Jewellery is difficult, specially in Blender which doesn’t handle caustics well. I had to render these in 2view layers, light the stone using masked indirect lighting, and later readjust all lighting & colors in composition, had to add a fake glare light to emulate “Caustic shadow”. Anyone here with expertise in jewellery rendering? here is the figma for this project(I use figma as a replacement for PureRef because Figma links can be shared and edited by team also): https://www.figma.com/file/7XNROyymM4IJbYeVQhtwPD?locale=en&type=design