How much should I expect for a 0.91ct ring

[RickyRicardo]

Hello, I am looking to sell a diamond engagement ring. I would like to know how much I should get for it, whether anyone is interested. I have read a few posts and am considering having a retailer sell it and pay them a set fee. I would like to know what is an acceptable fee to give to a retailer and how much I should ask the retailer to sell it for. Also, If the retailer is unable to sell this, I am also willing to put it up on ebay/criaglists, if so how much should I ask? (I assume if I put it on ebay/craiglist I should markup approx 15%)

The diamond is from Maple Leaf Diamonds, and I have a GIA report to go with it.

Carat Wt: 0.91ct. Princess
brilliant: 5.22 x 5.13 x 3.87 mm
VS2
F color
Very Good Cut


Thank you in advance,

Ricky