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Buy Natural Opal Gemstones Online - Certified Loose Opals

Buy Natural Opal Gemstones Online - Certified Loose Opals

Explore the captivating allure of natural, certified loose opal gemstones available for purchase at GemSelect. Our assortment features black, white, and fire opals in diverse shapes including oval, round, pear, and cushion. These gems exhibit breathtaking play-of-color in vivid tones, with prices spanning from $10 to more than $1000. All pieces are readily in stock and set for international delivery, making them an excellent choice for your upcoming jewelry project! For detailed insights, check out our opal information page.

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1.78ctw Natural Multicolor Opal, Oval, Transparent, Photo A
Opal Product Video (548001)

1.78ctw Natural Multicolor Opal, Oval, Transparent

Opal

1.78ct total2 pcs
$ 534.00
8 x 6 mm (calibrated)
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20.09ct Natural Multicolor Opal, Pear Shape, Opaque, Photo A

20.09ct Natural Multicolor Opal, Pear Shape, Opaque

Opal

20.09ct1 pc
$ 72.32
24.1 x 19.7 mm
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0.79ct Natural Multicolor Opal, Oval, Opaque, Photo A

0.79ct Natural Multicolor Opal, Oval, Opaque

Opal

0.79ct1 pc
$ 28.44
8 x 6 mm (calibrated)
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19.38ct Natural Multicolor Opal, Oval, Opaque, Photo A

19.38ct Natural Multicolor Opal, Oval, Opaque

Opal

19.38ct1 pc
$ 69.77
23 x 16.6 mm
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1.25ct Natural Multicolor Opal, Oval, Transparent, Photo A

1.25ct Natural Multicolor Opal, Oval, Transparent

Opal

1.25ct1 pc
$ 37.50
10 x 7 mm (calibrated)
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1.31ct Natural Multicolor Opal, Oval, Opaque, Photo A

1.31ct Natural Multicolor Opal, Oval, Opaque

Opal

1.31ct1 pc
$ 47.16
9 x 7 mm (calibrated)
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7.25ct Natural Multicolor Opal, Oval, Translucent, Photo A
Opal Product Video (673718)

7.25ct Natural Multicolor Opal, Oval, Translucent

Opal

7.25ct1 pc
$ 217.50
21 x 11.1 mm
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1.02ct Natural Multicolor Opal, Oval, Translucent, Photo A

1.02ct Natural Multicolor Opal, Oval, Translucent

Opal

1.02ct1 pc
$ 38.65
8.6 x 6.8 mm
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1.07ct Natural Multicolor Opal, Oval, Transparent, Photo A

1.07ct Natural Multicolor Opal, Oval, Transparent

Opal

1.07ct1 pc
$ 59.32
9 x 7 mm (calibrated)
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0.59ct Natural Multicolor Opal, Oval, Opaque, Photo A

0.59ct Natural Multicolor Opal, Oval, Opaque

Opal

0.59ct1 pc
$ 21.24
7 x 5.2 mm
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1.07ct Natural Multicolor Opal, Oval, Transparent, Photo A

1.07ct Natural Multicolor Opal, Oval, Transparent

Opal

1.07ct1 pc
$ 32.10
9.7 x 7.4 mm
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0.59ct Natural Multicolor Opal, Oval, Opaque, Photo A

0.59ct Natural Multicolor Opal, Oval, Opaque

Opal

0.59ct1 pc
$ 21.24
7.1 x 5.2 mm
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1.96ctw Natural Multicolor Opal, Round, Transparent, Photo A

1.96ctw Natural Multicolor Opal, Round, Transparent

Opal

1.96ct total5 pcs
$ 55.14
5 mm (calibrated)
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1.59ctw Natural Multicolor Opal, Pear Shape, Transparent, Photo A

1.59ctw Natural Multicolor Opal, Pear Shape, Transparent

Opal

1.59ct total2 pcs
$ 47.70
9 x 6 mm (calibrated)
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7.16ctw Natural Multicolor Opal, Square, Transparent, Photo A

7.16ctw Natural Multicolor Opal, Square, Transparent

Opal

7.16ct total45 pcs
$ 61.25
4.7 x 4.6 mm
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0.71ct Natural Multicolor Opal, Oval, Transparent, Photo A

0.71ct Natural Multicolor Opal, Oval, Transparent

Opal

0.71ct1 pc
$ 40.30
8 x 6 mm (calibrated)
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1.11ct Natural Multicolor Opal, Oval, Opaque, Photo A

