Natural Opal for Sale - Certified Opals

Buy all types of natural Opal gemstones such as Australian Opal, White Opal, Fire Opal, Ethiopian Opal, Boulder Opal and more online. Our inventory of opal for sale comes in the whole rainbow of colors which include black, white, red, orange, multicolor and much more. Select unique single Opals, matched pairs or lots which are perfect for any type of jewelry such as rings, earrings, wedding bands, pendants and more. The large variety of colors, shapes and sizes makes it easy for every jeweler, designer and collector to find something suitable. All our Opals for Sale are natural which can be certified by well known gemstone labs like ICA Gemlab.

Gemstones A-Z

Actinolite Cat's Eye 58 Agate 807 Agate Geode 19 Almandine Garnet 35 Amazonite 212 Amethyst 3,144 Amethyst Geode Slice 80 Ametrine 206 Ammolite 452 Andalusite 204 Andesine Labradorite 149 Apatite 562 Aquamarine 84 Aventurine 129 Azotic Topaz 13 Azurite 20 Black Opal 327 Bloodstone 256 Boulder Opal 216 Carnelian 91 Cat's Eye Apatite 39 Cat's Eye Aquamarine 18 Cat's Eye Gemstones 1,110 Cat's Eye Moonstone 67 Cat's Eye Opal 168 Cat's Eye Scapolite 97 Chalcedony 124 Charoite 166 Chocolate Opal 75 Chrome Diopside 1 Chrysoberyl 100 Chrysoberyl Cat's Eye 177 Chrysocolla 63 Chrysoprase 33 Citrine 4,257 Color Change Gemstones 831 Color-Change Diaspore 713 Color-Change Fluorite 59 Color-Change Garnet 59 Coral 293 Demantoid Garnet 248 Dendritic Agate 246 Diamond 698 Druzy Amethyst 5 Druzy Azurite 20 Druzy Citrine 51 Druzy Variscite 132 Emerald 880 Enstatite 5 Fire Agate 338 Fire Opal 168 Fluorite 205 Fossil Coral 330 Garnet 5,850 Golden Beryl 182 Grandidierite 186 Grossularite Garnet 50 Hematite 372 Hemimorphite 46 Hemimorphite Druzy 46 Hessonite Garnet 2,250 Hiddenite 17 Howlite 142 Idocrase 27 Imperial Topaz 12 Iolite 170 Jadeite 319 Jasper 1,362 Kornerupine 243 Kunzite 438 Kyanite 719 Labradorite 695 Lapis Lazuli 339 Larimar 153 Lepidolite 49 Malachite 243 Malaya Garnet 149 Mali Garnet 12 Maw-Sit-Sit 132 Moonstone 974 Morganite 910 Moss Agate 69 Mother Of Pearl 102 Mystic Quartz 420 Mystic Topaz 28 Nuummite 121 Obsidian 247 Onyx 288 Opal 1,211 Opal Doublet 5 Opal In Matrix 20 Peanut Wood 15 Pearl 19 Peridot 1,401 Pietersite 655 Prehnite 837 Psilomelane Dendrite 25 Pyrite 16 Pyrope Garnet 1,849 Quartz 1,320 Quartz Cat's Eye 85 Quartz With Hedenbergite 9 Quartz With Marcasite 190 Rainbow Moonstone 624 Rainbow Pyrite 183 Rhodochrosite 157 Rhodolite Garnet 457 Rhodonite 38 Rose Quartz 747 Rubellite Tourmaline 12 Ruby 1,265 Ruby In Fuchsite 93 Ruby-Zoisite 220 Rutile Quartz 540 Sapphire 5,100 Scapolite 97 Scolecite 34 Seraphinite 50 Serpentine 80 Sillimanite 73 Sillimanite Cat's Eye 401 Smithsonite 1 Smoky Quartz 1,064 Snowflake Obsidian 35 Sodalite 34 Spectrolite 147 Spessartite Garnet 380 Sphalerite 359 Sphene 505 Spinel 959 Star Diopside 7 Star Garnet 50 Star Gemstones 843 Star Moonstone 98 Star Rose Quartz 18 Star Ruby 257 Star Sapphire 410 Star Sunstone 3 Strawberry Quartz 951 Sunstone 529 Tanzanite 836 Tiger's Eye 861 Tiger's Eye Matrix 166 Topaz 4,621 Tourmaline 2,437 Tsavorite Garnet 251 Turquoise 94 Uvarovite Garnet Drusy 60 Variscite 8 Zircon 2,062

