So I brought it in to have it looked at by the jewellery valuer I use, and he thought it was a beautiful stone! He assessed it as a transitional stone but edging into an early round. He measured it as 7.35mm x 7.36mm x 4.51mm and said it’s approximately 1.5ct based on this. He graded it as N/O colour. He said that this is all approximate as it’s in its setting, and he can only go off what he can see. What he did say was that it was amazing clarity, which I’m not surprised by! He conservatively said vvs1-vvs2 as he wouldn’t feel comfortable marking it better without sending to GIA! I’m delighted!