| http://www.w3.org/ns/prov#value | - BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side view of a gemstone carrying a coating on its pavilion in accordance with certain embodiments of the invention; FIG. 2 is a schematic cross-section-view of a coating in accordance with certain embodiments of the invention; FIG. 3 is a schematic cross-sectional view of another coating in accordance with certain embodiments of the invention; FIG. 4 i
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