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 |
0.89ct Multicolor Opal, Round, Opaque
7 mm (calibrated)
$ 29.25
0.82ct Multicolor Opal, Round, Translucent
7 mm (calibrated)
$ 20.14
1.18ct Multicolor Black Opal, Round, Translucent
8.5 mm (calibrated)
$ 29.81
0.85ct Multicolor Opal, Round, Translucent
6.5 mm (calibrated)
$ 21.26
0.85ct Multicolor Opal, Round, Transparent
7 mm (calibrated)
$ 20.87
1.34ct Multicolor Black Opal, Round, Opaque
8.5 mm (calibrated)
$ 33.86
0.82ct Multicolor Opal, Round, Opaque
6.5 mm (calibrated)
$ 26.95
5.49ctw Multicolor Opal, Round, Translucent
8 mm (calibrated)
$ 153.10
4.06ct Multicolor Opal, Round, Opaque
12 mm (calibrated)
$ 121.31
5.75ctw Multicolor Opal, Round, Translucent
8 mm (calibrated)
$ 168.42
8.57ct Multicolor Black Opal, Round, Opaque
14 mm (calibrated)
$ 355.66
0.89ct Multicolor Opal, Round, Translucent
7 mm (calibrated)
$ 21.85
1.30ct Multicolor Black Opal, Round, Opaque
8.5 mm (calibrated)
$ 33.33
1.91ct Multicolor Black Opal, Round, Translucent
9 mm (calibrated)
$ 48.26
5.32ctw Multicolor Opal, Round, Translucent
6.5 mm (calibrated)
$ 163.20
26.71ct Multicolor Opal, Round, Opaque
22.5 mm
$ 1,330.16
51.22ct Multicolor Opal, Round, Opaque
32.1 mm
$ 153.04
1.81ctw Multicolor Opal, Round, Transparent
5 mm (calibrated)
$ 42.26
1.93ctw Multicolor Opal, Round, Translucent
6 mm (calibrated)
$ 74.01
6.07ctw Multicolor Opal, Round, Translucent
8 mm (calibrated)
$ 186.21
29.81ct Multicolor Opal, Round, Opaque
26 mm
$ 89.08
11.73ct Multicolor Boulder Opal, Round, Translucent
19 mm (calibrated)
$ 81.78
4.71ctw Multicolor Opal, Round, Translucent
8 mm (calibrated)
$ 144.49
2.44ctw Multicolor Opal, Round, Transparent
5 mm (calibrated)
$ 93.57
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 was able to find what I've been looking for.
Overall Rating -> 10
Found a beautiful opal at a great price. I was not disappointed when it arrived. Even better in person.
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
Easy to use. No issues. Large selection of gems.
Overall Rating -> 10
I feel Gemselect is a trustworthy company to buy from
Overall Rating -> 10
My experience has always been fantastic. Today I saved 6 gems to email a customer looking for a particular color blend to fit into an east west setting, so her options were limited, but we found one she wanted, deleted all the others in the cart and order the gem she selected. It was helpful to be able to put them in the cart so I could save them until she selected the one she wanted without having to research all of them again.
