Faceted Blue Spinel Gemstones, Soviet Gem expensive throwing rainbows with the slightest

throwing rainbows with the slightest provocation

These labgrown sapphires have bubbles in them from the growth process -- we call this variety 'strawberry sapphires' since they have seeds

This one measures 30x38mm and weighs in at 81g

transforming a continuous firing laser into a powerful pulsed laser which releases its energy in discrete bursts

It weighs 74g and measures about 38x30x28mm

Faceted Blue Spinel Gemstones, Soviet Gem expensive throwing rainbows with the slightestThese are blue gems cut from old stock flame fusion spinel grown in the Soviet Union, sourced from an old collection The color intensity and darkness varies considerably from stone to stone, each is photographed individually. Blue Spinel is typically colored by cobalt, which gives it a red fluorescence with strengh varying based on cobalt concentration and codopant types. While this material is grown with the flame fusion method, in industry