0.79ct Oval Faceted Sapphire 5.5x4.9mm watchmakers bench Durston 1318

Name: 0.79ct Oval Faceted Sapphire 5.5x4.9mm watchmakers bench Durston 1318
Brand: lackiermobil.de
SKU: 9657133210
Price: 267.48 USD
Availability: InStock
Rating: 4.3429 (21 reviews)

SKU: 9657133210

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Description

Durston 1318

Weight 700g

Identifies

Bergeon 5285-248 to 272

0.79ct Oval Faceted Sapphire 5.5x4.9mm watchmakers bench Durston 1318Sapphire is a variety of the mineral corundum, an aluminium oxide. It is typically blue but fancy coloured sapphires also occur. The variety in colours is due to trace amounts of elements such as iron, titanium, chromium, copper and magnesium. Mohs Scale of Hardness: 9 (out of 10). Sources: Mines that have yielded the finest sapphires in colour and clarity are located in Kashmir, Myanmar and Sri Lanka. Nowadays the main sources of sapphires are:

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