DeLizza and Elster a/k/a Juliana. These gorgeous pieces are featured on page 218 of Ann Pitman's Juliana Jewelry Reference Guide in topaz.  Red commands a higher value.  The topaz brooch is valued at $150 - $200.
The topaz earrings are valued at $95. - $125.  Don't forget to zoom in for large crisp photos.

Brooch:  Layered hallmark Juliana rosettes of pronged ruby red chatons and pronged aurora borealis chatons.  Center rosette is surrounded by pronged ruby red navettes.  Japanned setting.

Measurements:  2 1/2" in diameter 1/4" profile.

In absolutely pristine condition.  All chatons are present and brilliant.  All navettes are present and brilliant.  All chatons are present and brilliant.  All prongs are present and secure.  No flaking to the japanning.  Pin closure in perfect working condition.

Earrings:  Two hallmark Juliana raised rosettes with two ruby red chatons and one ruby red navette.  All prong set.  Japanned setting.

Measurements:  1" long, 3/4" wide

In pristine condition.  All chatons present and brilliant.  Navaette present and brilliant.  Aurora borealis chatons present and brilliant.  All prongs are present and secure.  Clip ons in perfect working condition.  No flaking to the japanning.