EOTS Cut F-35 Window Sapphire Rings in Sterling Silver (F35 Gem) Style:Style F (Half-Lifted) This is a very odd

This is a very odd and rare laser crystal

These are vivid green lab created Vanadium YAG (Yttrium Aluminum Garnet) facet rough

That means cut stones give of brilliant rainbows of color

While material of this color would be called 'pink sapphire' in a gemological context

and I've finally had a few runs produce crystals big enough to separate and offer for sale

EOTS Cut F-35 Window Sapphire Rings in Sterling Silver (F35 Gem) Style:Style F (Half-Lifted) This is a very oddThese are lab created sapphires which were grown for use as a sensor window in the F35 fighter jet but didn't meet spec. They've been faceted and set in solid sterling silver rings! Note these stones glow blue under shortwave UV because of titanium contamination. This is a really cool material lab sapphire grown for windows on the F35! These aren't used on the cockpit but on a sensor array right below. There are numerous sensors on the bottom of an