Jewelry opal noble, precious opal

Opal noble

The opals noble or precious opal are rare gemstones that are characterized by the presence of a set of lights of color due to the diffraction of the light in a network with regular structure consisting of micro-silica spheres.
The opal noble is found in sedimentary deposits as in Australia or the volcanic, as in Mexico, in Oregon or in Ethiopia.



Aurora Australis, the most valuable of opals noble black Australia in the world.

Theopal noble black is the more rare and the most sought after of opals noble for its bursts of color exceptional, it is characterized by a body or a base of dark colour, black, grey or brown, due to the presence of carbon andoxide of iron. Its provenance is almost exclusive to Lightning Ridge in Australia.
"Aurora Australis" was found in 1938 at Lightning Ridge in Australia, it is considered as the'opal - black the most valuable in the world. The stone oval, cut and polished to the pattern "harlequin" to the dominant colors, red, green and blue on a black background, weighs 180 carats and measures 7.5 centimeters by 4.5 centimeters to inches. The rarity of the opal comes from its size and its color set vivid and powerful, recalling the night skies of south Australia and its northern lights.


1/Detail of veins opalisées on matrix, Virgin Valley, Nevada, USA. 2/Retail wood fossil opalisé in multiple lights color Virgin Valley, Nevada, USA. 3/Retail lights of single colors of black opal from Lightning Ridge, Australia. 4/Detail of the lights of blue color to purple features opal "blue Lightning Ridge, Australia.

Theopal black Nevada or opal from Virgin Valley, where it is extracted, is of volcanic origin, it is very rare and very sought-after for his flashes drug color red, blue, purple and green on a background of black matrix.
Theopal black from Ethiopia or opal chocolate because of the color inside its nodule is extracted in the region of Mezezo, it is found as nodules in volcanic round in the volcanic ash. It is rare and recherchée for its multi-coloured lights very bright large.
Theopal noble white or milky is characterized by a play of coloured lights on the bottom of the matrix, translucent white, sometimes milk-white, the absence of a basic dark makes the colors less intense than for a black opal
The fires of theopal white australian Coober Pedy are the most pronounced and abundant for this type of opal.
The majority of theopal noble of the highlands of Welo in Ethiopia is white or crystal and hydrophane, when the opal is wet or soaked in water, the body of the opal may change from white to crystal completely translucent. It is in the form of nodules volcanic in a tuff layer between layers of rhyolite, opal of low density are hydrophanes, the deposit is located approximately 250 km north-east of the city of Addis Ababa.
Theopal white andopal crystal is exploited to the north-west of Brazil in the state of Piaua, at the foot of sandstone cliffs, it is formed in alluvial deposits. Theexploitation is artisanal and production of gem opal is very low.
The Hungary is the main source of supply of opal noble from theAncient times and until the discovery of opals in Australia at the end of the Nineteenth century. The open-pit mine , located near Cervenica in a mountainous region located currently in Slovakia produce theopal milky white opaque with a play of colours of small size in points. The production is stopped because the quality is far below that of the australian opals.
Theopal noble crystal is fully transparente or translucent. Sometimes it is dark and tinged with bluish to purplish, and named black opal crystal, opal noble blue
Lightning Ridge in Australia is the most sought after for its matrix translucent blue , dotted with large lights shining.

Complementary Articles :
The Opal brings bad luck, story of opal in Australia.



1/Detail of an opal noble crystal blue of Cervenica, region Presov, Croatia. 2/Detail of an opal noble white of the best quality found to Cervenica, region Presov, Croatia. 3/Detail of a crystal opal orange of Wello in Ethiopia, called opal caramel because of its color, the name "fire opal" is reserved for opals of America. 4/Detail of a crystal opal blue of Wello, south Wegeltena, Amhara region in Ethiopia.

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Pendant Opal noble white...

$369.00
Opal noble, iridescent and multicolored on the basis milky white to light beige. Its clarity is translucent, the presence of cleavages common and...

Pendant Opal noble white...

$805.09
Opal noble, iridescent and multicolored on the basis milky white to light beige. Its clarity is translucent, no treatment gemstone 100 % natural,...

Pendant Opal noble 925...

$507.81
Opal noble, iridescent and multicolored on the basis translucent. Its clarity is excellent, clean, loupe, no treatment gemstone 100 % natural,...

Pendant Opal noble white...

$658.18
Opal noble, iridescent and multicolored on the basis milky white to light beige. Its clarity is translucent, no treatment gemstone 100 % natural,...

Pendant Opal noble black...

$1,005.20

Opal noble, iridescent and fire color based single opaque brown orange. Its clarity is opaque, no treatment gemstone 100 % natural, harvested in...

OpaleNobleEthiopieRare16x12mm1.34g3.8g612e01
  • On sale!

Pendant Opal noble 925...

$622.67 $889.53 -30%
Opal noble, iridescent and multicolored on the basis of translucent, orange to yellow. Its clarity is opaque, no treatment gemstone 100 % natural,...
Pendant Opal noble matrix cantera bezel setting, color-iridescent (58 gr) seen from the front
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Pendant in Opal noble...

$88.26 $126.08 -30%
Pendant Opal noble matrix cantera and solid silver (925/1000), set ended. Its main color is iridescent, yellow (opaque and translucent natural)....
Pendant Opal color iridescent, diamond-set claws. (1,3 gr) seen from the front
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Pendant created in Opal...

$73.11 $91.38 -20%

Fire opal color multi-colored on the base, orange to yellow. Its clarity is translucent, no treatment gemstone 100 % natural, harvested in...

Pendant fire Opal 925...

$311.16
Fire opal, . No treatment gemstone 100 % natural, harvested in Africa in respect of the extraction, and then cut and polished by hand with...

Pendant fire Opal solid...

$1,144.01
Fire opal, iridescent and multicolored on the basis of translucent, orange to yellow. Its clarity is excellent, clean, loupe, no treatment gemstone...