Tesserae, there are a few more Micro Mosaic pieces in my listings, even very old ones that look like Pietra Dura
Italian Rectangle Micro Mosaic Pin or Brooch
Markings: None but from Italy
Metal: Gold Tone
Accents: unique handmade filigree frame; Black background with pink, yellow, green, white, black and red floral flower design
Size: Approx. 1" x 1 1/2"
Condition:m Near mint
Flaws: None Visible