66.44 Carat Royal Blue Unheated Tanzanite Diamond Gold Ring

GIA Certified 2.30ct. Natural No heat Sapphire ring. Report: 5151053377 Oval cut: 8.25 X 6.60 X 5.20mm Transparent, & Si-1 Clarity. Gorgeous vivid blue tone. .36ct. Side na...

Natural Unheated Blue Sapphire and Diamond Cocktail Engagement Ring Centering a big 9.94 carat Natural Ceylon Sapphire, "sparkling Violet blue", No evidence of thermal enhancement, ...

GRS Switzerland 3.70 Carat Oval Royal Blue Sapphire Ring Unheated Untreated

An exquisite unheated large blue sapphire from Srilanka with a phenomenal color a royal blue vivid hue. The sapphire has not been treated in any way is a pristine emerald cut sapphire that has eye clean with vs clarity. A stone of this size with this characteristics is quite rare. The ring is set in solid platinum handmade in Italy with vvs1 e...

Made of 18k yellow gold, this ring is set with a sparkling old mine cut diamond that weighs 0.66ct. graded J color with SI1 clarity. The ring is currently size 4 3/4, and can be res...

This important ring dating from the mid to late 20th century centers a antique cushion-cut sapphire weighing 7 carats, set in platinum and flanked by straight tapezoid diamond . It is accompanied by a report from SSEF Switzerland Laboratories stating that the sapphire is natural, of Ceylon Sri Lanka origin, with no evidence of heat treatment Medium to Strong blue color is considered the optimal designation of hue, tone and saturation exhibited by sapphires from this region. Of a graceful shape, ideal in size for the hand, this gorgeous specimen gem...