Such a beautiful ring, the blue is very eye catching, just stunning, a really lovely statement piece. The stone is A Grade Blue Onyx, a crystal that holds so much spiritual energy that it will bring an abundance of happiness into your life by simply being there. The Zodiac sign related is Aquarius, the Birthday month relating to this colour is September. This large solitaire measures 24mm x 20mm and is set in Sterling Silver,the band size is: UK S1/2 US 9.5. Metric 60.25 It is a comfortable fit. Please do check your size requirement before ordering.