How much does this cost to the nearest dollar?

Seafrogs Underwater Housing Waterproof Case for Sony A7 III A7R III V.3 Series with 8 Dome Port Kit (and Standard Port), Compatible with F2.8 GM / F/4 Lens
Come with Housing Case (Already mounted with lens Tube) and also an 8 Dome Port, and Compatible for Sony A7 III A7R III Seafrogs 8 Dry Dome Port allows bugger lens such as F2.8 GM Lens, f/4 ZA OSS Lens 1/4 tripod screw on the bottom allows more extention ability Water resistant up to waterproof/Shockproof) Please kindly note that Silicone Grease (Purchase separately) will help O ring Well seal this underwater case. ( Please contact seller If you are not sure what kind

Price is $619.00
Price: $619