Any color but pale or teal are shades I like and would use. Basically anything from ice cream green - Tiffany blue and anything in between but Aqua/turquoise is a safe bet for a color. Any shade bright or light...there will be something similar and blend able for either gender.
14K Rose Gold Vintage Floral Green Aquamarine Color Amethyst Engagement Ring Scalloped Diamonds Antique Style by DeAguiarDesigns on Etsy https://www.etsy.com/listing/272748080/14k-rose-gold-vintage-floral-green
An early 19th century paste brooch Of girandole design set with 'aquamarine' coloured vari-shaped mixed-cut pastes, the shaped surmount with central cushion-cut single stone and square and circular accents within a cannetille surround, suspending triple pear shaped drops, in gilt metal mounts with coloured foil backs, circa 1830, the central drop in open mount