Amy Kahn Russell Nautilus Shell Onyx Sterling Clip/Post Earrings

Just got these these brand new earrings by Amy Kahn Russell.  They feature almost extinct nautilus shells with black onyx cabochons set in sterling silver  1-3/4" x 3/4" Now Clips; convert to posts for $28. 

NOTE: Conversions need to be sent to Amy's studio and they recently raised their prices for this service; once I receive the converted design I still ship free of charge domestically.