Querying for mythic+ items at different ilvls

Hopefully this is an easy question, but is there a way to query for an item at a specific ilvl?

For example, I want to be able to query for the stats of Rezan’s Gleaming Eye (158712) at ilvl 430, 435, 440, etc. If I use the item API I always receive the ilvl 300 stats. Is there a query parameter or something I can use?