Collections will take place on Level One of Earls Court from 13-15 January and allow visitors to take advantage of both shows.
The venture reflects a growing trend among gift retailers to add jewellery to their ranges, and for jewellery outlets to add gift products.
Collections show director Anna Wales said: "Collections will serve the growing retail market for jewellery in the UK and provide a platform for national and international buyers to source the best jewellery design."
She added: "It will provide the market with a leading event in the key buying dateline of January."
Clarion Events debuts its contemporary and modern art and design fair, Form, from 1-4 March at Olympia.