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Home › Gemstones › Opal

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
Yellow Opal
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
0.46ct Multicolor Opal, Oval, Opaque

0.46ct Multicolor Opal, Oval, Opaque

7 x 5 mm (calibrated)

$ 13.74

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7.46ct Multicolor Black Opal, Pear Shape, Opaque

7.46ct Multicolor Black Opal, Pear Shape, Opaque

16 x 12 mm (calibrated)

$ 309.59

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0.57ct Multicolor Opal, Oval, Opaque

0.57ct Multicolor Opal, Oval, Opaque

6.6 x 4.9 mm

$ 17.03

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1.22ct Multicolor Opal, Round, Opaque

1.22ct Multicolor Opal, Round, Opaque

8 mm (calibrated)

$ 40.10

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0.72ct Multicolor Opal, Marquise, Transparent

0.72ct Multicolor Opal, Marquise, Transparent

9.8 x 5 mm

$ 23.01

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0.74ct Multicolor Opal, Fancy, Translucent

0.74ct Multicolor Opal, Fancy, Translucent

10 x 7 mm (calibrated)

$ 17.20

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5.36ctw Multicolor Opal, Round, Transparent

5.36ctw Multicolor Opal, Round, Transparent

8 mm (calibrated)

$ 149.48

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3.33ct Multicolor Opal, Oval, Transparent

3.33ct Multicolor Opal, Oval, Transparent

14.2 x 9.6 mm

$ 82.92

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1.65ct Multicolor Opal, Oval, Opaque

1.65ct Multicolor Opal, Oval, Opaque

10 x 8 mm (calibrated)

$ 49.30

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10.83ct Green Opal, Oval, Opaque

10.83ct Green Opal, Oval, Opaque

21.3 x 13.6 mm

$ 23.19

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0.61ct Multicolor Opal, Oval, Opaque

0.61ct Multicolor Opal, Oval, Opaque

7 x 5 mm (calibrated)

$ 18.23

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1.50ct Multicolor Opal, Oval, Opaque

1.50ct Multicolor Opal, Oval, Opaque

9 x 7 mm (calibrated)

$ 44.82

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28.90ct Multicolor Opal, Oval, Opaque

28.90ct Multicolor Opal, Oval, Opaque

32.9 x 21.4 mm

$ 86.35

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0.68ct Multicolor Opal, Oval, Opaque

0.68ct Multicolor Opal, Oval, Opaque

8 x 6 mm (calibrated)

$ 20.32

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0.85ct Multicolor Opal, Trillion, Transparent

0.85ct Multicolor Opal, Trillion, Transparent

8 x 8 mm (calibrated)

$ 24.69

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1.61ct Multicolor Opal, Oval, Opaque

1.61ct Multicolor Opal, Oval, Opaque

9 x 7 mm (calibrated)

$ 48.11

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1.34ct Multicolor Opal, Oval, Opaque

1.34ct Multicolor Opal, Oval, Opaque

9 x 7 mm (calibrated)

$ 40.04

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16.83ct Multicolor Boulder Opal, Fancy, Opaque

16.83ct Multicolor Boulder Opal, Fancy, Opaque

23.2 x 16 mm

$ 83.81

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20.54ct Multicolor Opal, Oval, Transparent

20.54ct Multicolor Opal, Oval, Transparent

21.1 x 17.9 mm

$ 1,022.89

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1.73ct Multicolor Opal, Pear Shape, Translucent

1.73ct Multicolor Opal, Pear Shape, Translucent

11 x 9 mm (calibrated)

$ 48.01

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3.56ct Multicolor Black Opal, Oval, Opaque

3.56ct Multicolor Black Opal, Oval, Opaque

13.3 x 9.9 mm

$ 103.72

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0.84ct Multicolor Opal, Pear Shape, Transparent

0.84ct Multicolor Opal, Pear Shape, Transparent

9 x 6 mm (calibrated)

$ 19.09

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4.12ct Multicolor Black Opal, Pear Shape, Opaque

4.12ct Multicolor Black Opal, Pear Shape, Opaque

15.9 x 9.2 mm

$ 170.98

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25.02ct Multicolor Boulder Opal, Fancy, Opaque
Boulder Opal Product Video (636159)

25.02ct Multicolor Boulder Opal, Fancy, Opaque

29.5 x 18.4 mm

$ 174.44

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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 -> 10 star ratings

I liked the selection of gems, and price. I did not like your PayPal process. I already have a PP account and you want me to sign up for another.

Posted By CLTCJH in May, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

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.

Posted By DNaber in October, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Great site for finding specific stones and sizes for individual pieces of jewelry

Posted By Designer in December, 2025
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

The citrine gems are beautiful. I appreciated that each stone was individually shown on the website so I could see exactly what I was getting. No mystery person selecting random stones for me. The documentation included with each gem was high quality as well. Great price and arrived as expected.

Posted By Jen in December, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I was able to find what I've been looking for.

Posted By Tree Dog in April, 2026
Source: Bizrate
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