1.11ct Natural Multicolor Opal, Oval, Opaque

Opal

1.11ct1 pc
$ 39.96
8 x 6 mm (calibrated)
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3.40ct Natural Multicolor Opal, Oval, Transparent, Photo A

3.40ct Natural Multicolor Opal, Oval, Transparent

Opal

3.40ct1 pc
$ 183.60
16.5 x 10.8 mm
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5.85ctw Natural Multicolor Opal, Square, Translucent, Photo A

5.85ctw Natural Multicolor Opal, Square, Translucent

Opal

5.85ct total30 pcs
$ 45.49
4.6 x 4.5 mm
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1.35ct Natural Multicolor Opal, Oval, Opaque, Photo A

1.35ct Natural Multicolor Opal, Oval, Opaque

Opal

1.35ct1 pc
$ 48.60
10 x 8 mm (calibrated)
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1.25ct Natural Multicolor Opal, Cushion, Transparent, Photo A

1.25ct Natural Multicolor Opal, Cushion, Transparent

Opal

1.25ct1 pc
$ 56.25
12.3 x 5.9 mm
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0.64ct Natural Multicolor Opal, Oval, Opaque, Photo A

0.64ct Natural Multicolor Opal, Oval, Opaque

Opal

0.64ct1 pc
$ 23.04
8 x 6 mm (calibrated)
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1.22ct Natural Multicolor Opal, Oval, Translucent, Photo A

1.22ct Natural Multicolor Opal, Oval, Translucent

Opal

1.22ct1 pc
$ 48.31
9 x 7 mm (calibrated)
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1.36ct Natural Multicolor Opal, Oval, Transparent, Photo A
Opal Product Video (548397)

1.36ct Natural Multicolor Opal, Oval, Transparent

Opal

1.36ct1 pc
$ 448.80
9 x 7 mm (calibrated)
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1.76ct Natural Multicolor White Opal, Oval, Transparent, Photo A

1.76ct Natural Multicolor White Opal, Oval, Transparent

Opal

1.76ct1 pc
$ 52.80
12.3 x 8.7 mm
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1.17ctw Natural Multicolor Opal, Oval, Opaque, Photo A

1.17ctw Natural Multicolor Opal, Oval, Opaque

Opal

1.17ct total2 pcs
$ 42.12
7 x 5 mm (calibrated)
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0.82ct Natural Multicolor Opal, Oval, Opaque, Photo A

0.82ct Natural Multicolor Opal, Oval, Opaque

Opal

0.82ct1 pc
$ 29.52
8 x 6 mm (calibrated)
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1.52ct Natural Multicolor Opal, Oval, Translucent, Photo A

1.52ct Natural Multicolor Opal, Oval, Translucent

Opal

1.52ct1 pc
$ 46.20
11.4 x 7.4 mm
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1.29ct Natural Multicolor Opal, Oval, Translucent, Photo A

1.29ct Natural Multicolor Opal, Oval, Translucent

Opal

1.29ct1 pc
$ 39.22
10 x 8 mm (calibrated)
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2.20ct Natural Multicolor Opal, Pear Shape, Translucent, Photo A

2.20ct Natural Multicolor Opal, Pear Shape, Translucent

Opal

2.20ct1 pc
$ 66.88
14.8 x 8.8 mm
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1.18ct Natural Multicolor Opal, Oval, Transparent, Photo A

1.18ct Natural Multicolor Opal, Oval, Transparent

Opal

1.18ct1 pc
$ 35.40
9.2 x 6.6 mm
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16.51ct Natural Earth Green Opal, Oval, Opaque, Photo A

16.51ct Natural Earth Green Opal, Oval, Opaque

Opal

16.51ct1 pc
$ 42.60
19.6 x 16.1 mm
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FAQs

What makes loose opals unique compared to other gemstones?

Loose opals are known for their vibrant play-of-color, a dazzling phenomenon where colors shift depending on the light. This makes natural opals such as Ethiopian opals and Australian opals stand out from other loose gemstones.

What is the difference between a black opal and a fire opal?

Black opals have a dark body tone, enhancing their play-of-color, while fire opals are prized for their bright orange or red hues and do not always display the same color shifting. Both are highly sought-after varieties of loose opals.

How are opal doublets and opal triplets different from natural opals?

Opal doublets are made by layering a thin slice of precious opal onto a backing, while opal triplets add an extra protective layer on top. These types of opals are more affordable than solid natural opals, like those found in Ethiopian opal or Australian opal varieties.

How can I tell if an opal is natural or treated?

A natural opal typically has more visible inclusions and imperfections, whereas treated opals, such as opal doublets and opal triplets, are crafted with enhancements. A certified opal grading can help you identify the authenticity and quality of your loose opal.

