaque
8 mm (calibrated)
$ 34.36
6.38ctw Multicolor Black Opal, Round, Translucent
8 mm (calibrated)
$ 146.30
3.24ct Green Opal, Round, Opaque
10 mm (calibrated)
$ 7.52
0.71ct Multicolor Opal, Round, Transparent
6.5 mm (calibrated)
$ 14.38
0.97ct Multicolor Black Opal, Round, Opaque
8 mm (calibrated)
$ 29.53
7.74ctw Multicolor Opal, Round, Translucent
8 mm (calibrated)
$ 237.44
2.70ctw Multicolor Opal, Round, Translucent
6.5 mm (calibrated)
$ 63.04
2.03ctw Multicolor Opal, Round, Transparent
7 mm (calibrated)
$ 49.84
1.08ct Multicolor Black Opal, Round, Opaque
8 mm (calibrated)
$ 32.88
3.11ct Multicolor Boulder Opal, Round, Opaque
9 mm (calibrated)
$ 12.91
Why Buy Round Opal Gems 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 Round Opal Gemstones
Our round opal gemstones are 100% natural and carefully selected for color, play-of-color, and cutting quality, making them ideal for fine jewelry and collections.
Round Cut Opals for Jewelry
The round cut is one of the most versatile shapes in jewelry, offering excellent brilliance and balance. Round opals are especially popular for rings, earrings, and pendants.
Loose Round Opal Stones
Buying loose round opal stones allows complete design freedom. Choose the size, color pattern, and transparency that best fits your custom jewelry project.
Calibrated Round Opals
Calibrated round opals are available in standard sizes such as 5 mm, 6 mm, and 7 mm, making them easy to set into pre-made jewelry settings.
Play-of-Color in Round Opals
Round opals showcase play-of-color beautifully, with flashes of red, green, blue, and orange distributed evenly across the stone’s surface.
Round Opals for Custom Rings
The symmetrical shape of round opals makes them a favorite for engagement rings and statement rings, offering a balanced and elegant appearance.
Wholesale Round Opal Gemstones
We offer wholesale round opal gemstones for jewelers and designers, with competitive pricing on multi-stone and bulk purchases.
Learn more about opal types, properties, and care on our Opal Information Page.
FAQs
Are your round opal gemstones natural?
Yes, all round opal gemstones sold by GemSelect are 100% natural, with any treatments fully disclosed.
What jewelry is best suited for round opals?
Round opals are ideal for rings, earrings, pendants, and engagement-style designs due to their symmetry and balanced appearance.
Do you sell calibrated round opals?
Yes, we offer calibrated round opals in standard millimeter sizes to fit common jewelry settings.
How durable are round opal gemstones?
Opals typically rank 5.5-6.5 on the Mohs scale, making them suitable for jewelry with proper care and protective settings.
Can I buy round opal gemstones in bulk?
Yes, bulk and wholesale options are available for jewelers and collectors looking for multiple matching round opal stones.
GemSelect Certified Store Reviews
GemSelect: Over 22 Years in the Gemstone Business! Thank you for trusting us with your purchase!
Overall Rating -> 10 
I found the filter options excellent. Yours was the third site I visited (asked chat got for reputable online sellers of loose gems) and the first I purchased from as I was able to easily find what I was looking for.
Overall Rating -> 10
Great! Affordable
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.
Overall Rating -> 10
Great site for finding specific stones and sizes for individual pieces of jewelry
Overall Rating -> 10
It was good. There was a large selection at prices I could afford.
Overall Rating -> 10
Absolutely love the website, selection and products. Can you guys add a gemstones with inclusions tab. I like those it'd be nice to have them all in one place but i do understand it would be alot of work to go through and categorize them. Thank you anyways
