Zircon is another gem family I love. Sadly, it too often is confused with the synthetic cubic zirconia -- not the same thing! Zircon comes in a range of colours. This beautiful cabochon originating in Sri Lanka had been tucked away thinking I might design something for myself but Shelley T. eyed it and I lost out (again!). It was set in 18k green gold (although the picture does not fully suggest that).
Contact me about creating your own heirloom.