I love these little / medium thick walled Sommerso bowls (sometimes called 'Geode'), they come in many shapes and were made by many Italian (Murano) firms.
Here are two of a few I own that have been attributed to Cenedese, Seguso, etc.
triangular form no label
pinched form
label on base of above bowl ‘Genuine Venetian Glass – Handmade – Made in Murano Italy’
As with my bowls yours is definitely Murano, I can’t get a maker for my pieces, even the one with the label - I think so many companies made them.
So Murano yes, maker can’t help, as I am still researching all mine.
Maybe someone will be able to place your piece by its colours or height and shape?
on eBayAdam P