Missing black & tan female cat (Centennial)

She has been gone for several months. She's 2 years old. Her coat is striped, and all four paws are white. She is spayed, vaccinated and microchipped. No collar. Offering reward if found or if the information you provide allows me to find her. Please do not advertise pet-finding services. If you believe you have found her, please send me a detailed photo or have a local vet scan her microchip and call me. Thank you.