Nero Gems
Lot of 36 marquise cut yellow sapphires 4.12 ct total
Lot of 36 marquise cut yellow sapphires 4.12 ct total
Sapphire with a yellow color, probably obtained by beryllium diffusion treatment. Good transparency when observed with a 10x lens
Pure corundum, or aluminum oxide, is a completely colorless mineral. The presence of elements foreign to its chemistry give it its color; hence the name of the variety (sapphire for blue and ruby for red). The lot presented is of sapphires, whose yellow color was induced by diffusion processes of beryllium in the structure of the gems. The marquise cut is very particular. These gems can be purchased individually, but it is recommended to take the entire lot to make a pavé. The gems can also be purchased individually, anyone interested can write to us for a quote
Source: Natural
Cut: Marquise
Weight in Ct: 0.11
Length in mm: 4.0
Width in mm: 2.0
Height in mm: 1.0
Treatments: Thermodiffusion
Purity: SI2|Type II
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