A gem of the corundum family, yellow sapphire or Pukhraj is a twin of ruby and blue sapphire. It is found in yellow, golden, and orange colors, as well as in a colorless variety known as white sapphire. The best gem is said to be of lemon-yellow color. Yellow Sapphire gemstone is a mineral. After analyzing chemically, it is proved that aluminium, hydrovisil and florin are present in it.
Identification of Yellow Sapphire Pukhraj Stone
- If Yellow Sapphire gemstone is kept in milk for 24 hours it will not change color.
- When Yellow Sapphire is exposed to sunlight placed on white cloth, it gives yellow hue to the spot where the light is reflected.
- If Yellow Sapphire is rubbed on the afflicted area, It cures poisonous insect bites immediately.
PHYSICAL PROPERTIES of Yellow Sapphire (Pukhraj) :-
Properties of Yellow Sapphire can be defined by 4C’s Grading –
Color
Yellow sapphire is found in a range of hues between greenish yellow and orangish yellow. Deep pure golden yellow without any tinge of orange is considered the best color for a yellow sapphire. Sometimes the yellow color of the stone can be so pale that it can fall into the category of white sapphire.
Cut
Yellow sapphire is quite a few commonly discovered in oval cut to retain maximum weight even though cutting and getting the a great number of out of the gem. But it really is too cut and faceted into a lot of frequent and fancy shapes like cushion cut, round, octagonal, square and so on .
Carat
Yellow sapphires are usually located in all sizes up to 8-15cts. But clean large size gems with high quality bright golden yellow colour are uncommon and really priced.
Clarity
Prominently visible or even faint natural inclusions for example feathers, colour zoning, crystals and so on are typically discovered in pukhraj or yellow sapphires. This gem contains black inclusions, feathers, natural fissures which makes the cost of the gem to about US$50 per carat.
