They are Crown Trifari with copyright, so they are anywhere from 1955 to 1969. (I'm leaning toward the mid to late 60s....and it helps that I was there). Goldtone setting with ivory / off white enameling (not yellow) Backs are brushed goldtone. You can't see the crown on the "T" in Trifari in the close up, but it's there! Ruler shot gives idea of size. No flaws. Will come in a gift box.
ARE YOU among those proud to be unpierced? If so, you will have many to choose from when shopping here. LOTS of vintage as well as classic clip on earrings are listed. Some dangle some not. The clip on dangle earrings are all on the same page

ON SALE? It could be. Private sales are done here from time to time so look for a dark pink sale banner with a discount code (percentage off) on any of my shop pages. Individual items do not show sale prices during private (non-site-wide) sales.

This item is sold from an excellent, highly rated vintage boutique in Northfield, OH.