I have priced the ring for spec as shown and described here. They take 6-8 weeks to make.
This style has always been one my favorites. The ring show has been sold and it had a 2.5ct E vs color vs IGI certed lab grown old European cut center. The mounting is platinum in Edwardian style with natural old cut diamond halo, near colorless vs1-si1, approx 1 carat total. The ring with this size center faces 14.7mm.
We can also use 18k yellow or rose gold, or a mix of both. Like with the shank in yellow gold and the prongs in platinum gold that is always a winning classic combo very reminiscent of the Edwardian era. Price is the same regardless of metal choice.
I can also just make the mounting for your stone of any size or shape, or use a larger or smaller lab diamond, contact me for details and exact pricing.