Natural Black Opal for Sale - Certified Black Opals Online

Have a look and enjoy our selection of natural Black Opal for sale. We stock this beautiful gemstone in hand-selected pairs, parcels for jewelry use and singles. We do not use stock photos for our Black Opals and all other gemstones offered on our website, what you see is what you get. We offer worldwide shipping with standard or express shipping options. Black Opal is a good choice for jewelry due to its play of color and dark base-color.

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Gemstones A-Z

Actinolite Cat's Eye 58 Agate 812 Agate Geode 19 Almandine Garnet 35 Amazonite 213 Amethyst 3,136 Amethyst Geode Slice 80 Ametrine 206 Ammolite 452 Andalusite 204 Andesine Labradorite 149 Apatite 562 Aquamarine 90 Aventurine 129 Azotic Topaz 13 Azurite 20 Black Opal 327 Bloodstone 255 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 4,249 Color Change Gemstones 830 Color-Change Diaspore 712 Color-Change Fluorite 59 Color-Change Garnet 59 Coral 293 Demantoid Garnet 248 Dendritic Agate 243 Diamond 698 Druzy Amethyst 5 Druzy Azurite 20 Druzy Citrine 51 Druzy Variscite 132 Emerald 884 Enstatite 5 Fire Agate 338 Fire Opal 168 Fluorite 205 Fossil Coral 330 Garnet 5,851 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 Jade Gemstones 319 Jadeite 319 Jasper 1,362 Kornerupine 244 Kunzite 438 Kyanite 708 Labradorite 683 Lapis Lazuli 339 Larimar 153 Lepidolite 49 Malachite 243 Malaya Garnet 149 Mali Garnet 12 Maw-Sit-Sit 132 Moonstone 964 Morganite 904 Moss Agate 69 Mother Of Pearl 102 Mystic Quartz 420 Mystic Topaz 28 Nuummite 121 Obsidian 247 Onyx 288 Opal 1,212 Opal Doublet 5 Opal In Matrix 20 Peanut Wood 15 Pearl 19 Peridot 1,392 Pietersite 650 Prehnite 837 Psilomelane Dendrite 25 Pyrite 16 Pyrope Garnet 1,849 Quartz 1,321 Quartz Cat's Eye 85 Quartz With Hedenbergite 9 Quartz With Marcasite 190 Rainbow Moonstone 624 Rainbow Pyrite 183 Rhodochrosite 158 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 5,117 Scapolite 97 Scolecite 34 Seraphinite 50 Serpentine 80 Sillimanite 73 Sillimanite Cat's Eye 401 Smithsonite 1 Smoky Quartz 1,065 Snowflake Obsidian 35 Sodalite 34 Spectrolite 147 Spessartite Garnet 382 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 518 Tanzanite 836 Tiger's Eye 861 Tiger's Eye Matrix 166 Topaz 4,614 Tourmaline 2,429 Tsavorite Garnet 250 Turquoise 94 Uvarovite Garnet Drusy 60 Variscite 8 Zircon 2,062

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Photos are of Actual Products for Sale

9.18 ct Round Black Opal, 15 mm From Ethiopia

Natural Black Opal, Qty: 1 pc | 9.18 carat weight Black Opal

9.18ct1 Piece

$ 275.40

15 mm

Item Description
Stone Type:	Loose Black Opal
Black Opal Weight:	9.18 ct Black Opal
Black Opal Shape:	Round Cabochon Black Opal
Black Opal Size:	15 mm Black Opal
Black Opal Color:	Multicolor Black Opal
Black Opal Clarity:	Translucent Black Opal
Black Opal Origin:	Ethiopia Black Opal
Black Opal Treatment:	Smoked
Black Opal Quantity:	1
Black Opal Certificate:	GemSelect
Product Description:

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4.55 ct Round Black Opal, 12.1 mm From Ethiopia