Bi-color

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Blue

Brown

Golden

Gray

Green Opal

Multicolor Opal

Orange

Pink

Purple

Red

Turquoise

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Yellow

Opal Single

Opal Pairs

Opal Lots

Opal Faceted

Opal Cabochons

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Photos are of Actual Products for Sale

25.23 ct Baguette Cat's Eye Opal, 21 x 15.9 mm From Brazil

Natural Cat's Eye Opal, Qty: 1 pc | 25.23 carat weight Cat's Eye Opal

25.23ct1 Piece

$ 63.08

21 x 15.9 mm

Item Description
Stone Type:	Loose Cat's Eye Opal
Cat's Eye Opal Weight:	25.23 ct Cat's Eye Opal
Cat's Eye Opal Shape:	Baguette Cabochon Cat's Eye Opal
Cat's Eye Opal Size:	21 x 15.9 mm Cat's Eye Opal
Cat's Eye Opal Color:	Earth Green Cat's Eye Opal
Cat's Eye Opal Clarity:	Opaque Cat's Eye Opal
Cat's Eye Opal Origin:	Brazil Cat's Eye Opal
Cat's Eye Opal Treatment:	Untreated
Cat's Eye Opal Quantity:	1
Cat's Eye Opal Certificate:	GemSelect
Product Description:

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28.65 ct Baguette Cat's Eye Opal, 19.1 x 15.7 mm From Brazil

Natural Cat's Eye Opal, Qty: 1 pc | 28.65 carat weight Cat's Eye Opal

28.65ct1 Piece

$ 71.63

19.1 x 15.7 mm

Item Description
Stone Type:	Loose Cat's Eye Opal
Cat's Eye Opal Weight:	28.65 ct Cat's Eye Opal
Cat's Eye Opal Shape:	Baguette Cabochon Cat's Eye Opal
Cat's Eye Opal Size:	19.1 x 15.7 mm Cat's Eye Opal
Cat's Eye Opal Color:	Medium Green Cat's Eye Opal
Cat's Eye Opal Clarity:	Opaque Cat's Eye Opal
Cat's Eye Opal Origin:	Brazil Cat's Eye Opal
Cat's Eye Opal Treatment:	Untreated
Cat's Eye Opal Quantity:	1
Cat's Eye Opal Certificate:	GemSelect
Product Description:

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1.83 carat Baguette Cut Opal, loose Certified Opal from Ethiopia, Natural Untreated Gem, 8.9 x 6.9 mm

Natural Opal, Qty: 1 pc | 1.83 carat weight Opal

1.83ct1 Piece

$ 64.05

8.9 x 6.9 mm

Item Description
Stone Type:	Loose Opal
Opal Weight:	1.83 ct Opal
Opal Shape:	Baguette Cabochon Opal
Opal Size:	8.9 x 6.9 mm Opal
Opal Color:	Multicolor Opal
Opal Clarity:	Translucent Opal
Opal Origin:	Ethiopia Opal
Opal Treatment:	Untreated
Opal Quantity:	1
Opal Certificate:	GemSelect
Product Description:

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24.33 ct Baguette Opal in Matrix, 27.2 x 16.9 mm From Honduras

