ALGT Certified - Large and Masterful Natural Quartz - Fully loupe clean and free of impurities- 169.27 g






Holds BSc in geology and post-graduate qualifications in geochemistry.
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A large, oval polished natural quartz piece from Brazil, loupe-clean and colorless, weighing 169.27 g, accompanied by an ALGT certificate (Report No. 820643500).
Description from the seller
Presenting a large, masterfully crafted oval-shaped quartz stone, renowned globally for its crystal-clear appearance and extraordinary light transmission. Its large size makes this masterpiece instantly noticeable. The purity of the stone is remarkably clear. This piece combines artisanal craftsmanship with natural aesthetics, resting upon a solid wood base.
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. Moreover, it is entirely loupe clean - a rare feature that underscores its exceptional clarity and quality.
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: 820643500
Species: Natural Quartz
Variety: Rock Crystal
Shape: Oval, Polished
Measurements: 77.58 x 53.69 x 29.25 mm
Weight: 169.27 in grams (excluding wooden stand)
Color: Colorless
Transparency: Transparent
Comments: No indications of treatment.
Item Condition: Excellent
Value indication:
• Rock Crystal (colorless) - Oval, Polished - loupe clean (~846,35 ct *1,50/ct = €1.269,53)
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
Presenting a large, masterfully crafted oval-shaped quartz stone, renowned globally for its crystal-clear appearance and extraordinary light transmission. Its large size makes this masterpiece instantly noticeable. The purity of the stone is remarkably clear. This piece combines artisanal craftsmanship with natural aesthetics, resting upon a solid wood base.
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. Moreover, it is entirely loupe clean - a rare feature that underscores its exceptional clarity and quality.
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: 820643500
Species: Natural Quartz
Variety: Rock Crystal
Shape: Oval, Polished
Measurements: 77.58 x 53.69 x 29.25 mm
Weight: 169.27 in grams (excluding wooden stand)
Color: Colorless
Transparency: Transparent
Comments: No indications of treatment.
Item Condition: Excellent
Value indication:
• Rock Crystal (colorless) - Oval, Polished - loupe clean (~846,35 ct *1,50/ct = €1.269,53)
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.
