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Opal Gemstones

Discover natural opal gemstones known for their unique play-of-color and endless variety.

Black Opal
White Opal
Boulder Opal
Chocolate Opal
Fire Opal
Opal Doublet
Matrix Opal
Round Opal Gems
1-2 Carat Opal
2-5 Carat Opal
Opal Weight
Opal Size
Opal Clarity
Opal Price

Size Explained

Choose Size or Size Range
For Example: 6-7
For Example: 8-9
Bi-color
Black Opal
Blue
Brown Opal
Golden Opal
Gray
Green Opal
Multicolor Opal
Orange Opal
Pink
Purple
Red
Turquoise
Violet
White Opal
Yellow Opal
Single
Pairs
Lots
Faceted
Cabochons
Clear All
6.06ct Multicolor Black Opal, Oval, Opaque

6.06ct Multicolor Black Opal, Oval, Opaque

18 x 13 mm (calibrated)

$ 218.16

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4.64ct Yellowish Green Cat's Eye Opal, Oval, Opaque

4.64ct Yellowish Green Cat's Eye Opal, Oval, Opaque

11.3 x 9.8 mm

$ 9.28

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38.09ct Earth Green Cat's Eye Opal, Oval, Opaque

38.09ct Earth Green Cat's Eye Opal, Oval, Opaque

21.5 x 18 mm

$ 114.28

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6.36ct Golden Orange Cat's Eye Opal, Oval, Opaque

6.36ct Golden Orange Cat's Eye Opal, Oval, Opaque

13.4 x 11.4 mm

$ 22.90

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1.08ctw Multicolor Opal, Oval, Opaque

1.08ctw Multicolor Opal, Oval, Opaque

7 x 5 mm (calibrated)

$ 42.77

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14.20ct Earthy Green Opal, Oval, Opaque

14.20ct Earthy Green Opal, Oval, Opaque

17.3 x 14.5 mm

$ 30.53

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7.95ct Multicolor Boulder Opal, Oval, Opaque

7.95ct Multicolor Boulder Opal, Oval, Opaque

18.3 x 9.9 mm

$ 66.78

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10.37ct Earth Green Opal, Oval, Opaque

10.37ct Earth Green Opal, Oval, Opaque

18 x 13 mm (calibrated)

$ 27.53

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0.57ct Multicolor Blue Opal Doublet, Pear Shape, Opaque

0.57ct Multicolor Blue Opal Doublet, Pear Shape, Opaque

8.2 x 5.2 mm

$ 20.40

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0.68ct Multicolor Opal, Pear Shape, Transparent

0.68ct Multicolor Opal, Pear Shape, Transparent

8 x 5.7 mm

$ 20.40

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1.09ct Multicolor Black Opal, Oval, Translucent

1.09ct Multicolor Black Opal, Oval, Translucent

8.6 x 6.6 mm

$ 43.16

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14.54ct Multicolor Boulder Opal, Fancy, Opaque

14.54ct Multicolor Boulder Opal, Fancy, Opaque

20 x 13.5 mm

$ 87.24

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2.41ctw Multicolor Opal, Oval, Opaque

2.41ctw Multicolor Opal, Oval, Opaque

9 x 7 mm (calibrated)

$ 95.44

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5.32ctw Multicolor Opal, Round, Translucent

5.32ctw Multicolor Opal, Round, Translucent

6.5 mm (calibrated)

$ 196.63

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0.92ct Multicolor Opal, Oval, Opaque

0.92ct Multicolor Opal, Oval, Opaque

8 x 6 mm (calibrated)

$ 33.12

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22.34ct Yellowish Green Opal, Pear Shape, Opaque

22.34ct Yellowish Green Opal, Pear Shape, Opaque

27.1 x 18.5 mm

$ 57.64

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7.90ct Multicolor Black Opal, Cushion, Translucent

7.90ct Multicolor Black Opal, Cushion, Translucent

14.5 x 13.6 mm

$ 395.00

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10.65ct Multicolor Boulder Opal, Fancy, Opaque

10.65ct Multicolor Boulder Opal, Fancy, Opaque

20.2 x 13.2 mm

$ 63.90

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1.14ct Multicolor Opal, Oval, Opaque

