Dark Welo 6.60Ct Very Rare Ethiopian Dark Base Welo Opal Rough

Amazing rare dark base Ethiopian 6.60 ct rough welo opal. This is a natural untreated freeform shaped piece with flashes of red and green.  Collect as a specimen or create a piece of jewelry. See item information.  Item Information:  Dimensions (mm) 15 x 13 x 7.3mm Weight (carats) 6.60 carats Type: Rough Shape: Freeform Gemstone: Natural Dark Welo Opal Rough (Untouched)  Treatment: Untreated / Unheated (Real Dark Base)  Origin: Ethiopia  Opal Type: Natural black base  Condition: Trade as specimen better, not easy to cut, gamble to cut  Reference:  Dark Opal Reference: https://www.gia.edu/gems-gemology/winter-2014-gemnews-new-deposit-black-opal-from-ethiopia  https://www.opalauctions.com/learn/opal-information/natural-black-opal-are-you-asking-the-right-question  UNTREATED black/dark Ethiopian opal body colour was not black at all. It was more of a very dark brown when observed under light and loop.  Raw Condition: All rough are gamble grade, it might be facet grade or specimen grade, all by your luck as these are totally untouched rough.  All photos show exact item you will receive. Unedited photos taken with iPhone in natural outdoor light except for cover photo professional shot.  New in original packaging as shown in listing photos with SKU# sticker added.  Weight and size measurements are approximate. Representation of color may vary due to device settings and/or lighting.  Offers considered. Bundle to save more. Questions? Please leave a comment below.