2.70ct Oval Faceted Colour Change Garnet 10x6.7mm

Garnets range from red, brownish red, purplish red, orange, yellow to green. The most valuable varieties of garnets are tsavorites and demantoid garnets, both of which are green. Other desirable varieties of garnets are the purplish red Rhodolite and bright orange Spessartite and orangish-reddish-brown Hessonite. Some garnets display phenomena such as colour-change and asterism, the former refers to stones that change colour when seen under a daylight equivalent light source and under incandescent lighting and the latter phenomenon when cabochon-cut stones have a whitish star on top of the dome.;The main sources of garnets are: Brazil, Tanzania, Kenya, Madagascar, Russia, Sri Lanka, Brazil and India. Garnets have a vitreous to sub-adamantine lustre, they rates 6.5-7.5 on the Mohs scale which makes them suitable for jewellery that has secure settings to protect the stones from wear. Depending on the transparency of the stone which can be anything between transparent to semi-translucent, garnets are cut into faceted gems, cabochons and beads;;Stone Size (mm): 10.02x6.69x4.39mm;Carat Weight (ct): 2.7