Vintage art deco style citrine/ amber colored gold tone bib necklace

Vintage necklace Was labeled as vintage Givenchy at the vintage store I bought it from but I don’t know how to confirm there is no designer stamp or label. Beautiful regardless! Great condition see photos Crystals are clear and sparkly Pretty golden neutral bronze look The gem stone/ crystal is also unknown- the necklace is not light is has some weight to it and feels very well made and was from a luxury designer vintage boutique in NYC. Looks similar to a dark citrine Collar length, longer than a choker but doesn’t reach chest area. I can add a pic wearing if you’d like comment below and I’ll post