signed ‘J.E.C Co.’ for J.E. Caldwell, no. G 257
About the lot
Estimate
$400,000–600,000
This stunning example of Belle Époque jewellery, which is characterized by delicate platinum mountings and white diamonds with a feminine tone, was made by J.E. Caldwell, one of the most reputable American jeweller firms founded in Philadelphia at the beginning of the 20th century. This ring incorporates a coloured diamond that the GIA has graded as ‘fancy to fancy intense blue’, a rare and highly sought-after colour in the market. The range in colour is due to the fact that the stone could not be removed without damaging the mounting. It’s unusual that a coloured diamond such as this would have remained in its original mounting and that it has not been recut in order to enhance the colour, so it has retained its original charming proportions. Whether this is a fancy or fancy intense blue, this is a rare stone and a truly rare find.