Ring of Evos Isle, +1/+1 Counters, Destroy Equipment

[La_Jungla]

Say that you have had {Ring of Evos Isle} equipped on a blue creature for five turns and somehow the equipment gets destroyed. At this point the creature is +5/+5, right? Will this multiplier disappear with the equipment or will the creature remain a +5/+5 creature?

[Rass]

The +1 stay on the creature