- Arlette 18K Yellow Gold .60CT Canadian Diamond 6-Prong Solitaire Engagement Ring$3,200.00Total diamond weight .60ct-9.09%Purchic 18K Gold 2-Tone .70CT Diamond Solitaire Reverse Tapered Engagement Ring For WomenSpecial Price $3,000.00 Regular Price $3,300.00Total diamond weight .70ct