Gems and Jewellery Industry

26. Which Indian city is known for its traditional gold jewellery designs and craftsmanship?
a) Kolkata
b) Hyderabad
c) Varanasi
d) Thrissur

27. What is the process of giving a protective coating to metal jewellery to prevent tarnishing called?
a) Plating
b) Enameling
c) Rhodium plating
d) Oxidizing

28. Which gemstone is known for its pink color and is associated with October?
a) Emerald
b) Sapphire
c) Opal
d) Tourmaline

29. Which precious metal is known for its lustrous white color and is a popular choice for diamond settings?
a) Gold
b) Silver
c) Platinum
d) Palladium

30. What is the process of cutting and shaping gemstones into smooth, rounded forms called?
a) Cabochon
b) Faceted
c) Tumbled
d) Rough