It's not quite like the English 'd'. It's very softly touched. It does almost have the "th" sound, but not like the English forceful 'th'. I would say it's extremely softly pronounced.
Yo vendo un apartamento grande con cuatro recámaras y un baño. El apartamento cuesta dos millones trecientos cuarenta y cinco mil francos y tiene una cocina, una sala, una oficina pequeña y un balcÓn.
