It varies with conditions, but you can get one up to 600 700 dlls check this link: http://www.gunsamerica.com/976978463/Guns-For-Sale/Gun-Auctions/Pistols/Colt-Double-Action-Revolvers-Modern/Colt_Diamondback_38_Special.htm
If it is mint condition about 600 to 700 dollars
100-400 USD
No more than 225 USD
value depends on overall condition.............
On the butt
400 to 600 dollars depending on condition and where you live.
About $250 in excellent condition.
At least $2,500.
100-1000 usd
100-1000 depending on specifics
500.00$
50-200