Please note there is no center stone in this setting. The price is for the setting only. Oakcrest 1 is amazing and authentic Modern era (Circa 1980) platinum three-stone mounting. It can accommodate a Rectangular Cut, either Emerald or Mixed cut stone. The center of the mounting fits a stone ranging in size from 4mm x 6mm to 4.5mm x 6.5mm, and each side stone can hold a stone ranging is size from 3.5mm x 5.5mm to 4mm x 6mm. Oakcrest 1 is further detailed with six bezel set Round Brilliant Cut diamonds set along the gallery, totaling approximately 0.15ct. The mounting is finished with a wide platinum shank and is currently a size 5.5 and can be sized to fit. Please contact us if you'd like to see if your family stone will fit.