No Reserve - ALGT Certified - Highly Exclusive Natural Opal Pendant - A creation of geological precision and patience- 3.33 g





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Natural opal pendant, oval cabochon, set in handcrafted 18k gold-plated silver with a chain; origin Australia; weight 3.33 g; ALGT certificate; no indications of treatment.
Description from the seller
With an eye for detail, we present this highly exclusive oval-shaped opal pendant. Opal is admired worldwide for its vibrant play of colors that shifts with every movement. Our experienced silversmith has secured the stone in 18k gold-plated silver, with a small engraved logo as a refined mark of artisanal skill. The pendant comes with a high-quality 18k gold-plated chain, ready for use.
At Heart of Gemstone, we distinguish ourselves by offering only flawless gemstones. This piece has been meticulously inspected to ensure it is completely free of imperfections before being presented in the auctions.
What further sets us apart is the addition of an ALGT certificate, provided by an internationally renowned laboratory headquartered in Antwerp. ALGT is globally recognized for its advanced technology and highly accurate analyses. The included certificate not only enhances the value of the item but also provides you with the assurance that you are receiving an authentic and high-quality piece, independently tested and verified by experienced gemologists.
Product Description:
ALGT Certificate Information:
Report Number: 821605909
Species: Natural Opal
Shape: Oval, Cabochon
Measurements: 17.63 x 12.90 x 8.27 mm
Weight: 3.33 in grams (excluding chain)
Color: White + Play of Colors
Transparency: Translucent
Comments: No indications of treatment. Examined as mounting permits. Weight and measurements are approximate.
Item Condition: Excellent
Value indication:
• Natural Opal (white + play of colors) - Oval, Cabochon (~5,60 ct *80/ct = €447,95)
• Handcrafted silver setting, labour, silver chain and ALGT certification (€150,66)
Estimated total retail value: €598,61
About shipping:
You can always rely on careful and reliable shipping. Our packages are handed over twice a week on business days to ensure prompt handling of all orders.
Based on average delivery times, many European orders are typically delivered within approximately 7 to 10 days, although some destinations may require slightly more time depending on the destination, customs procedures or busy periods.
The current average international delivery time is approximately 9 days. Please note that these are average delivery times and not guaranteed delivery estimates.
Combined Shipping:
If you purchase multiple lots, we will combine them into one shipment whenever possible. If Catawiki has charged shipping costs more than once, please send us the relevant order numbers and shipping amounts so we can quickly refund the excess shipping costs.
About our lots:
We prioritize excellent customer service and reliability because your experience and satisfaction are of the utmost importance to us. Feel free to browse through our fantastic feedback from other buyers, which shows that we are highly rated. We strive to take high-quality photos with great care to provide a precise and honest representation of the item, so you can have a good understanding of your purchase.
Seller's Story
With an eye for detail, we present this highly exclusive oval-shaped opal pendant. Opal is admired worldwide for its vibrant play of colors that shifts with every movement. Our experienced silversmith has secured the stone in 18k gold-plated silver, with a small engraved logo as a refined mark of artisanal skill. The pendant comes with a high-quality 18k gold-plated chain, ready for use.
At Heart of Gemstone, we distinguish ourselves by offering only flawless gemstones. This piece has been meticulously inspected to ensure it is completely free of imperfections before being presented in the auctions.
What further sets us apart is the addition of an ALGT certificate, provided by an internationally renowned laboratory headquartered in Antwerp. ALGT is globally recognized for its advanced technology and highly accurate analyses. The included certificate not only enhances the value of the item but also provides you with the assurance that you are receiving an authentic and high-quality piece, independently tested and verified by experienced gemologists.
Product Description:
ALGT Certificate Information:
Report Number: 821605909
Species: Natural Opal
Shape: Oval, Cabochon
Measurements: 17.63 x 12.90 x 8.27 mm
Weight: 3.33 in grams (excluding chain)
Color: White + Play of Colors
Transparency: Translucent
Comments: No indications of treatment. Examined as mounting permits. Weight and measurements are approximate.
Item Condition: Excellent
Value indication:
• Natural Opal (white + play of colors) - Oval, Cabochon (~5,60 ct *80/ct = €447,95)
• Handcrafted silver setting, labour, silver chain and ALGT certification (€150,66)
Estimated total retail value: €598,61
About shipping:
You can always rely on careful and reliable shipping. Our packages are handed over twice a week on business days to ensure prompt handling of all orders.
Based on average delivery times, many European orders are typically delivered within approximately 7 to 10 days, although some destinations may require slightly more time depending on the destination, customs procedures or busy periods.
The current average international delivery time is approximately 9 days. Please note that these are average delivery times and not guaranteed delivery estimates.
Combined Shipping:
If you purchase multiple lots, we will combine them into one shipment whenever possible. If Catawiki has charged shipping costs more than once, please send us the relevant order numbers and shipping amounts so we can quickly refund the excess shipping costs.
About our lots:
We prioritize excellent customer service and reliability because your experience and satisfaction are of the utmost importance to us. Feel free to browse through our fantastic feedback from other buyers, which shows that we are highly rated. We strive to take high-quality photos with great care to provide a precise and honest representation of the item, so you can have a good understanding of your purchase.

