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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
Turquoise
Violet
White Opal
Yellow Opal
Single
Pairs
Lots
Faceted
Cabochons
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20.80ct Multicolor Boulder Opal, Fancy, Opaque

32.3 x 16.8 mm

$ 137.28

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2.79ctw Multicolor Black Opal, Oval, Translucent

9 x 7 mm (calibrated)

$ 92.07

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35.99ct Multicolor Boulder Opal, Fancy, Opaque

45 x 23.8 mm

$ 129.56

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3.78ct Multicolor Opal, Pear Shape, Translucent

13.6 x 10 mm

$ 99.79

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0.89ctw Multicolor Opal, Oval, Transparent

7 x 5 mm (calibrated)

$ 244.75

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6.68ct Multicolor Black Opal, Marquise, Opaque

20 x 10 mm (calibrated)

$ 240.48

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7.86ct Medium Yellow Cat's Eye Opal, Oval, Translucent

15 x 10 mm (calibrated)

$ 17.02

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1.01ct Multicolor Chocolate Opal, Oval, Translucent

8 x 6 mm (calibrated)

$ 40.00

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48.08ct Multicolor Opal, Pear Shape, Opaque

40.1 x 27.1 mm

$ 173.09

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3.26ct Golden-Brown Cat's Eye Opal, Oval, Opaque

11.6 x 6.8 mm

$ 11.74

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30.50ct Multicolor Boulder Opal, Pear Shape, Translucent

30 x 22 mm (calibrated)

$ 201.30

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25.30ct Multicolor Boulder Opal, Oval, Opaque

29.7 x 13.5 mm

$ 212.52

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1.25ct Multicolor Opal, Pear Shape, Translucent

10 x 8 mm (calibrated)

$ 30.25

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38.88ct Medium Green Cat's Eye Opal, Oval, Opaque

25.1 x 20.8 mm

$ 116.64

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5.66ct Multicolor Black Opal, Oval, Opaque

16 x 12 mm (calibrated)

$ 169.80

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28.58ct Multicolor Boulder Opal, Oval, Opaque

23.1 x 18.5 mm

$ 240.07

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17.73ct Multicolor Boulder Opal, Fancy, Opaque

23.7 x 15.3 mm

$ 106.38

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7.14ct Multicolor Black Opal, Oval, Translucent

19.9 x 12.1 mm

$ 214.20

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20.10ct Multicolor Boulder Opal, Cushion, Opaque

21.1 x 16.6 mm

$ 120.60

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12.07ct Multicolor Boulder Opal, Oval, Opaque

27.4 x 9.9 mm

$ 101.39

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21.16ct Multicolor Boulder Opal, Fancy, Opaque

25.6 x 16.9 mm

$ 126.96

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24.07ct Multicolor Boulder Opal, Fancy, Opaque

22.2 x 18.7 mm

$ 144.42

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17.03ct Multicolor Boulder Opal, Fancy, Opaque

26.9 x 13.5 mm

$ 112.40

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11.91ct Brownish Yellow Cat's Eye Opal, Oval, Opaque

15.5 x 13 mm

$ 71.46

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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 have found GemSelect to have the best selections of quality stones at a reasonable price. I like the packaging and the report availability.

Posted By Sam in March, 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

Enjoy every moment

Posted By Ferns in October, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

So far So good

Posted By VH-1 in July, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

I love the gems!

Posted By MM in April, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

It's always a pleasure doing business with Gem Select. Outstanding products ant very reasonable prices. Thank You One and All.

Posted By G.W. or Bakyow in July, 2025
Source: Bizrate
Enlarged Gemstone Image