Object of Desire: Three-stone diamond ring

O’Reilly’s latest catalogue is a mine of information for diamond lovers

The top lot at O’Reillus

Have you ever pondered the significance of the three-stone diamond engagement ring? To find the answer, log on to O’Reilly’s current catalogue, where all is explained. In addition, there’s an informative note on the opal, another on labradorite (named after the Canadian region where it is mined), and a diamond-buying information guide, plus 543 lots including three-stone diamond rings with estimates ranging from €1,400-€1,800, to the star lot of the sale, a ring with old cut diamonds weighing 5ct, estimate €38,000-€42,000. See oreillysfineart.auctioneersvault.com.