Spinel usually occurs in various shades of red, pink, orange, lavender, blue, purple, brown, grey and black. Some spinels are among the most famous gemstones: Among them is the Black Prince’s Ruby and the ‘Timur ruby’ in the British Crown Jewels, and the ‘cote de Bretagne’ formerly from the French Crown jewels. The ‘Samarian Spinel’ is the largest known spinel in the world, weighing 500 carats (100 g). The transparent red spinels were formerly called spinel-rubies or balas-rubies. In the past, before the arrival of modern science, spinels and rubies were equally known as ‘rubies’. After the 18th century the word ‘ruby’ was only used for the red gem variety of the mineral corundum and the word ‘spinel’ became used. Spinel is a durable gemstone that is perfect for all jewelry uses.
Hexagon Blue Montana Sapphire | 1.00cts | #12-2659
Natural Royal Blue Sapphire Round "Roulette" Cut | 1.22cts | #11-1376
sunstone 101, Pineapple Cut Oval Pair, 2.89 cts total
ruby #19-585, Oval Modified "Portuguese" Cut, 1.52cts
zircon blue 264, Round "Portuguese" Cut, 10.67cts
Round Pair of Blue Montana Sapphires Portuguese Cut | 1.38 cts total | #12-2687
sapphire yellow #14-558, Cushion "Portuguese" Cut, 2.18cts
Round Pair of Montana Sapphires Portuguese Cut | 1.47 cts total | #12-2689
Blue Montana Sapphires Oval Pair Portuguese Cut | 1.45cts total | #12-2688




