We report a rare case of grape shaped coronary aneurysm of first diagonal branch of left anterior descending artery (LAD) which has been rarely reported in literature. Coronary atherosclerosis with negative vascular remodelling results in coronary stenosis and positive vascular remodelling result in coronary aneurysm.Local vascular pathobiology varies markedly even in a short segment of coronary artery where two focal stenoses sandwich one aneurysm resulting in grape shaped coronary aneurysm which is rare to see in clinical practice. We successfully revascularised the diagonal with Drug Eluting Stents (DES) followed by postdilatation with good angiographic result.