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Round Opal Gemstones

Discover natural round opal gemstones, precision-cut for brilliance and perfect symmetry in fine jewelry designs.

Round Opal Gems Weight
Round Opal Gems Size
Round Opal Gems Clarity
Round Opal Gems Price

Size Explained

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For Example: 6-7
For Example: 8-9
Bi-color
Black
Blue
Brown
Golden
Gray
Green
Multicolor Round Opal Gems
Orange Round Opal Gems
Pink
Purple
Red
Turquoise
Violet
White
Yellow
Single
Pairs
Lots
Faceted
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0.64ct Multicolor Chocolate Opal, Round, Translucent

6 mm (calibrated)

$ 21.12

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0.87ct Multicolor Opal, Round, Transparent

7 mm (calibrated)

$ 21.71

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0.84ct Multicolor Chocolate Opal, Round, Translucent

8 mm (calibrated)

$ 33.26

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3.04ctw Multicolor Opal, Round, Transparent

6.5 mm (calibrated)

$ 85.51

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1.41ct Fire Orange Opal, Round, Translucent

8 mm (calibrated)

$ 44.93

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2.04ctw Multicolor Opal, Round, Translucent

5 mm (calibrated)

$ 52.16

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1.81ctw Multicolor Opal, Round, Transparent

5 mm (calibrated)

$ 50.92

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0.85ct Multicolor Opal, Round, Transparent

7 mm (calibrated)

$ 25.15

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0.95ct Multicolor Opal, Round, Translucent

7 mm (calibrated)

$ 21.29

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5.56ctw Multicolor Opal, Round, Transparent

8 mm (calibrated)

$ 205.50

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1.46ctw Multicolor Opal, Round, Transparent

6 mm (calibrated)

$ 41.06

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0.85ct Multicolor Opal, Round, Translucent

6.5 mm (calibrated)

$ 25.61

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6.67ctw Multicolor Opal, Round, Transparent

8 mm (calibrated)

$ 224.11

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11.06ct Multicolor Black Opal, Round, Opaque

15 mm (calibrated)

$ 553.00

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0.82ct Multicolor Opal, Round, Opaque

6.5 mm (calibrated)

$ 32.47

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5.32ctw Multicolor Opal, Round, Translucent

6.5 mm (calibrated)

$ 196.63

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0.64ct Bright Orange Fire Opal, Round, Transparent

6 mm (calibrated)

$ 26.88

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51.22ct Multicolor Opal, Round, Opaque

32.1 mm

$ 184.39

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2.44ctw Multicolor Opal, Round, Transparent

5 mm (calibrated)

$ 112.73

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0.82ct Multicolor Opal, Round, Translucent

7 mm (calibrated)

$ 24.26

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1.10ct Multicolor Opal, Round, Translucent

7 mm (calibrated)

$ 32.54

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6.46ctw Multicolor Opal, Round, Translucent

8 mm (calibrated)

$ 238.76

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4.71ctw Multicolor Opal, Round, Translucent

8 mm (calibrated)

$ 174.08

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0.82ct Multicolor Opal, Round, Opaque

7 mm (calibrated)

$ 32.47

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Why Buy Round Opal Gems from GemSelect?

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.

Round Opal Gemstones for Jewelry Making

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 star ratings

I needed a very specific color of tourmaline and Gem Select had it. I had to get the client to agree and then ordered the stone. It arrived better than pictured and we all were very happy.

Posted By Tim W in February, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Filters need to be improved but rest of website is great

Posted By Rock hound in December, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

It was great!

Posted By Annie in September, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

It was all good

Posted By Debsarabs in February, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

this site is awesome. I was able to look at the products think about purchasing and come back and find the same products. With the amount of inventory gem select has. Its awesome to be able to filter the way that they allow you too.

Posted By Tommyp in November, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

went well

Posted By Doug in May, 2025
Source: Bizrate
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