If the stone has been dyed, coated, painted, varnished or sputtered. shifting to pink) by a colour stability testħ. the colour of the stone is not stable and shifting out of the padparadscha colour range (e.g. the stone has been treated by irradiationĦ.

If the stone has been treated as described in Information Sheets #2 and #3ĥ. The presence of yellow or orange epigenetic material in fissure(s) affecting the overall colour of the stoneĤ. If the stone has major uneven colour distribution when viewed with the unaided eye and table up +/- 30°ģ.

While color alone as noted above can show the subtleties between orange and pink and padparadscha, a recent phenomenon has revealed that certain sapphires may appear as padparadscha at first, but fade over time into a pastel pink colored sapphire.Īs a result, the LMHC in its Information Sheet #4 Publication updated the list of Padparadscha disqualifications:ġ.If the stone has any colour modifier other than pink or orangeĢ. The difference between padparadscha sapphire and a fancy sapphire:

Black star sapphire value