The four record breaking lots from Christie's recent auction. Left to right: The 'Sakura diamond' pink diamond ring; Muzo x Argyle emerald and pink diamond earrings; the 'Sweet Heart' pink diamond ring; Burmese ruby ring

Vicki Sek, chairwoman, Christie's Asia Pacific - Jewellery Division

John Glajz

The Sweet Heart – a 4.19-carat heart-shaped vivid pink diamond ring, bought for $US6.56 million. Image credit: Christie's

A one-of-a-kind pair of emerald earrings also broke records, fetching a final price of $US2.05 million. Image credit: Christie's

A diamond ring set with a 6.04-carat Burmese pigeon’s blood ruby, was sold for $US1.81 million. Image credit: Christie's

The ‘Sakura Diamond’ sold for $HK226.275 million at a Christie's auction in May. Image credit: Christie's