(A) They are used in jewellery because of their ability to reflect and refract light.
(B) Diamond is used in cutting glass and drilling rocks.
(C) Diamond has an extraordinary sensitivity to heat rays and due to this reason, it is used for making high precision thermometers.
(D) Diamond has the ability to cut out harmful radiations and due to this reason it is used for making protective windows for space probes.
(E) Diamond dies are used for drawing thin wires. Very thin tungsten wires of diameter less than one-sixth of the diameter of human hair have been drawn using diamond dies.
(F) Surgeons use diamond knives for performing delicate operations.