Gatsby Jewellery Ltd has dated this piece to the 1960s.
The stone is secured in a four claw white gold and sits between a line of six (three each side) high white and internally clean baguette cut diamonds, fixed to a 14k white gold curb chain.

Total length 16 inches, including the diamond-set segment of the chain.
Accompanied by a sapphire report from Gemmological Certification Services (GCS) stating the sapphire shows no indication of heating, and is Sri Lankan (Ceylon) in origin.

Cut – Cushion cut sapphire with baguette diamonds.
Colour – The diamonds are G to H.
Clarity – The diamonds are VS1 to VS2.
Carat – The sapphire is a known 1.53 carat, with approximately 0.60 carat of diamonds.
Circa – 1960.
Measurements – The sapphire is 6.45 x 7.43mm. The pendant, not including the bale, is 31.5 x 26.9mm.
Metal – 14k white gold. Tested.
Gatsby Jewellery Ltd has dated this piece to the 1960s.
Gatsby jewellery are a husband and wife team who have years of knowledge and experience in dealing in fine antique jewellery.
You can view the stock and full dealer information on the Gatsby Jewellery Ltd Profile Page