Buy Now: FDENS3081EMR Emerald Cut Fleur Diamond Pave-Set Engagement Ringbr This beautifully designed Diamond Engagement ring features 6 diamonds set in a triangle invisible setting shape besides the center stone to give a look like a 3 stone ring, the sides a tapered towards the center with rounds diamonds in descending order. Also available in 950 platinum, 14k, 18k yellow and white gold.