Natural Black Opal, Qty: 1 pc | 4.55 carat weight Black Opal

4.55ct1 Piece

$ 136.50

12.1 mm

Item Description
Stone Type:	Loose Black Opal
Black Opal Weight:	4.55 ct Black Opal
Black Opal Shape:	Round Cabochon Black Opal
Black Opal Size:	12.1 mm Black Opal
Black Opal Color:	Multicolor Black Opal
Black Opal Clarity:	Opaque Black Opal
Black Opal Origin:	Ethiopia Black Opal
Black Opal Treatment:	Smoked
Black Opal Quantity:	1
Black Opal Certificate:	GemSelect
Product Description:

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This Page in Other Languages

Black Opals are just one of the many varieties found in this intriguing and fantastic looking gemstone family which also includes white opals, boulder opals, fire opals, pink Peruvian opals, hyalite opals and many, many more.

Black Opals are one of the more well known varieties and, generally speaking, are the most valuable of them all.

Black Opal Colors

Black Opal is a slightly inaccurate name as a totally black opal would be pretty much worthless. The black refers to the material known as 'potch upon' which the precious and colorful Opal is formed.

With a contrasting deep dark background, the play-of-color phenomenon and its kaleidoscopic rainbow of colors can really stand out.

Unlike most gemstones it is the internal structure of the Black Opal that creates the color rather than the presence of certain minerals.

Precious opal material is comprised of millions of tiny spheres of different sizes and varying spaces between them. As light enters the stone, it bounces around and breaks up into the different colors - a bit like a prism - and reflects back out again.

Black Opal Species

Black Opals are just one of many types of opals found around the world. Some have the famous play-of-color while others appear in just a single color.

A of the more well-known ones include:

White Opals
Boulder Opals
Matrix Opals
Fire Opals
Hyalite Opals
Cat's Eye Opals

Black Opal Price

As with nearly all gemstones, it is the color of the Black opal that is the highest consideration when setting its price. However, there are a few more aspects to consider when it comes to opals:

Coverage - how much of the gemstone surface shows color
Contrast - a striking difference between the color and background will increase the value
The color itself - red and orange colors are rarer and more expensive than blue or purple tones
Patterns - certain recognized patterns of color such as Chinese Writing or Harlequin are much sought after
Origin - Black Opals can be found in various location but those from Australia are the most expensive

Black Opals are all unique one-of-a-kind gemstones so individual choice will always play its part it deciding which is the best color or pattern for you.

Carat Weight

Once all the color factors have been taken into account we can then think about the carat weight. The vast majority of Black Opals are less than 10 carats in weight and anything bigger than that with good color and contrast will be very precious indeed.

It is best to choose your Black Opal based on the physical size - the length, width and height - rather than carat size. Also look at the roundness of the cabochon cut in your gemstone. Nice big domes can show off the color a lot better than flat versions.

The finest quality stock from Australia with bold bright colors can be hundreds of dollars per carat while the Black Opals from other parts of the world can be between $15 and $40 per carat.

Treatments

The big selling point of Black Opals is the contrast between the bright colors and the dark background. It is almost impossible to convincingly alter or replicate the play-of-color in an opal but to darken the background is not so hard. Smoking or a combination of sugar and heat can produce a deep colored base for the colors to be displayed.

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

Where are Black Opals found?

Almost all Black Opals are mined in Lightning Ridge, a town in northern New South Wales in Australia while another source is Ethiopia in north east Africa.

What jewelry is Black Opal suitable for?

Black Opals have a rating of 5.5 to 6.5 on Mohs hardness scale. This makes them a little bit fragile for many types of jewelry items and not suitable for daily wear unless placed in protective settings.

Earrings, pendants, brooches are no problem and items such as cufflinks and tie pins make use of the deep masculine colors much admired in men's jewelry.

Birthstones and Anniversaries

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

A Black Opal is the traditional gemstone gift for the 14th wedding anniversary.

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