Opal Cabochon - Height: 7.72 mm - Width: 24.2 mm- 3.22 g
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Starting bid
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Expert
Selected by Georgia Foteinou
Holds BSc in geology and post-graduate qualifications in geochemistry.
Estimate € 220 - € 250
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Description from the seller
Unique 16.71 ct Natural Crystal Opal – ALGT Certified – Light Yellow with Play of Colors
Description:
A stunning natural crystal opal weighing 16.71 carats, in an elegant pear-shaped cabochon cut. This opal is completely natural, untreated, and displays an impressive play of colors (opalescence) in red, green, orange, and blue. The stone has a beautiful light yellow base and is transparent, which results in an intense sparkle with every light incidence.
Certified by ALGT – Antwerp Laboratory for Gemstone Testing
Report number: 77072007
Date: May 7, 2025
The original certificate is included. QR verification available.
Specifications
Type: Natural opal
• Variety: Kristalopaal
Weight: 16.71 ct
Dimensions: 24.20 x 21.13 x 7.72 mm
Color: light yellow with 'play-of-color' (a play of colors).
• Transparency: Transparent
• Shape: Pear shape, cabochon
• Treatment: None (100% natural)
Why bid?
This opal is a true eye-catcher for collectors, jewelers, or enthusiasts of unique natural gemstones. Thanks to its large size, bright color flashes, and official certificate, this stone is both a safe investment and an aesthetic showpiece.
Shipping
Carefully packaged and shipped insured with a tracking number. Includes ALGT certificate and luxury storage box.
Unique 16.71 ct Natural Crystal Opal – ALGT Certified – Light Yellow with Play of Colors
Description:
A stunning natural crystal opal weighing 16.71 carats, in an elegant pear-shaped cabochon cut. This opal is completely natural, untreated, and displays an impressive play of colors (opalescence) in red, green, orange, and blue. The stone has a beautiful light yellow base and is transparent, which results in an intense sparkle with every light incidence.
Certified by ALGT – Antwerp Laboratory for Gemstone Testing
Report number: 77072007
Date: May 7, 2025
The original certificate is included. QR verification available.
Specifications
Type: Natural opal
• Variety: Kristalopaal
Weight: 16.71 ct
Dimensions: 24.20 x 21.13 x 7.72 mm
Color: light yellow with 'play-of-color' (a play of colors).
• Transparency: Transparent
• Shape: Pear shape, cabochon
• Treatment: None (100% natural)
Why bid?
This opal is a true eye-catcher for collectors, jewelers, or enthusiasts of unique natural gemstones. Thanks to its large size, bright color flashes, and official certificate, this stone is both a safe investment and an aesthetic showpiece.
Shipping
Carefully packaged and shipped insured with a tracking number. Includes ALGT certificate and luxury storage box.
Details
Main Mineral
Opal
Mineral Form
Cabochon
Supplement
Unique 16.71 ct Natural Crystal Opal – ALGT Certified – Light yellow with Play of Color
Weight
3.22 g
Country of Origin
Not specified
Height
7.72 mm
Width
24.2 mm
Depth
21.13 mm
Disclaimer
It is believed that certain gemstones and minerals have beneficial health and spiritual properties. However, using or wearing gemstones or minerals does not mean that you can treat, cure or prevent any disease. Please consult your health care professional for information on health care issues and do not stop any medications or courses of treatment, without first consulting your health care professional. The use of gemstones or minerals as a wellness therapy is one of personal choice. While stones or crystals have been used historically to relieve or prevent symptoms, the objects sold on our website offer no guarantee of results. Therefore, Catawiki cannot guarantee or be held liable for the effectiveness of these objects sold herein.
It is believed that certain gemstones and minerals have beneficial health and spiritual properties. However, using or wearing gemstones or minerals does not mean that you can treat, cure or prevent any disease. Please consult your health care professional for information on health care issues and do not stop any medications or courses of treatment, without first consulting your health care professional. The use of gemstones or minerals as a wellness therapy is one of personal choice. While stones or crystals have been used historically to relieve or prevent symptoms, the objects sold on our website offer no guarantee of results. Therefore, Catawiki cannot guarantee or be held liable for the effectiveness of these objects sold herein.
