X
Gemstone Search

Your Details

Please fill in your email address

Please fill in a password

Forgot your password?

Opal Gemstones - Certified Loose Opals - Buy Now

Opal gemstones at GemSelect, where vibrant play-of-color meets exceptional quality. Our collection features certified black opals, fire opals, boulder opals, and more, available in shapes like oval, pear, and round. Perfect for jewelry or collecting, our loose opals range from $10 to over $1000, all in stock with global shipping. For detailed insights, check out our opal information page.

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
Clear All

36.33ct Multicolor Opal, Oval, Opaque

32.2 x 22.5 mm

$ 130.79

View Details

19.94ct Multicolor Boulder Opal, Marquise, Opaque

36.4 x 16.3 mm

$ 131.60

View Details

2.17ct Multicolor Black Opal, Pear Shape, Translucent

13.4 x 8.3 mm

$ 65.75

View Details

1.34ct Multicolor Black Opal, Oval, Translucent

9 x 7 mm (calibrated)

$ 30.86

View Details

34.16ct Multicolor Boulder Opal, Oval, Opaque

23.4 x 19.6 mm

$ 316.10

View Details

35.99ct Multicolor Boulder Opal, Fancy, Opaque

45 x 23.8 mm

$ 129.56

View Details

0.87ct Multicolor Opal, Round, Transparent

7 mm (calibrated)

$ 21.71

View Details

3.78ct Multicolor Opal, Pear Shape, Translucent

13.6 x 10 mm

$ 99.79

View Details

1.84ct Multicolor Opal, Marquise, Transparent

13.8 x 6.7 mm

$ 77.28

View Details

4.44ct Multicolor Opal, Pear Shape, Transparent

13 x 13 mm (calibrated)

$ 111.00

View Details

32.39ct Brownish Green Cat's Eye Opal, Oval, Opaque

22.3 x 20.3 mm

$ 97.18

View Details

30.94ct Multicolor Boulder Opal, Fancy, Opaque

25.4 x 20.1 mm

$ 204.20

View Details

42.73ct Multicolor Boulder Opal, Oval, Opaque

27 x 20 mm (calibrated)

$ 394.82

View Details

2.79ctw Multicolor Black Opal, Oval, Translucent

9 x 7 mm (calibrated)

$ 92.07

View Details

17.03ct Multicolor Boulder Opal, Fancy, Opaque

26.9 x 13.5 mm

$ 112.40

View Details

2.71ct Intense Red Orange Fire Opal, Oval, Transparent

11.9 x 9.2 mm

$ 87.61

View Details

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

25.1 x 20.8 mm

$ 116.64

View Details

1.25ct Multicolor Black Opal, Oval, Translucent

9 x 7 mm (calibrated)

$ 49.50

View Details

6.68ct Multicolor Black Opal, Marquise, Opaque

20 x 10 mm (calibrated)

$ 240.48

View Details

1.43ctw Multicolor Opal, Oval, Opaque

8 x 6 mm (calibrated)

$ 47.19

View Details

30.50ct Multicolor Boulder Opal, Pear Shape, Translucent

30 x 22 mm (calibrated)

$ 201.30

View Details

5.66ct Multicolor Black Opal, Oval, Opaque

16 x 12 mm (calibrated)

$ 169.80

View Details

8.17ct Earthy Brown Cat's Eye Opal, Oval, Translucent

13.8 x 12.7 mm

$ 26.96

View Details

0.84ct Multicolor Chocolate Opal, Round, Translucent

8 mm (calibrated)

$ 33.26

View Details

Why Choose GemSelect for Opal Gemstones?

  • Certified Quality: All our opals are natural and certified, ensuring authenticity and value.
  • Diverse Selection: From black opal gemstones to fire opal gemstones, we offer a variety of types and colors.
  • Competitive Pricing: Find opal stones for every budget, from affordable to high-end.
  • Global Delivery: Enjoy secure worldwide shipping for all loose opals.
  • Expert Guidance: Our detailed descriptions and opal grading information help you make informed choices.

Explore related gemstones like moonstone, amethyst, or labradorite for complementary additions to your collection, or dive deeper into the world of precious opals to discover their unique charm.

Opal Gemstones for jewelry making and Collecting

Frequently Asked Questions About Opal Gemstones

What are the main types of opal gemstones available?

At GemSelect, we offer a variety of opal gemstones, including black opal, known for its dark body tone and vibrant play-of-color; fire opal, prized for its warm orange to red hues; boulder opal, featuring natural matrix patterns; Ethiopian opal, celebrated for its affordability and bright colors; and white opal, with a lighter base tone. Each type offers unique aesthetics for jewelry designs or gemstone collecting.

How do I know if an opal is natural or treated?

Natural opals typically display organic inclusions and imperfections, while treated opals, such as opal doublets or opal triplets, may have enhanced layers for durability or appearance. At GemSelect, all our loose opals are certified, and any treatments are clearly disclosed in the product details to ensure transparency and trust.

What is the price range for opal gemstones?

Our opal gemstones range from as low as $10 for smaller or more common stones, such as Ethiopian opals, to over $1000 for rare, high-quality black opals or Australian opals. Prices vary based on size, play-of-color, clarity, and origin, catering to every budget.

Are opal gemstones suitable for everyday jewelry?

Opal gemstones, with a Mohs hardness of 5.5-6.5, are relatively soft, making them best suited for jewelry like pendants, earrings, or occasional-wear rings. To maintain their beauty, avoid exposure to heat, chemicals, or rough handling. Our opal cabochons and loose opals are ideal for custom designs with proper care.

How should I care for my opal gemstones?

To preserve your opal gemstones, clean them gently with a soft, damp cloth and mild soap, avoiding harsh chemicals or ultrasonic cleaners. Store loose opals separately to prevent scratches, especially for delicate types like fire opal or Ethiopian opal, and keep them away from extreme heat to maintain their play-of-color and opal grading.

Why are Australian opals so highly valued?

Australian opals, particularly black opals from Lightning Ridge, are prized for their intense play-of-color and dark body tone, which enhances their visual appeal. Their rarity and exceptional quality make them a top choice for luxury jewelry and gemstone collectors worldwide.

What is an opal cabochon, and why is it popular?

An opal cabochon is a polished, non-faceted gem with a smooth, rounded surface that highlights the stone’s play-of-color. This cut is popular for opal jewelry because it showcases the gem’s natural beauty, making it a favorite for custom opal rings, pendants, and earrings.

Can I use opal gemstones for engagement rings?

While opal gemstones are stunning, their softness (5.5-6.5 on the Mohs scale) makes them less ideal for daily-wear engagement rings. For durability, consider pairing opals with harder gemstones like sapphire or setting them in protective designs. Our loose opals are perfect for creating unique, special-occasion rings.

How does GemSelect ensure the quality of its opal gemstones?

Every opal gemstone at GemSelect is carefully inspected and certified for authenticity. We provide detailed descriptions, including opal grading, origin, and any treatments, ensuring you receive high-quality natural opals for your jewelry or collection.

Are opal doublets and triplets worth buying?

Opal doublets and opal triplets are more affordable alternatives to solid natural opals, offering similar visual appeal with a thin layer of opal backed or capped for stability. They’re excellent for budget-conscious buyers looking for vibrant play-of-color in jewelry designs.

Enlarged Gemstone Image