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Opal Gemstones

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

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 Opal
Turquoise
Violet
White Opal
Yellow Opal
Single
Pairs
Lots
Faceted
Cabochons
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23.49ct Multicolor Boulder Opal, Fancy, Opaque

28.3 x 16.1 mm

$ 117.45

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8.69ct Multicolor Boulder Opal, Pear Shape, Translucent

20 x 12.3 mm

$ 80.29

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5.55ct Multicolor Black Opal, Trillion, Opaque

13.3 x 14.2 mm

$ 199.80

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1.33ct Multicolor Opal, Oval, Opaque

9 x 7 mm (calibrated)

$ 47.88

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17.63ct Multicolor Boulder Opal, Fancy, Opaque

23.8 x 14.9 mm

$ 105.78

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1.71ct Multicolor Opal, Marquise, Transparent

16.1 x 6.4 mm

$ 79.01

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0.48ct Multicolor Opal, Oval, Opaque

7 x 5 mm (calibrated)

$ 17.28

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8.27ct Multicolor Boulder Opal, Fancy, Opaque

27.2 x 8.3 mm

$ 49.62

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5.16ct Multicolor Opal, Oval, Transparent

16 x 11.3 mm

$ 156.29

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0.82ct Multicolor Opal, Oval, Opaque

8 x 6 mm (calibrated)

$ 29.52

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2.61ct Multicolor Black Opal, Oval, Opaque

12.7 x 9.5 mm

$ 104.40

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1.43ctw Multicolor Opal, Oval, Transparent

7 x 5 mm (calibrated)

$ 75.50

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0.69ct Multicolor Chocolate Opal, Oval, Opaque

8 x 6 mm (calibrated)

$ 24.84

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2.79ctw Multicolor Black Opal, Oval, Opaque

7 x 5 mm (calibrated)

$ 100.44

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5.49ctw Multicolor Opal, Round, Translucent

8 mm (calibrated)

$ 184.46

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1.55ct Multicolor Opal, Oval, Translucent

11 x 8.2 mm

$ 46.50

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1.35ctw Multicolor Opal, Oval, Opaque

8 x 6 mm (calibrated)

$ 48.60

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4.61ctw Multicolor Opal, Square, Transparent

4 x 4 mm (calibrated)

$ 39.43

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2.13ct Multicolor Black Opal, Oval, Opaque

12.2 x 7.7 mm

$ 85.20

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14.45ct Multicolor Boulder Opal, Oval, Opaque

20 x 15 mm (calibrated)

$ 86.70

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1.41ctw Multicolor Black Opal, Oval, Translucent

6 x 4 mm (calibrated)

$ 55.84

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34.61ct Multicolor Opal, Pear Shape, Opaque

33.4 x 24.3 mm

$ 124.60

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1.11ct Multicolor Opal, Pear Shape, Transparent

12 x 7.1 mm

$ 59.94

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1.42ct Multicolor Opal, Oval, Transparent

9 x 7 mm (calibrated)

$ 53.82

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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

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

Posted By Designer in December, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

Always a good quality stone. Priced fairly and shipped promptly. Answers emails quickly

Posted By Ron T in November, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I would recommend gem select yo everyone Fast service and no problems

Posted By Steve in March, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

hassle free experience.

Posted By Jhidron in October, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

I think therea's no problem

Posted By Napoleon in August, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Was a good experience.

Posted By Tim in July, 2025
Source: Bizrate
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