Large sparkly amber pendant

Large oval and sparkly orange-red amber on thick woven silverplated chain. Really beautiful vintage style necklace, amber itself comes from 1970s and is heat-treated. Heating Baltic amber in specialized ovens changes color from natural orange-yellow into rich dark-honey, cognac, or deep burgundy-red. You can compare this piece with other, untreated amber in my shop - the difference in color and inner landscape is visible. The shimmering internal flakes you see inside the stone are called sun spangles, they occur when internal air bubbles pop under controlled heat/pressure.
Beautiful statement necklace.
Amber pendant is 4x5.5cm, chain is 50cm long.