Cobalt Teal Lab Sapphire, Antique Long Cushion Cut, 6.435 Carats
SQO269
🩵🩵🩵 This incredible teal lab-created sapphire, masterfully cut in an elegant antique cushion shape, exudes timeless sophistication. The carefully crafted facets catch the light in the most enchanting way, creating a magical sparkle that dances with every movement. The gemstone’s deep teal hue is reminiscent of the ocean at twilight, with flashes of blue and green that shift under different lighting conditions, making it an endlessly fascinating gem to behold.
DIMENSIONS AND SHAPE
Size: 11.98mm x 9.12mm x 6.08mm
Weight: 6.435 carats
Cut: Antique Long Cushion
Shape: Long Cushion
Clarity: Loupe Clean
Inclusions: None
Treatment: None
PHYSICAL PROPERTIES
MOHS hardness: 9.0
Pleochroism:
Dispersion: 0.018
Density: 4.0
Refractive Index: 1.76
Chemical Formula: Al2O3
POSSIBLE JEWELRY APPLICATIONS
Collections
🌍 GENERAL MATERIAL DESCRIPTION
- Material Name:FF Teal Dark
- Country of Origin : Unknown
- Growth Method: Flame Fusion
In the sapphire crystal lattice, the chromophore cobalt demonstrates two distinct valence states: Co2+ (resulting in a blue coloration) and Co3+ (yielding a green hue), contingent upon factors such as temperature, atmospheric conditions, and growth parameters. The resultant coloration can span a spectrum from green to teal to blue, contingent upon the relative abundance of Co2+ and Co3+. These crystals consistently exhibit color variegations, primarily stemming from the intricate challenge of precisely controlling all growth conditions, thereby bestowing upon each gem a distinct and unique hue.
🏭 SPECIFIC Lot INFORMATION
This material exhibits a notably inconsistent texture akin to the majority of cobalt-doped flame-fusion sapphires. Its provenance remains uncertain. The boules are characterized by their substantial size, typically displaying a predominantly pale green-yellow hue. However, a limited selection of sections can be to reveal an exquisite light blue-green colored gemstone.
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Pairs well with
