Stunning handset piece features a rare astrophyllite gemstone, in a cast sterling setting. This exotic oval-cut gemstone measures 9.5 x 11.25 mm. Gem weight is 4.3 carats. Tack/pin comes complete with the clutch back shown in the second picture. Gem is mined in Russia.
Astrophyllite is a very rare, hydrous potassium iron titanium silicate gem. Its crystal habit gives astrophyllite its name, from the Greek words astro meaning "star" and phyllon meaning "leaf". Astrophyllite is usually opaque to translucent, with a submetallic luster. Owing to its limited availability and high cost, astrophyllite is seldom seen in an ornamental capacity; usually cut only into cabochons. Faceted material such as this is particularly rare.
You will receive the exact item shown in the photo, beautifully gift-boxed.