HIMINGLÆVA , the daughter of Ran , has an interesting definition of her name translating to transparent wave. Such transparency is needed in a long-lasting relationship and the first step is to make your intentions clear with this promise ring.
In Norse mythology, Aegir and Ran are a married couple that lives under the sea. Ran is a sea goddess, and her husband Aegir is a jotünn, and together they have nine daughters who all are named after the waves of the sea. Their names are bloody-hair (Blóðughadda), wave (Bylgja), foaming sea (Dröfn), pitching wave (Dúfa), the lifting one (Hefring), transparent wave (Himinglæva), welling wave (Hronn), cold wave (Kolga), frothing wave (Uðr). They are sometimes referred to as the spirits of the waves or the nine billow maidens.