Burmese ruby and diamond three stone ring, early 20th century.

This ring is in excellent condition.

The beautiful vibrancy of a Burmese ruby can be traced back to their geology. Typically formed in a crystalline limestone (marble) matrix, this metamorphic rock is low in iron, resulting in a more intensely red ruby.
Burmese rubies have long been admired for their pure and highly saturated colour. This ranges from a light pinkish-red through to a deeper blood red hue, and are particularly seen with more purple tones than rubies from other sources.
These rubies also are rich in the trace element chromium (which causes the red hue in the mineral corundum) which gives rise to an inner fluorescence resulting in an enchanting red glow, especially in sunlight. The fluorescence also acts to cover up any darker areas in the stone, known as extinction, and helps produce the vivid colour that Burmese rubies are so famed for.