Oscar vs harmony test - which should I go for? Price diff is substantial!

Actually you need to ask yourself if you intend to keep the baby should there be any abnormalities. If you do not intend to keep baby should there be abnormalities, then do the tests. Otherwise, no point. Harmony is about $1,300 and tests for Down syndrome, Edwards syndrome, Pataus syndrome, Turners syndrome and gender. You can test from week 10 onwards. And is available for twins and donor eggs. If you are at high risk for any of the above then it's preferable to do a Harmony test. Oscar is about $500.