Burmese Blue Sapphire Inclusions

Surface diffusion treated blue sapphire.

Burmese blue sapphire inclusions.

As a genuine gem some inclusions are expected to be found in burmese sapphire. Expect high saturation of color in burmese sapphire. Inclusions in unheated sapphire from burma myanmar. With a medium to medium dark tone these gems also display a slightly violet tint.

Burmese sapphire is treasured for its royal blue hue. Cascades of swirled clouds included in a beryllium treated blue sapphire. Mining of burma sapphire gemstone. Colored stones are generally far more saturated with inclusions at a level of 10x magnification than diamonds.

Short rutile also sometimes referred to as the burmese silk is the most common inclusion. Completely untreated it displays a vivid royal blue with remarkable saturation. Liquid fingerprints guest crystals and two phase inclusions in an un treated burmese blue sapphire. The color is truly exceptional with a saturation rarely.

Blue zones enriched along facet joints and girdle. A magnified image showing a cluster of rutile silk in an untreated 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. Photo courtesy of apsara co uk.

Photo courtesy of apsara co uk. In general burmese thai and australian blue sapphires contain crystals of plagioclase feldspars orthoclase niobite columbite calcite monazite zircon apatite fergusonite and thorite. Color clarity cut and carat weight are the major factors influencing burmese sapphire value. The burma sapphires are formed in the igneous rocks that undergo contact and regional metamorphosis.

Limited supply and strong demand also fluctuate burma neelam stone price upto a certain extent. The top spectrum o ray is offset of 0 1 absorbance unit for clarity. Burmese sapphire prices. Liquid fingerprint inclusion 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. What can inclusions reveal about ruby and sapphire origins. The polarized uv vis nir spectra from 250 to 1000 nm of a classic burmese blue sapphire are different from those of baw mar 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.

The spectra are normalized to a millimeter thickness. Rounded guest crystals possibly calcite in an un treated burmese blue sapphire. The 5 09 ct blue sapphire from mogok burma shown above is such a gem.