GIGGL
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The Laboratory is equipped with state-of-the-art instrumentation, and applies standard gemmological, as well as advanced analytical, techniques to each determination it makes. Building on our cornerstones of meticulous characterization and disclosure, GIGGL has a long tradition of acquiring staff who are experts in the field of gemstone testing and reporting.
09/05/2016
Ruby is the most valuable variety of the corundum mineral species, which also includes sapphire. Rubies can command the highest per-carat price of any colored stone. This makes ruby one of the most important gems in the colored stone market. In its purest form, the mineral corundum is colorless. Trace elements that become part of the mineral’s crystal structure cause variations in its color. Chromium is the trace element that causes ruby’s red color.
MOGOK is Myanmar’s legendary valley of rubies; the source of many of the world’s most fabulous gems.
In pictures, On May 12, 2015, a 25.59-carat ruby ring sold for $1,266,901 per carat, setting a new record at auction for a colored gemstone.
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29/B Zakaria Street
Kolkata
700073
Opening Hours
| Monday | 9am - 8pm |
| Tuesday | 9am - 8pm |
| Wednesday | 9am - 8pm |
| Thursday | 9am - 8pm |
| Friday | 9am - 8pm |
| Saturday | 9am - 8pm |
