56. What is the process of giving a metal jewellery piece a high polish and shine called?
a) Plating
b) Enameling
c) Oxidizing
d) Polishing
57. Which gemstone is known for its deep green color and is associated with August?
a) Emerald
b) Sapphire
c) Peridot
d) Garnet
58. Which organization is responsible for promoting the export of Indian gem and jewellery products?
a) GIA (Gemological Institute of America)
b) BIS (Bureau of Indian Standards)
c) IGI (International Gemological Institute)
d) GJEPC (Gem & Jewellery Export Promotion Council)
59. Which gemstone is known for its pale yellow to green color and is associated with August?
a) Emerald
b) Sapphire
c) Peridot
d) Aquamarine
60. What is the term for a gemstone that has been shaped and polished but not faceted or carved?
a) Cabochon
b) Faceted
c) Tumbled
d) Rough
