Searching For Jeweler: Platinum Simple Band (European Cut 4 1/2 Mm Size 8 1/2 - Miami FL

Where did everyone get their husbands wedding bands from? My fiancé would like a platinum simple band (European cut 4 1/2 mm size 8 1/2). We went to a few jewelers and they all have that embark brand and it’s around $1900.
I see some places online and they’re around 1200 or 1500. Just wanna make sure I’m going with a reputable place. Thank you.