Morvarid
No; Morvarid is Persian in origin. It is used by Persian-speaking Muslims but is not an Arabic-origin name.
Yes; the word 'morvarid' (pearl) is common in classical Persian poetry and metaphorical language.
Yes; Morvarid is culturally used by Muslim families in Persianate regions. It is not a theophoric or Quranic name but is culturally appropriate.
Morvarid itself is already a feminine noun-form name; sometimes rendered as Morvaridah in Arabic-script contexts.
Common pronunciations include mor-va-REED or mor-vah-REED, with the stress on the final syllable in Persian.