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 812 Agate Geode 19 Almandine Garnet 35 Amazonite 213 Amethyst 3,127 Amethyst Geode Slice 80 Ametrine 206 Ammolite 452 Andalusite 204 Andesine Labradorite 149 Apatite 562 Aquamarine 90 Aventurine 132 Azotic Topaz 13 Azurite 20 Black Opal 329 Bloodstone 256 Boulder Opal 216 Carnelian 91 Cat's Eye Apatite 39 Cat's Eye Aquamarine 18 Cat's Eye Gemstones 1,111 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 178 Chrysocolla 63 Chrysoprase 33 Citrine 4,250 Color Change Gemstones 830 Color-Change Diaspore 712 Color-Change Fluorite 59 Color-Change Garnet 59 Coral 293 Demantoid Garnet 248 Dendritic Agate 242 Diamond 698 Druzy Amethyst 5 Druzy Azurite 20 Druzy Citrine 51 Druzy Variscite 132 Emerald 882 Enstatite 5 Fire Agate 338 Fire Opal 168 Fluorite 205 Fossil Coral 330 Garnet 5,846 Golden Beryl 182 Grandidierite 186 Grossularite Garnet 50 Hawk's Eye 1 Hematite 372 Hemimorphite 46 Hemimorphite Druzy 46 Hessonite Garnet 2,250 Hiddenite 17 Howlite 142 Idocrase 27 Imperial Topaz 12 Iolite 171 Jade Gemstones 319 Jadeite 319 Jasper 1,362 Kornerupine 244 Kunzite 438 Kyanite 697 Labradorite 667 Lapis Lazuli 341 Larimar 153 Lepidolite 49 Malachite 243 Malaya Garnet 149 Mali Garnet 12 Maw-Sit-Sit 132 Moonstone 954 Morganite 896 Moss Agate 69 Mother Of Pearl 102 Mystic Quartz 419 Mystic Topaz 28 Nuummite 121 Obsidian 247 Onyx 288 Opal 1,213 Opal Doublet 5 Opal In Matrix 20 Peanut Wood 15 Pearl 19 Peridot 1,383 Pietersite 648 Prehnite 837 Psilomelane Dendrite 25 Pyrite 16 Pyrope Garnet 1,851 Quartz 1,323 Quartz Cat's Eye 85 Quartz With Hedenbergite 9 Quartz With Marcasite 190 Rainbow Moonstone 624 Rainbow Pyrite 183 Rhodochrosite 159 Rhodolite Garnet 457 Rhodonite 38 Rose Quartz 747 Rubellite Tourmaline 12 Ruby 1,264 Ruby In Fuchsite 93 Ruby-Zoisite 220 Rutile Quartz 540 Sapphire 5,122 Scapolite 97 Scolecite 34 Seraphinite 50 Serpentine 80 Sillimanite 73 Sillimanite Cat's Eye 401 Smithsonite 1 Smoky Quartz 1,069 Snowflake Obsidian 35 Sodalite 34 Spectrolite 147 Spessartite Garnet 382 Sphalerite 359 Sphene 506 Spinel 959 Star Diopside 8 Star Garnet 50 Star Gemstones 847 Star Moonstone 98 Star Rose Quartz 18 Star Ruby 257 Star Sapphire 413 Star Sunstone 3 Strawberry Quartz 951 Sunstone 509 Tanzanite 838 Tiger's Eye 861 Tiger's Eye Matrix 167 Topaz 4,605 Tourmaline 2,417 Tsavorite Garnet 243 Turquoise 95 Uvarovite Garnet Drusy 60 Variscite 8 Zircon 2,062

Bi-color

Black

Blue

Brown

Golden

Gray

Green

Multicolor Opal

Orange

Pink

Purple

Red

Turquoise

Violet

White

Yellow

Clear Colors

Opal Single

Opal Pairs

Opal Lots

Opal Faceted

Opal Cabochons

Size Ranges Calibrated Sizes

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Photos are of Actual Products for Sale

2.03 carat Round Opal, loose Certified Opal from Ethiopia, Natural Untreated Gems, 6.9 mm

Natural Opal, Qty: 2 pcs | 2.03 carat weight Opal

2.03ct (total)2 Pieces

$ 50.04

6.9 mm

Item Description
Stone Type:	Loose Opal
Opal Weight:	1.02 ct Opal
Opal Shape:	Round Cabochon Opal
Opal Size:	6.9 mm Opal
Opal Color:	Multicolor Opal
Opal Clarity:	Transparent Opal
Opal Origin:	Ethiopia Opal
Opal Treatment:	Untreated
Opal Quantity:	2
Opal Certificate:	GemSelect
Product Description:

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2.15 carat Round Opal, loose Certified Opal from Ethiopia, Natural Untreated Gems, 7.2 mm

Natural Opal, Qty: 2 pcs | 2.15 carat weight Opal

2.15ct (total)2 Pieces

$ 53.00

7.2 mm

Item Description
Stone Type:	Loose Opal
Opal Weight:	1.08 ct Opal
Opal Shape:	Round Cabochon Opal
Opal Size:	7.2 mm Opal
Opal Color:	Multicolor Opal
Opal Clarity:	Translucent Opal
Opal Origin:	Ethiopia Opal
Opal Treatment:	Untreated
Opal Quantity:	2
Opal Certificate:	GemSelect
Product Description:

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2.07 carat Round Opal, loose Certified Opal from Ethiopia, Natural Untreated Gems, 7 mm

Natural Opal, Qty: 2 pcs | 2.07 carat weight Opal

2.07ct (total)2 Pieces

$ 51.03

7 mm

Item Description
Stone Type:	Loose Opal
Opal Weight:	1.04 ct Opal
Opal Shape:	Round Cabochon Opal
Opal Size:	7 mm Opal
Opal Color:	Multicolor Opal
Opal Clarity:	Transparent Opal
Opal Origin:	Ethiopia Opal
Opal Treatment:	Untreated
Opal Quantity:	2
Opal Certificate:	GemSelect
Product Description:

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1.92 carat Round Opal, loose Certified Opal from Ethiopia, Natural Untreated Gems, 7.1 mm

Natural Opal, Qty: 2 pcs | 1.92 carat weight Opal

1.92ct (total)2 Pieces

$ 43.03

7.1 mm

Item Description
Stone Type:	Loose Opal
Opal Weight:	0.96 ct Opal
Opal Shape:	Round Cabochon Opal
Opal Size:	7.1 mm Opal
Opal Color:	Multicolor Opal
Opal Clarity:	Transparent Opal
Opal Origin:	Ethiopia Opal
Opal Treatment:	Untreated
Opal Quantity:	2
Opal Certificate:	GemSelect
Product Description:

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1.79 carat Round Opal, loose Certified Opal from Ethiopia, Natural Untreated Gems, 7.1 mm

Natural Opal, Qty: 2 pcs | 1.79 carat weight Opal

1.79ct (total)2 Pieces

$ 44.12

7.1 mm

Item Description
Stone Type:	Loose Opal
Opal Weight:	0.90 ct Opal
Opal Shape:	Round Cabochon Opal
Opal Size:	7.1 mm Opal
Opal Color:	Multicolor Opal
Opal Clarity:	Transparent Opal
Opal Origin:	Ethiopia Opal
Opal Treatment:	Untreated
Opal Quantity:	2
Opal 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.

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Gemstone Information

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