information about Gems and Jewellery
information about Gems and Jewellery :-
as we have senn jewellery has been in use since the stone age .
reasons for the popularity of jewellery included the love of beautifu things.
the desire for personal adorment and the wish to show to others the wearer s wealth or power.
jewellery was also associated with super-stitions and magic .
all these factors apply in one awy or another today.
Famous Gemstones ;-
many gemstones have become famous in ther own right .
for example :-
the largest diamond ever found was the Cullinan , which was named after Sir Thomas Cullinan ,chairman of the permier mining company in South Afrrica .
this diamond measuring about 12.5 centimetres about (5 inches)
across was found at permier mining in 1905 .
it weighed ( 3.106 metric carats ) Carats are the units used for weighing gemstons .
5 carats =1 gram
hence the Cullinan weighed 621.2 grams (over 1.333 ibs).
it was can into 105 gemstons . the largest of which calld ;-
the star of afriac no. 1 ,weighed 516 carats .
this stone is still the world ,s largest uut diamond
it now adorns the British Royal Secptre . the scond largest syone cut from the cullinan is in the Brithish imperial stat crown this superb diamond weighs 309 carats .
other famous daimonds include the Indian kah-i-noor (persian for mountain of light) which was persented to Queen Victoria in 1850 .
