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Friday, April 17, 2015

Ruby Diamond Engagement Ring 1994

Ruby Diamond Engagement Ring





Ruby Diamond Engagement Ring.
By Farzana Aamir.
Ruby is α-alumina (the most stable form of Al2O3) in which a small fraction of the aluminium3+ ions are replaced by chromium3+ ions. Each Cr3+ is surrounded octahedrally by six O2− ions. This crystallographic arrangement strongly affects each Cr3+, resulting in light absorption in the yellow-green region of the spectrum and thus in the red color of the gem. When yellow-green light is absorbed by Cr3+, it is re-emitted as red luminescence

Wednesday, April 15, 2015

Ruby Diamond Engagement Ring.1993

Ruby Diamond Engagement Ring.




Ruby Diamond Engagement Ring.
By Farzana Aamir.
Rubies have a hardness of 9.0 on the Mohs scale of mineral hardness. Among the natural gems only moissanite and diamond are harder, with diamond having a Mohs hardness of 10.0 and moissonite falling somewhere in between corundum (ruby) and diamond in hardness. 

Friday, April 10, 2015

Ruby Engagement And Wedding Ring 1994

    Ruby Engagement And Wedding Ring.





Ruby Engagement And Wedding Ring.



By Farzana Aamir



A ruby is a pink to blood-red colored gem stone, a variety of the mineral corundum (aluminium oxide). The red color is caused mainly by the presence of the element chromium. Its name comes from ruber, Latin for red. Other varieties of gem-quality corundum are called sapphires. Ruby is considered one of the four precious stones, together with sapphire, emerald and diamond

Wednesday, April 8, 2015

Ruby Engagement Ring 1993

Ruby Engagement Ring 







Ruby Engagement Ring of  World in  girl engagement-ring beautiful ruby diamond-engagement-rings-proposal-stories-



By Farzana Aamir .


The basic forms of jewellery vary between cultures but are often extremely long-lived; in European cultures the most common forms of jewellery listed above have persisted since ancient times, while other forms such as adornments for the nose or ankle, important in other cultures, are much less common. Historically, the most widespread influence on jewellery in terms of design and style have come from Asia