Wikipedia blazons it as _In the....

Wikipedia blazons it as "In the dark red field gold Russian scepter over two overturned silver anchors sea and river, about four teeth, crosswise. The shield is crowned Russian imperial crown and put it on top of two Russian scepter natural color connected ribbon of St. Andrew."

I'd blazon it as:
Gules, a sea and river anchor of four teeth overturned Argent per saltire. Over all a Russian scepter Proper.
Crown: Russian imperial crown
Others: Two Russian scepters Proper in saltire behind the shield, draped by a ribbon Bleu Celeste

https://commons.wikimedia.org/wiki/File:Coat_of_Arms_of_Saint_Petersburg_%282003%29.svg#/media/File:Coat_of_Arms_of_Saint_Petersburg_%282003%29.svg

File:Coat of Arms of Saint Petersburg (2003).svg - Wikimedia Commons