Gemstone: natural opal
Weight: 4,71 ct
Measurements: 12,1 x 12,1 x 6,0 mm
Color: yellowish
Clarity: semi-transparent
Cut: round cabochon cut
Enhancements: none
Origin: Ethiopia
Comments: hydrophane opal with strong play of colors
Gemological report by Egor Gavrilenko included, see sample report here.
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Ethiopian opals have gained significant recognition in the gemstone market due to their striking play-of-color, affordability, and unique properties. Discovered in the 1990s in the Shewa province and later in Wollo and Wegel Tena, these opals quickly became a popular alternative to Australian opals. The deposits in Ethiopia produce opals with a wide range of colors, from vibrant reds, oranges, and greens to intense blues and purples, making them some of the most visually captivating opals in the world.
One of the most distinctive characteristics of Ethiopian opals is their hydrophane nature. Hydrophane opals have a porous structure that allows them to absorb water, temporarily altering their transparency and color. This property makes them unique but also requires special care. When exposed to water, the opal can become more translucent, and its play-of-color may temporarily fade. However, once dried, it typically regains its original brilliance. Because of this, jewelers and collectors must be cautious when handling Ethiopian opals, avoiding prolonged exposure to moisture and harsh chemicals.
Despite their beauty, Ethiopian opals require careful maintenance in jewelry. Unlike traditional non-hydrophane opals, which are more stable, Ethiopian opals can be sensitive to sudden changes in humidity and temperature. It is advised to store them in a stable environment, away from direct sunlight and extreme conditions. Setting these opals in protective jewelry designs, such as bezel settings, can help reduce exposure to elements that could affect their stability. Regular cleaning should be done using a soft, dry cloth without the use of ultrasonic cleaners or harsh chemicals, which can damage the stone’s delicate surface.
Due to their availability and affordability, Ethiopian opals have become widely used in modern jewelry. Designers appreciate their vibrant colors and unique optical effects, incorporating them into rings, earrings, pendants, and bracelets. Their captivating hues and striking patterns make them a favorite among artisans and jewelry enthusiasts. However, their hydrophane nature means that jewelers must consider special precautions when setting them in pieces that will be worn daily.
Historically, opals have been revered for their mystical properties, and Ethiopian opals are no exception. Ancient civilizations associated opals with good fortune and creativity, believing that they carried the essence of fire and lightning. While Ethiopian opals are relatively new to the gemstone market compared to Australian and other sources, they have quickly carved out a significant place in the industry, admired for their unparalleled brilliance and affordability.
