Gemstones, Diamonds, Pearls - Multicolour.com
Search

Advance Options | Color Search | Step-by-Step Wizard
My Shopping Cart Not sign in! Gem Library
_
_

Precious Color Play Opal.

Featured Opal limited-time offers. Only 306 gems left.

Natural Opal Single Pear 4.380 CTS
Opal Single Pear Translucent

Pear, 16.80 MM X 12.80 MM, 4.380 CTS, Translucent,

NOW ONLY USD 126.14
Usually ships within 24 hours

View item details  Add to shopping cart
Natural Opal Single Oval 3.820 CTS
Opal Single Oval Translucent

Oval, 13.10 MM X 8.90 MM, 3.820 CTS, Translucent,

NOW ONLY USD 93.87
Usually ships within 24 hours

View item details  Add to shopping cart
Natural Opal Single Trillion 7.390 CTS
Opal Single Trillion Translucent

Trillion, 13.00 MM X 13.50 MM, 7.390 CTS, Translucent,

NOW ONLY USD 322.96
Usually ships within 24 hours

View item details  Add to shopping cart
Natural Opal Single Pear 7.440 CTS
Opal Single Pear Translucent

Pear, 18.00 MM X 13.70 MM, 7.440 CTS, Translucent,

NOW ONLY USD 297.60
Usually ships within 24 hours

View item details  Add to shopping cart
Natural Opal Single Oval 4.880 CTS
Opal Single Oval Translucent

Oval, 17.70 MM X 11.90 MM, 4.880 CTS, Translucent,

NOW ONLY USD 149.90
Usually ships within 24 hours

View item details  Add to shopping cart
Natural Opal Single Pear 7.800 CTS
Opal Single Pear Translucent

Pear, 17.20 MM X 11.30 MM, 7.800 CTS, Translucent,

NOW ONLY USD 194.39
Usually ships within 24 hours

View item details  Add to shopping cart

See more Opal offers.



What is Opal?

Opal is the most colorful of all gemstone. Precious opal reflects light with a play of brilliant colours across the visible spectrum, red being the most valued. Its splendid play of color is unsurpassed, and fine examples can be more valuable than diamond.

The play of colours in precious opal arises from the diffraction of light from submicroscopic layers of regularly oriented silica spheres. Opal usually contains 4 to 9 percent water, but lower and much higher values have been observed. When heated, opal may lose as much as 20 percent of its weight of water, fracture, and then crystallize to one of the silica minerals.

Depending on the origin of the opal, the durability and stability of the gemstone is variable. Mexican, Brazilian, and Australian opals appear to be quite stable. Chocolate colored Ethiopean opals from the Mezezo deposit are quite attractive but crack easily as a result of even the slightest temperature variations.

The most important and exciting new discovery of opal is in Ethiopia near Wegel Tena, 200km north of Mezezo and 550km north of Addis Abba. Unlike opals from Mezezo, these gems are remarkably tough and resistant to crazing. The body color is typically brownish orange to white, transparent to white, and with or without play of color. Perhaps the most unusual feature of the material is its hydrophane (water absorbing) character. When soaked in water, many of the stones become transparent.

Looking for one of a kind custom opal jewelry piece?

Custom opal jewelry at David Wein

Please find your Opal and visit our online jewelry workshop. Our approach to custom jewelry highlights the qualities of each individual gemstone to create a personalized design that enhances and respects the integrity of the stone.

Ask a Certified Gemologist

1-646-448-0359 in USA or drop us an email and we will get back to you within 6 hours.

Opal
4.380 CTS
Opal
3.820 CTS
Opal
7.390 CTS
Opal
7.440 CTS
Opal
4.880 CTS
Opal
7.800 CTS
Opal
4.880 CTS
Opal
7.300 CTS
Opal
6.860 CTS
Opal
5.820 CTS

_
_

All trademarks and logos shown herein are the property of their respective owners. © Copyright Multicolour Gems Ltd, 1998-2001. All rights reserved. Use of this site constitutes acceptance of Multicolour Return Policy, Privacy Policy and Trading Guarantee. Multicolour.com headquarters at # 59 Soi Pradit, Silom Soi 20, Bangkok, 10500, Kingdom of Thailand, Tel: +66 2 233-2108, Fax: +66 2 236-5274, E-mail to info@multicolour.com. Lost? Check Site Map.

Site design and maintenance by NetComposite ®.