What do you tell the jewelry designer about Britney Spears when you are creating a custom-made engagement ring? In her new fiance’s case, you don’t talk about her being a “pop princess,” but rather his “everyday princess.”

Brit’s beau Jason Trawick went to celebrity jeweler Neil Lane to come up with the perfect ring for his bride-to-be. “Jason is a romantic,” Lane tells PEOPLE. “When I asked him to tell me about Britney and what the ring would represent to them so I could find inspiration, his response was always the same — she is his princess!”

After their conversation, Lane was hard at work coming up with the delicate design, which he created from scratch, of a tiara-motif sparkler with a round and perfect white diamond in a handmade platinum setting that “looks like a mini crown.” The jewelry designer added 90 small round diamonds around the eternity band. “Jason didn’t want an over-the-top ring with a giant stone,” adds Lane.

Lane and Trawick exchanged phone calls, text messages and emails over the past month about the ring, getting it fit for his “princess.” Once Spears and her main squeeze returned home from her Femme Fatale tour, Trawick stopped into Lane’s Los Angeles store to pick up the ring, which happened less than a week before he popped the question.

“He loved it,” Lane recalls. “The guy was so excited and nervous. At the end of the day, even with all the fame, he’s still a normal guy who was about to propose to the woman he loves. He’s deeply in love with her. Britney is his princess and he is her knight in shining armor. Jason’s protective of her. He adores her. Every good fairytale needs a princess, and now Britney has a ring fit for a princess!”

More From 98.3 KEYW