Hi Jonathan,

Thank you for contacting Mearto with your appraisal inquiry.
this looks very much like Lalique or Orrefors - you might look for a very faint inscription along the lower edge. If you see something let me know and I'll update this as necessary.
Based on the photos and information provided, and subject to examination, this is:

A etched leaded crystal vase
20th Century
Of oval section and tapering form, one side etched with the figure of a standing peacock.
5 inches high by 3 3/4 inches wide by 2 1/2 inches deep
PROVENANCE: inherited
$60-90*
*represents a fair-market value for auction purposes; retail or asking price may vary.