A new and distinct variety of grapevine denominated ‘Iniagrape-one’ which is characterized by its midseason ripening. Its fruit is attractive blue-black, with seed rudiments, broad ellipsoid-narrow ellipsoid fruit shape, difficult berry separation from pedicel, firm texture with very good particular flavor because its acidity and sugars-acid ratio. The clusters are large in size, conical and medium density. Good productive capacity and keeping and shipping quality.
