BIG 17.9Ct Solid Australian Black Crystal and similar items

This item is crafted in solid 14k white gold with diamonds and solid Australian Lightning ridge Black Crystal transparent Opal. the opal is approx 27.5x16.8mm! approx 17.9Ct - rare large size! and is solid natural untreated Australian Lightning ridge black Opal - not doublet and not triplet not boulder but solid black opal. it has smooth polish and has no cracks no crazing. please see photo agains the light - transparent and no cracks. as with most opals the colors are stronger on the Sun and direct indoor light and not so in a dark/low light. the item as in new condition! length approx 17?, marked for 14k gold and fully tested. the diamonds aprox from 1.5 to 1.9mm - they are all different! large, well made and substantial in weight - 7.13g! please see photo. under direct light it shows some neon moving colors and in lower light it is toffy transparent color - please see photos and video. video taken under direct indoor ceiling light to show its full potential. great as a birthstone because it is untreated natural mined opal or just for an opal lover! Made in Antique Edwardian style! comes in a jewelry case! can be gifted immediately! smoke free environment and fast USA priority insured shipping! thank you!