Yes, you do love diphtongs, and so do I. My accent pretty much doesn't have them, however. We also typically don't have vowel reduction, so that final a will never be pronounced as "uh". It's hard to make an accurate instruction without using the IPA, but it should be something along the lines of "Linn-é-à", where é is the vowel sound you'd hear in "ear" (drop the r) and à is a very short a sound that I don't think exists in American English. If you speak French or Spanish you should have a pretty good idea of how it sounds. Also, curiously, the melody of the word is a rising pitch, with the final syllable being noticeably higher in pitch than the other two, despite the second syllable actually being the stressed one. The melody is extremely dependent on the situation, however.