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

An opal cabochon is a smooth, rounded gem cut without facets, allowing the stone's play-of-color to be fully appreciated. These loose opals are often used in classic and custom opal jewelry designs.

Why are Ethiopian opals and Australian opals so popular?

Ethiopian opals are admired for their bright, diverse colors and affordability, while Australian opals, especially black opals, are highly prized for their deep, vibrant hues and exceptional play-of-color.

How should I care for my loose opals?

To maintain the beauty of your loose opal, avoid exposure to high heat or chemicals, and clean it gently with a soft cloth. Opal cabochons, opal doublets, and fire opals should be stored separately to prevent scratches, preserving their opal grading and value.

What are opal gemstones?

Opal gemstones are natural stones known for their unique play-of-color, displaying flashes of various colors like blue, green, red, and yellow. Types include black opal, white opal, fire opal, and boulder opal.

What types of opal gemstones are available?

Available opals include black opal, white opal, fire opal, boulder opal, and Ethiopian opal. Each type offers distinct color patterns, from the dark backdrop of black opal to the fiery hues of fire opal.

What shapes can opal gemstones be found in?

Opal gemstones come in shapes like oval, round, pear, cushion, trillion, heart, and emerald-cut, making them versatile for jewelry designs or collections.

What is the price range for opal gemstones?

Prices for opal gemstones range from $10 for smaller or common opals, like white or Ethiopian opals, to over $1000 for rare, high-quality black opals, depending on size, color play, and origin.

Are all opal gemstones in stock?

Yes, all opal gemstones listed are in stock and available for immediate purchase, ensuring fast order processing and delivery.

Is worldwide shipping available for opal gemstones?

Yes, worldwide shipping is offered for all opal gemstones, with secure and reliable delivery options to reach customers globally.

What colors can I expect from opal gemstones?

Opals display a spectrum of colors through their play-of-color, including blue, green, red, orange, and yellow. The specific colors and intensity vary by type, with black opals often showing vivid contrasts and fire opals featuring warm tones.

Are opal gemstones natural or treated?

Most opal gemstones are natural and untreated, showcasing their inherent play-of-color. Some opals, like Ethiopian opals, may be stabilized to enhance durability, and any treatments are disclosed in product details.

Are opal gemstones suitable for jewelry?

Yes, opal gemstones are popular for jewelry like rings, pendants, and earrings, but they require care due to their relative softness (5.5-6.5 on the Mohs scale). They’re best suited for pieces not exposed to heavy wear. GemSelect’s loose opals are ideal for custom designs.

How do I choose the right opal gemstone?

Consider the opal’s play-of-color, type, shape, and intended use. Black opals are prized for their bold color flashes, while fire opals suit vibrant designs. Check clarity and origin for quality, and ensure proper care for longevity.

Why choose GemSelect for opal gemstones?

GemSelect offers a wide range of natural, certified opal gemstones, all in stock with detailed descriptions and competitive prices. With worldwide shipping and a commitment to quality, it’s a trusted source for loose opals.

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 like the site, it's easy to navigate. There are sometimes items I'm looking for that aren't there, but mostly I can find what I need.

Posted By Nate in March, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I was looking for a site with every type of gem I could want for setting in luxury blades and assumed I would need to look outside the US, but GemSelect made it easy to get everything I wanted without leaving the house! Wide enough selection that I do not feel the need to look elsewhere and pricing the same.

Posted By Razormane in April, 2025
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Overall Rating -> 10 star ratings

Very fast navigation and purchase, which is good. I need to strike while the iron is hot.

Posted By Tim G. in February, 2025
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Overall Rating -> 8 star ratings

First time using this website. It was both exciting finding things in my price range and things Iam gonna save up for and use in other pieces. I love that the picture of the gem is the exact gem I'll be buying. I haven't tested the gems yes but they said they sold me 100% natural gems.

Posted By Salvo in July, 2025
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Overall Rating -> 9 star ratings

I did not have any problems

Posted By Clilrichard in January, 2025
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Overall Rating -> 10 star ratings

I enjoy doing buisness with GemSelect. It is always a pleasure and you get what you ordered!

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Overall Rating -> 10 star ratings

It was easy and to the point

Posted By Victorius in May, 2025
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Overall Rating -> 10 star ratings

I have bought from you before and have found your gems exceed my expectations. I have been very satisfied with all gems sent to me. I will be back. Thanks....

Posted By Dork in September, 2024
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Overall Rating -> 10 star ratings

I love gemstones. My father was a jeweler & I used to shop for stones for him.

Posted By Andie in September, 2024
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