1.14ct Multicolor Opal, Oval, Opaque

8 x 6 mm (calibrated)

$ 41.04

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7.58ct Multicolor Boulder Opal, Fancy, Opaque

7.58ct Multicolor Boulder Opal, Fancy, Opaque

18 x 9.2 mm

$ 45.48

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4.13ct Multicolor Black Opal, Oval, Opaque

4.13ct Multicolor Black Opal, Oval, Opaque

12.8 x 10.5 mm

$ 206.50

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0.71ct Multicolor Chocolate Opal, Oval, Translucent

0.71ct Multicolor Chocolate Opal, Oval, Translucent

8 x 6 mm (calibrated)

$ 25.56

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12.06ct Grayish Green Cat's Eye Opal, Oval, Opaque

12.06ct Grayish Green Cat's Eye Opal, Oval, Opaque

18 x 13 mm (calibrated)

$ 24.12

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1.07ctw Multicolor Opal, Oval, Opaque

1.07ctw Multicolor Opal, Oval, Opaque

7 x 5 mm (calibrated)

$ 38.52

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Why Buy Opal from GemSelect?

Natural Opal Gemstones

Our natural opal gemstones are carefully selected for their vibrant play-of-color and individuality. Each stone is unique, making opals a favorite among jewelers and collectors.

Loose Opal Gemstones Online

Buy loose opal gemstones online at GemSelect with confidence. We offer detailed photos, transparent descriptions, and secure worldwide shipping.

Loose Opal Gemstones for Jewelry and Collecting

Opal for Jewelry Making

Opal gemstones are ideal for custom jewelry such as rings, pendants, and earrings. Their shifting colors create eye-catching designs unlike any other gemstone.

Australian and Ethiopian Opal

Australian opals are prized for their durability and classic color play, while Ethiopian opals are known for bold patterns and vivid flashes of color.

Faceted Opal Stones

Faceted opal gemstones enhance brilliance and highlight internal color play. These stones are perfect for modern jewelry designs requiring extra sparkle.

Opal Cabochons

Opal cabochons feature smooth, domed surfaces that emphasize color patterns. They are a popular choice for statement jewelry and artistic settings.

Wholesale Opal Gemstones

We offer wholesale opal gemstones for jewelers and designers seeking quality stones at competitive prices, including matched pairs and calibrated sizes.

October Birthstone Opal

Opal is the October birthstone, symbolizing creativity and individuality. It makes a meaningful gift for birthdays and special occasions.

Learn more about opal characteristics, care, and history on our Opal Information Page.

FAQs

What makes opal gemstones unique?

Opals are known for their play-of-color, an optical effect where flashes of color shift with movement and light.

Are GemSelect’s opal gemstones natural?

Yes, all our opal gemstones are natural. Any treatments or stabilizations are clearly disclosed.

Are opals suitable for everyday jewelry?

Opals are best suited for occasional wear. Protective settings are recommended due to their moderate hardness.

What types of opal do you sell?

We offer a wide range including Australian opal, Ethiopian opal, black opal, white opal, fire opal, and boulder opal.

Can I buy opal gemstones in matched pairs?

Yes, we offer matched opal pairs ideal for earrings and custom jewelry designs.

GemSelect Certified Store Reviews

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

Overall Rating -> 9 star ratings

I was looking for a small gift for a friend- the process is the same as every other time and was very simple, and she even got her gift early! On the downside, there's no way to easily keep track of multiple Shipping Addresses, so if I want to send a gift to Friend A and to Friend B, I have to overwrite everything and it's a fair bit clunky in that regard.

Posted By Jezzi in June, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Was a good experience.

Posted By Tim in July, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Very good

Posted By Niska in August, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I love Gem Select! When you order what you see is what you get. As soon as you make payment that particular gem is taken off the photo album. That way the one you select is a one of that kind.

Posted By Desertchick in March, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I love the ability to choose from many options of shapes, gemstone type, color, and so forth. It is fun!

Posted By Geof in November, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

I wish there were options for jewelry settings

Posted By Tim in May, 2025
Source: Bizrate
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