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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
0.93ct Multicolor Opal, Oval, Transparent

0.93ct Multicolor Opal, Oval, Transparent

9 x 7 mm (calibrated)

$ 35.24

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3.68ct Warm Off-White Cat's Eye Opal, Oval, Opaque

3.68ct Warm Off-White Cat's Eye Opal, Oval, Opaque

10.9 x 8.1 mm

$ 24.29

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1.85ctw Multicolor Opal, Oval, Opaque

1.85ctw Multicolor Opal, Oval, Opaque

8 x 6 mm (calibrated)

$ 73.26

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10.40ct Multicolor Boulder Opal, Fancy, Opaque

10.40ct Multicolor Boulder Opal, Fancy, Opaque

19.5 x 12.6 mm

$ 96.10

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17.63ct Multicolor Boulder Opal, Fancy, Opaque

17.63ct Multicolor Boulder Opal, Fancy, Opaque

23.8 x 14.9 mm

$ 105.78

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11.76ct Multicolor Black Opal, Pear Shape, Opaque

11.76ct Multicolor Black Opal, Pear Shape, Opaque

22.5 x 15 mm

$ 588.00

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0.87ct Multicolor Opal, Oval, Opaque

0.87ct Multicolor Opal, Oval, Opaque

8 x 6 mm (calibrated)

$ 31.32

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16.25ct Multicolor Boulder Opal, Fancy, Opaque

16.25ct Multicolor Boulder Opal, Fancy, Opaque

29.7 x 15 mm

$ 97.50

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6.20ct Multicolor Boulder Opal, Oval, Opaque

6.20ct Multicolor Boulder Opal, Oval, Opaque

22.9 x 7.6 mm

$ 52.08

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1.14ct Multicolor Opal, Oval, Opaque

1.14ct Multicolor Opal, Oval, Opaque

9 x 7 mm (calibrated)

$ 41.04

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5.56ct Golden-Orange Cat's Eye Opal, Oval, Opaque

5.56ct Golden-Orange Cat's Eye Opal, Oval, Opaque

13 x 10.6 mm

$ 20.02

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13.29ct Multicolor Boulder Opal, Fancy, Opaque
Boulder Opal Product Video (627967)

13.29ct Multicolor Boulder Opal, Fancy, Opaque

21.7 x 13.6 mm

$ 79.74

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1.32ct Multicolor Opal, Oval, Opaque

1.32ct Multicolor Opal, Oval, Opaque

9 x 7 mm (calibrated)

$ 47.52

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1.35ct Multicolor Opal, Oval, Opaque

1.35ct Multicolor Opal, Oval, Opaque

10 x 8 mm (calibrated)

$ 48.60

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10.36ct Multicolor Boulder Opal, Fancy, Translucent

10.36ct Multicolor Boulder Opal, Fancy, Translucent

19.6 x 11.4 mm

$ 62.16

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1.96ct Multicolor Opal, Oval, Opaque

1.96ct Multicolor Opal, Oval, Opaque

10 x 8 mm (calibrated)

$ 70.56

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5.75ctw Multicolor Opal, Round, Translucent

5.75ctw Multicolor Opal, Round, Translucent

8 mm (calibrated)

$ 202.91

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2.37ctw Multicolor Opal, Oval, Opaque

2.37ctw Multicolor Opal, Oval, Opaque

9 x 7 mm (calibrated)

$ 85.32

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27.17ct Multicolor Boulder Opal, Cushion, Opaque
Boulder Opal Product Video (523673)

27.17ct Multicolor Boulder Opal, Cushion, Opaque

33.3 x 11.9 mm

$ 179.33

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0.82ct Multicolor Opal, Oval, Transparent

0.82ct Multicolor Opal, Oval, Transparent

8 x 6 mm (calibrated)

$ 22.49

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0.82ct Multicolor Opal, Round, Opaque

0.82ct Multicolor Opal, Round, Opaque

7 mm (calibrated)

$ 32.47

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3.59ct Goldenrod Yellow Cat's Eye Opal, Oval, Opaque

3.59ct Goldenrod Yellow Cat's Eye Opal, Oval, Opaque

12.4 x 9.2 mm

$ 12.92

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5.38ct Multicolor Opal, Pear Shape, Transparent

5.38ct Multicolor Opal, Pear Shape, Transparent

13 x 13 mm (calibrated)

$ 161.40

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1.21ctw Multicolor Opal, Oval, Opaque

1.21ctw Multicolor Opal, Oval, Opaque

7 x 5 mm (calibrated)

$ 47.92

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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 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

Have made 2 purchases so far from GemSelect and they have been amazing! Anytime I requested additional info, videos or pictures of a particular item, the response was always timely and helpful. This is a great place to buy, if you are looking for loose stones. Highly recommend!

Posted By Britnee Rose in September, 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

They have a wonderful selection of gems of all sorts, shapes, cuts, and quality. I am very particular about the quality of stones I buy, and found many with VVS clarity and excellent cut and polish. I am thrilled with each of the stones I purchased, and would definitely recommend GemSelect to everyone.

Posted By Debsarabs in February, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Easy to use website

Posted By Mel in February, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

I love the quality, package and info of your gems.

Posted By Diana in April, 2025
Source: Bizrate
→ View All GemSelect Reviews on Bizrate
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