The 'New Slaves' hitmaker, whose girlfriend Kim Kardashian gave birth to their first child, daughter North West, in June, was spotted looking at diamond-encrusted jewellery for their upcoming wedding at Cartier in Beverly Hills.
A source told gossip website X17.com: "Kanye was looking really carefully at wedding bands, like he was making a big decision. And by big, I mean, BIG -- the stuff he was looking at was the most expensive, biggest diamonds in the whole store."
The 36-year-old rapper left the store empty-handed despite handing over his credit card at the counter and it is believed he ordered a custom-made piece for the 'Keeping Up with the Kardashians' star, 32, who was married twice before.
A source previously revealed that the couple, who were spotted out together in public for the first time with their two-month-old daughter this week, are in the final stages of planning their big day, which is tipped to take place in Paris.
The insider said: "He wants something really cool and big and over-the-top. They'll most likely have a destination wedding. Kanye has never been married before and wants a big wedding. So Kim is getting used to the idea again."