Licensed p/c agent.
A homeowners policy provides coverage when you have an INSURABLE INTEREST in the property. Assuming you didn't leave the property vacant (as defined by your policy) and the policy didn't cancel the day of (highly unlikely unless you requested it), you MIGHT have coverage
Theproblem here... mysterious disappearance. Unless you can prove to your company that there was a theft (visible signs of forced entry), you MIGHT not have coverage.
The reason I can't give you a definitive answer, is because I don't know your policy. But if I were you, I'd eat the cost. After your deductible and increase on the policy for 3+ years for filing a claim, I'd just mark it up in the "lessons I learned the hard way" column. Wouldn't be worth it to me.
But, I don't know you, or your current financial situation, so take what I say with a grain of salt. However, I'll be happy to review your policy for you if you have it in PDF and let you know my thoughts based on that.