Victorian unusual engagement rings

Antique, Victorian sapphire & diamond half-hoop ring

I have never seen a ring like this- just look at the stone arrangement

Antique, Victorian ruby & diamond ring

Antique, Victorian 2ct sapphire & diamond three-stone ring

Antique, Victorian, solitaire diamond engagement ring

Victorian, cabochon pink topaz ring

Antique, Victorian double row diamond band

Victorian, Burmese pink sapphire double heart ring