Gemstone guide
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What is Ethiopian Opal?
Ethiopian Opal is a variety of opal, coloured by structural coloration. A guide to the gem, and to buying one well.
About Ethiopian Opal
01- Species
- Opal
- Variety
- Ethiopian Opal
- Hardness (Mohs)
- 5.5-6.5
- Refractive index
- 1.37-1.47
- Colour caused by
- Structural coloration
Ethiopian Opal is a captivating gemstone known for its mesmerising play-of-colour and unique patterns. Each stone is a one-of-a-kind masterpiece, offering an enchanting display that varies with every glance. The allure of Ethiopian Opal lies in its vibrant hues, ranging from subtle whites to vivid mixed colours, all enhanced by the stone's natural clarity. These opals are predominantly sourced from the rich deposits of Ethiopia and occasionally from other African regions such as Mozambique.
Our Ethiopian Opals are presented in their natural state, unheated to preserve their intrinsic beauty and character. The stones are expertly cut into cabochons, a shape that emphasises their lustrous play-of-colour. With prices starting from around $18 per carat, these opals offer both rarity and elegance. Many stones are accompanied by a laboratory certificate, and certification is available upon request, ensuring the authenticity and quality of each gem.
Judging quality
02What drives the value
- Intensity of play of colour
- Clarity
- Size
What to watch for when buying
- Overlooking surface flaws
- Misjudging play of colour quality
- Assuming all opals are treated
Inclusions you may see
- Play of colour
- Surface pitting
- Crazing
Origin, treatment and trade names
03Where it comes from
TreatmentAs disclosed for the stones we sell; every listing states its own.
Trade names
Price per carat
04- Typical price
- $69 per carat
- Most stones
- $54–$87 per carat
- Based on
- 21 stones in our stock, updated weekly. Ethiopian Opal prices by carat size →
From our stock
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From the journal
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Frequently Asked Questions
07Where do Ethiopian Opals originate?
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Ethiopian Opals primarily originate from Ethiopia, with some stones also sourced from Mozambique and other regions in Africa.
Are Ethiopian Opals treated?
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Our Ethiopian Opals are unheated, preserving their natural beauty and unique play-of-colour.
What drives the value of Ethiopian Opals?
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The value of Ethiopian Opals is driven by their vibrant play-of-colour, clarity, and the uniqueness of each stone. The cabochon cut further enhances their visual appeal.
How should I choose an Ethiopian Opal?
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When choosing an Ethiopian Opal, consider the intensity and range of its play-of-colour, clarity, and overall aesthetic appeal. Each stone's individuality makes it a personal choice.
Are Ethiopian Opals certified?
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Many Ethiopian Opals come with a laboratory certificate, and certification is available upon request for any stone, ensuring its authenticity and quality.
Shop
Ethiopian Opal
Every stone shows its own price, weight, origin and treatment. Browse our ethiopian opal, or contact our team for personal help choosing one.