What to use when referring to the character 格
Go to http://www.cantonese.sheik.co.uk/scripts/wordsearch.php

Search 格 by Chinese word. You will find many compound words with 格

The following are the most common ones


  風格, 品格, 人格, 嚴格, 資格, 價格, 規格, 體格


You can say 風格的格, 品格的格 ... and so on

You can also use terms like 格局, 格鬥, 格調, 格式. To clarify which character you meant to say, the examples you used just need to contain 格, it doesn't matter where it is in a compound word  

To make it extra clear, you can even use four characters idioms like

'格' as in "格格不入"

'格' as in "別具一格"