A magnified image showing a cluster of rutile silk in an untreated burmese blue sapphire.
Burma blue sapphire inclusions.
A mong the highlights in the upcoming magnificent jewels and noble jewels sale in geneva on 15 november are several exquisite kashmir burmese and ceylon sapphires.
These exquisite gems originate from areas known to produce some of the finest sapphires in the world kashmir in northern india across its eastern border to myanmar previously burma and their island neighbour sri lanka.
Folded fluid feathers and fingerprints are the most common inclusions in unheated burma sapphires.
Completely untreated it displays a vivid royal blue with remarkable saturation.
Limited supply and strong demand also fluctuate burma neelam stone price upto a certain extent.
Photo courtesy of apsara co uk.
Fine specks are considered okay as a stone found without any inclusions is incredibly rare to find.
As a genuine gem some inclusions are expected to be found in burmese sapphire.
With a medium to medium dark tone these gems also display a slightly violet tint.
The color is truly exceptional with a saturation rarely.
Blue zones enriched along facet joints and girdle.
Liquid fingerprints guest crystals and two phase inclusions in an un treated burmese blue sapphire.
This feature is found in a beryllium treated blue sapphire due to high temperatures applied in this process.
Photo courtesy of apsara co uk.
Expect high saturation of color in burmese sapphire.
However that said the stones with higher class of clarity are definitely going to priced higher as opposed to ones with milky and specked appearance.
Inclusions in unheated sapphire from burma myanmar.
Burmese sapphire prices.
Cascades of swirled clouds included in a beryllium treated blue sapphire.
Color clarity cut and carat weight are the major factors influencing burmese sapphire value.
Colored stones are generally far more saturated with inclusions at a level of 10x magnification than diamonds.
Rounded guest crystals possibly calcite in an un treated burmese blue sapphire.
The richness and consistency of the color and the velvety texture is due in part to fine rutile silk inclusions that disperse light.
The 5 09 ct blue sapphire from mogok burma shown above is such a gem.
The burma sapphires are formed in the igneous rocks that undergo contact and regional metamorphosis.
Surface diffusion treated blue sapphire.
In india faceted burmese blue sapphire price per carat starts from 25 000 per carat 390 approx and goes up to 5 lakh per carat 7795 approx and even above.
Liquid fingerprint inclusion in an un treated burmese blue sapphire.
Short rutile also sometimes referred to as the burmese silk is the most common inclusion.
