Late Victorian Platinum Old Mine Cut Diamond Star Brooch shell It's modelled in platinum and

It's modelled in platinum and was made in the early 20th Century

it dates from circa 1870

Tests as 18 karat gold

And then later

Late Victorian Platinum Old Mine Cut Diamond Star Brooch shell It's modelled in platinum andDATE: Victorian, c. 1900 A stunning late Victorian diamond star brooch dating from the turn of the (20th) Century. It's set with 4. 75 carats of icy old mine cut diamonds, mounted in beautifully worked platinum settings with fine millegrain detailing to the edges. The quality is exceptional, with an 18k gold back and a superb collection of stones. STONES Old Mine Cut Diamonds total carat weight approx. 4. 75ct MEASUREMENTS 3. 5 x 3. 2cm WEIGHT 8. 1g