Opal Rough- 2.3 g - (1)
05
days
12
hours
53
minutes
49
seconds
3 other people are watching this object
 Bidder 5423 | €1 |
|---|
Catawiki Buyer Protection
Your payment’s safe with us until you receive your object.View details
Trustpilot 4.4 | 124911 reviews
Rated Excellent on Trustpilot.
Natural raw Welo Opal from the Welo region of Ethiopia, 11.50 ct (about 2.30 g), dimensions approximately 18 × 15 × 11 mm, unheated and untreated, semitransparent to transparent with vivid play of color.
AI-assisted summary
Description from the seller
11.50 ct 18.00 x 15.00 x 11.00 mm Finest Rainbow Welo Rough Opal (Natural Opal)
1.80 cm larger opal!
2.30 grams - with fiery red, blue, and green sparkle - please view this opal under a strongly lit loupe; it is full of fiery red and sparkling green and intensely metallic blue light reflections - please note: the play of color is strong only under bright lighting or direct sunlight!
This impressive natural rough opal from the world-famous Welo opal mines in Ethiopia is up for auction. The piece impresses with its immense size of 1.80 cm and 11.50 carats, as well as with a vibrant, multicolored play of color, typical of high-quality Welo opals.
The opal displays an intense play-of-color with bright green, yellow, orange, and red flashes that sweep through the material in a banded and expansive way. Especially under direct sunlight or bright LED light, the stone reveals its full visual presence and unveils a dynamic, constantly changing color play.
In diffused light the fire remains visible, but naturally appears much calmer and softer—a typical and appreciated behavior of untreated Welo opals.
The semitransparent to transparent base matrix gives the opal depth and ensures that the play of color does not merely appear superficial, but seems to glow from within the stone. The natural, rough form makes this specimen particularly interesting for both collectors and lapidaries, as several cutting orientations are conceivable.
Welo-Opals are known for their hydrophobic properties and, due to their range of colors, purity, and relatively young discovery history, are among the most sought-after opals on the international gemstone market.
Gemmological data
Gem: Natural Opal (Welo Opal)
Origin: Ethiopia, Welo region
Weight: 11.50 ct (approx. 2.30 g)
Dimensions: approx. 18 × 15 × 11 mm
Treatment: None – 100% natural / untreated
Transparency: semi-transparent to transparent
Classification
This piece is particularly suitable as
a high-quality collectible (Specimen) or as an excellent cutter’s piece for further processing into a unique gemstone with strong color play.
The hydrophane, water-containing opal shows an intense, three-dimensional spectrum of red, green, blue and gold — rarely seen in this saturation and size.
Natural silica gel structures in the stone refract the light in the finest microarchitecture – a mineralogical miracle.
With 11.50 ct, this is an impressive investment and collector's stone.
Untreated or set in platinum: a symbol of style, rarity and substance.
Invest in geological excellence with lasting value.
The stone comes from the Semien Wollo mountain region and is therefore called Welo Opal.
Specific location: Wegel Tena (The stone has been checked for authenticity by us)
Seller's Story
High luxury class interior art objects — investment minerals and gemstones — Jurassic fossils — magical objects.
Translated by Google Translate11.50 ct 18.00 x 15.00 x 11.00 mm Finest Rainbow Welo Rough Opal (Natural Opal)
1.80 cm larger opal!
2.30 grams - with fiery red, blue, and green sparkle - please view this opal under a strongly lit loupe; it is full of fiery red and sparkling green and intensely metallic blue light reflections - please note: the play of color is strong only under bright lighting or direct sunlight!
This impressive natural rough opal from the world-famous Welo opal mines in Ethiopia is up for auction. The piece impresses with its immense size of 1.80 cm and 11.50 carats, as well as with a vibrant, multicolored play of color, typical of high-quality Welo opals.
The opal displays an intense play-of-color with bright green, yellow, orange, and red flashes that sweep through the material in a banded and expansive way. Especially under direct sunlight or bright LED light, the stone reveals its full visual presence and unveils a dynamic, constantly changing color play.
