758 for this ring semi mount without around 1.5ct oval center, with 2 pieces 2.5*4mm pear lab diamond and round lab diamond accents in platinum.

DovEggs 1.530ct Oval E VVS2-LAB GROWN DIAMOND-LRA137A22

https://www.doveggs-seattle.com/collections/oval-lab-diamondsmade-to-order-premade/products/doveggs-1-530ct-oval-e-vvs2-lab-grown-diamond-lra137a22