Jewelers point to celebrities, social media, and a shift away from tradition as reasons for trend.

Both categories saw highest or near-highest results in over five years at London event.

Top item is a marquise-shaped, 6.09-carat diamond ring with high estimate of $200,000.

Pinks and blues also see increases

London-based private-equity owner Epiris purchased company in 2018.

Emeralds were top sellers, as were pink and yellow diamonds.

International Gemological Institute (IGI) graded each stone in timepiece from Indian company Renani Jewels.

Six participants will receive credit, retail opportunities and selling support.

Former Alrosa USA president Rebecca Foerster returns after stepping down last year.

Fancies: Fashion driving demand for elongated Ovals, Emeralds and Radiants. Goods…