look at the drawing.. Ring to the left.. IF my ring,,and yours was mint, or very good shape you would see it better. Luft. Lazy lightning bolts..Hard to see but small talons gripping lazy bolts... Regardless your band is part of the series. All with the super thin band, nice taper back to the cartouche [front]. Your photos are just not good enough to determine authenticity.. Ask around,,maybe someone has a cam with 'Macro' and take some good photos for you....