In diffused light the fire remains visible, but naturally appears much calmer and softer—a typical and appreciated behavior of untreated Welo opals.
The semitransparent to transparent base matrix gives the opal depth and ensures that the play of color does not merely appear superficial, but seems to glow from within the stone. The natural, rough form makes this specimen particularly interesting for both collectors and lapidaries, as several cutting orientations are conceivable.
Welo-Opals are known for their hydrophobic properties and, due to their range of colors, purity, and relatively young discovery history, are among the most sought-after opals on the international gemstone market.
Gemmological data
Gem: Natural Opal (Welo Opal)
Origin: Ethiopia, Welo region
Weight: 11.50 ct (approx. 2.30 g)
Dimensions: approx. 18 × 15 × 11 mm
Treatment: None – 100% natural / untreated
Transparency: semi-transparent to transparent
Classification
This piece is particularly suitable as
a high-quality collectible (Specimen) or as an excellent cutter’s piece for further processing into a unique gemstone with strong color play.
The hydrophane, water-containing opal shows an intense, three-dimensional spectrum of red, green, blue and gold — rarely seen in this saturation and size.
Natural silica gel structures in the stone refract the light in the finest microarchitecture – a mineralogical miracle.
With 11.50 ct, this is an impressive investment and collector's stone.
Untreated or set in platinum: a symbol of style, rarity and substance.
Invest in geological excellence with lasting value.
The stone comes from the Semien Wollo mountain region and is therefore called Welo Opal.
Specific location: Wegel Tena (The stone has been checked for authenticity by us)
Seller's Story
High luxury class interior art objects — investment minerals and gemstones — Jurassic fossils — magical objects.
Translated by Google TranslateDetails
Number of items
1
Main Mineral
Opal
Mineral Form
Rough
Supplement
11.50 ct - 1.80 cm x 1.50 cm Welo raw opal
Weight
2.3 g
Origin (Region/ City)
Welo Ethiopia
Country of Origin
Ethiopia
Disclaimer
Catawiki always aims to offer you the best possible buying experience. Our experts virtually review and select every object in line with our submission guidelines. While we strive to provide a detailed description and photographs of each jewellery object, discrepancies or inaccuracies may occur. It is your responsibility to review all of the information provided about an object, including the condition and description, before placing an order. Sellers are responsible for the information, pictures and description provided, including the quality, quantity and nature of the jewelry supplied. A small imperfection that cannot be seen in the photo but is included in the description is not a non-conformity. A Lab Report is not a guarantee, valuation or appraisal regarding the articles described therein. A Lab Report contains only the characteristics of an article described after it has been graded, tested, examined, and analyzed using the techniques and equipment used at the time of the examination from that specific Lab. The results of any other examination performed on the article may differ depending when, how, by whom and with which grading standard the article is examined. In addition, any changes and improvements in techniques and equipment that may have occurred which may enable the examiner to detect, among other things, the use of processes for altering the characteristics of an article which use was previously undetectable, does not automatically mean the object does not conform to its description.
Catawiki always aims to offer you the best possible buying experience. Our experts virtually review and select every object in line with our submission guidelines. While we strive to provide a detailed description and photographs of each jewellery object, discrepancies or inaccuracies may occur. It is your responsibility to review all of the information provided about an object, including the condition and description, before placing an order. Sellers are responsible for the information, pictures and description provided, including the quality, quantity and nature of the jewelry supplied. A small imperfection that cannot be seen in the photo but is included in the description is not a non-conformity. A Lab Report is not a guarantee, valuation or appraisal regarding the articles described therein. A Lab Report contains only the characteristics of an article described after it has been graded, tested, examined, and analyzed using the techniques and equipment used at the time of the examination from that specific Lab. The results of any other examination performed on the article may differ depending when, how, by whom and with which grading standard the article is examined. In addition, any changes and improvements in techniques and equipment that may have occurred which may enable the examiner to detect, among other things, the use of processes for altering the characteristics of an article which use was previously undetectable, does not automatically mean the object does not conform to its description.
