Buying an engagement ring is a big decision. But we’re here to make that choice less daunting. Shop our stunning range of 18K yellow gold moissanite engagement rings to find the perfect way to propose to your love. 18K yellow gold is a beautiful metal for an engagement ring – it’s durable, beautiful, and will last a lifetime with the proper care. Moissanite is a beautiful alternative to diamonds with just as much versatility and durability as the coveted stone without the high price tag.