Red-heads, especially, are drawn to this lemony variety of quartz, which was an Art Deco favourite of Hollywood icons Greta Garbo and Joan Crawford. This November birthstone feels autumnal – Klenota's citrine ranges from pale golden yellow, to honey or almost brown – some with rainbow or sparkle inclusions. If she has pianists’ fingers, a simple square-cut stone will drip with elegance. Or for dramatic contrast, how about a chunky statement ring? We suggest citrine framed by blue tanzanites. Husbands – surprise her on your 13th anniversary with an eternity ring of tiger coloured stones... all wrapped around her finger.