Natural Opal in Matrix, Qty: 1 pc | 24.33 carat weight Opal in Matrix

24.33ct1 Piece

$ 64.96

27.2 x 16.9 mm

Item Description
Stone Type:	Loose Opal in Matrix
Opal in Matrix Weight:	24.33 ct Opal in Matrix
Opal in Matrix Shape:	Baguette Cabochon Opal in Matrix
Opal in Matrix Size:	27.2 x 16.9 mm Opal in Matrix
Opal in Matrix Color:	Multicolor Opal in Matrix
Opal in Matrix Clarity:	Opaque Opal in Matrix
Opal in Matrix Origin:	Honduras Opal in Matrix
Opal in Matrix Treatment:	Untreated
Opal in Matrix Quantity:	1
Opal in Matrix Certificate:	GemSelect
Product Description:

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33.07 carat Baguette Cut Opal, loose Certified Opal from Australia, Natural Untreated Gem, 25 x 22.1 mm

Natural Opal, Qty: 1 pc | 33.07 carat weight Opal

33.07ct1 Piece

$ 99.21

25 x 22.1 mm

Item Description
Stone Type:	Loose Opal
Opal Weight:	33.07 ct Opal
Opal Shape:	Baguette Cabochon Opal
Opal Size:	25 x 22.1 mm Opal
Opal Color:	Multicolor Opal
Opal Clarity:	Opaque Opal
Opal Origin:	Australia Opal
Opal Treatment:	Untreated
Opal Quantity:	1
Opal Certificate:	GemSelect
Product Description:

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1.49 carat Baguette Cut Opal, loose Certified Opal from Ethiopia, Natural Untreated Gem, 9 x 6.9 mm

Natural Opal, Qty: 1 pc | 1.49 carat weight Opal

1.49ct1 Piece

$ 45.89

9 x 6.9 mm

Item Description
Stone Type:	Loose Opal
Opal Weight:	1.49 ct Opal
Opal Shape:	Baguette Cabochon Opal
Opal Size:	9 x 6.9 mm Opal
Opal Color:	Multicolor Opal
Opal Clarity:	Transparent Opal
Opal Origin:	Ethiopia Opal
Opal Treatment:	Untreated
Opal Quantity:	1
Opal Certificate:	GemSelect
Product Description:

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31.09 ct Baguette Cat's Eye Opal, 23.7 x 16.6 mm From Brazil

Natural Cat's Eye Opal, Qty: 1 pc | 31.09 carat weight Cat's Eye Opal

31.09ct1 Piece

$ 77.73

23.7 x 16.6 mm

Item Description
Stone Type:	Loose Cat's Eye Opal
Cat's Eye Opal Weight:	31.09 ct Cat's Eye Opal
Cat's Eye Opal Shape:	Baguette Cabochon Cat's Eye Opal
Cat's Eye Opal Size:	23.7 x 16.6 mm Cat's Eye Opal
Cat's Eye Opal Color:	Warm Green Cat's Eye Opal
Cat's Eye Opal Clarity:	Opaque Cat's Eye Opal
Cat's Eye Opal Origin:	Brazil Cat's Eye Opal
Cat's Eye Opal Treatment:	Untreated
Cat's Eye Opal Quantity:	1
Cat's Eye Opal Certificate:	GemSelect
Product Description:

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8.92 ct Baguette Opal in Matrix, 14.1 x 11.8 mm From Honduras

Natural Opal in Matrix, Qty: 1 pc | 8.92 carat weight Opal in Matrix

8.92ct1 Piece

$ 133.09

14.1 x 11.8 mm

Item Description
Stone Type:	Loose Opal in Matrix
Opal in Matrix Weight:	8.92 ct Opal in Matrix
Opal in Matrix Shape:	Baguette Cabochon Opal in Matrix
Opal in Matrix Size:	14.1 x 11.8 mm Opal in Matrix
Opal in Matrix Color:	Multicolor Opal in Matrix
Opal in Matrix Clarity:	Opaque Opal in Matrix
Opal in Matrix Origin:	Honduras Opal in Matrix
Opal in Matrix Treatment:	Untreated
Opal in Matrix Quantity:	1
Opal in Matrix Certificate:	GemSelect
Product Description:

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This Page in Other Languages

Opals are thought of by many as the most beautiful and exciting of all gemstones. The fascinating play-of-color in which a rainbow of hues dances before your eyes is one of the true wonders of nature.

