Gemstone is a semi precious or precious mineral which is cut
and polished form to make jewellery or other adornments. Also certain rocks and
organic materials, like lapis, lazuli, amber, are also used as stones.
Most gemstones are
hard and some are soft and used in jewellery because of their shine , luster and
rarity. Gemstones are found in raw manner which are then cut to fineness and
this brings the shine and sparkle in the gemstones.
Precious stones are pure forms of stones like diamonds,
sapphire, ruby and emerald, all other
stones are semi precious. Diamond being the toughest stone the other
stones are valued by their translucent nature and fine pure color. Any gemologist
will check the originality of the gemstone by the first step, finding the physical
characteristics and chemical composition
of the gemstone.
Meaning of gemstones |
Gems are valued by their refractive index, their clarity,
hardiness and luster. Finding out the
value of each gemstone is done by various gemological institute methods. As for
the buyers diamonds are simply graded in to four terms, color, cut , clarity and carats.
Usually certified gemstone dealers have the certificate of
valuation and this helps the customer to understand the originality of the
gemstone.
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