Opals are a unique gemstone in every sense of the word, from their crystal structure made up of millions of tiny spheres to their transparent, translucent or opaque bodies. They can be a single vivid color or a mix of all imaginable colors, have a light white background or a deep dark backing - the variety is endless.

Opal Colors

Describing the color of an opal is not simple. Some opals possess all the colors of the rainbow but never in regular lines or bands - more like an abstract painting or a random composition.

I will attempt to categorize opal colors as best I can.

We have the most common. White opals with a pale or light body tone upon which the kaleidoscopic colors will be displayed.

Then we have Black opals which have a dark body or background for the colors to contrast against in a dramatic manner.

There are also Fire opals which are generally all one color but the color is a vivid and intense hue often red, yellow or orange as the name may suggest.

The variety of opal colors is too vast to go into much detail but please read our article on Opals for more information.

Opal Species

The types of gemstones that fall under the name of opal are almost as endless as the colors they come in.

Just some of the more well-known ones are:

And we could go on and on!

Opal Price

As with most gemstones, it is the color of the opal that is the number one consideration when appraising its price.

Opals are such an irregular gemstone so there will always be different opinions about which is the most beautiful and we all have our own preferences but over the years certain trends have proved more valuable than others.

For example, an opal that has a dominant red color covering much of the gemstone surface will be very highly valued.

As a very general rule, as you move down the color spectrum from red and orange through green to blue the price lessens more and more.

The direction of the color is an aspect not found in many other stones. Because of the crystal structure of opals, some colors will appear clearer and brighter from one angle more than another.

Other factors have to be taken into account of course with color coverage, contrasts between the color and the background, color intensity and so on.

Carat Weight

Once an opal has been evaluated according to its color, intensity, play-of-color, coverage and so on it is given a price per carat to calculate the gemstone's total value.

Australian opals can be priced as low as $20 per carat all the way up to as much as $1000 per carat for the finest examples.

Fire Opals reach $15 - $100 per carat and Boulder Opals can be found at prices of $5 - $300 per carat depending on quality.

Treatments

Usually Opals are not treated other than by cutting and shaping the stone to capture the best color and pattern and then polishing it.

Some opals look better with a stark contrast between a dark background and a bright color up front. To his end smoke can be introduced into the gemstone's pores to darken the stone. For the same reasons, black opals can be treated with a sugar-acid solution.

A totally accepted form of treatment for opals is the doublet or triplet where a thin layer of opal is mounted onto a durable backing and sometimes given a clear top. This protects the very thin and fragile opal material.

All treatments received by any of our gemstones are clearly disclosed.

Where are Opals found?

Australia is the most famous source of opals with around 90% of the world's supplies originating there. Ethiopia has become a significant player in the Black Opal trade while Fire Opals are most often found in Mexico.

What jewelry is Opal suitable for?

Opals have a rating of 5.5 to 6.5 on Mohs hardness scale. This would normally make them a little bit fragile for many types of jewelry items and not suitable for daily wear.

However gemstones such as Boulder Opals and Matrix Opals are still attached to the durable rocks they formed in so are much tougher than the rating would suggest.

Opal couplets and triplets are also designed to be worn on a regular basis.

Large and striking opals cut into interesting odd shapes can help create wonderful and unique jewelry items, especially pendants, brooches and earrings where durability is not such an issue.

Birthstones and Anniversaries

Opals are the birthstone of October and would make an ideal gift for anyone who has a birthday in that month.

An opal is the traditional gemstone gift for the 14th wedding anniversary.

Read All

Gemstone Information

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