

Looking for advice on 2 ring designs
Hi, everyone
I am looking for advice on two engagement ring designs, as I am a complete novice. I am inclined at two concepts given by a vendor on nature-inspired designs, but with some custom adjustments. Images added are altered by AI to give as best visualization as possible. My main concerns here are:
Overall design. My partner and I love the nature theme. But I am not sure about the comfort and practicality of it - especially in her ring, which is more intricate (and also seems limited on resizing (?)). As for "my" ring, I am unsure about the size. It seems that, if the gemstone is 5mm or below, it would be too small. But if it is 6mm or above, it seems that it would make the ring/band too wide, which might make it worth reconsidering the design.
We also have a preference for lab grown gemstones. However, I am not sure if the colours and cuts above are possible to be obtained with lab grown sapphires? Tried took for alternatives, but closest I got would be for the second ring to use a dichroic moissanite. And unsure if the pear cuts / emerald cuts are suitable for the gems.
On a side note, it seems that certain jewellers have (quite a high) markup for gemstones, and sometimes even offer only commercial cuts for the desired colours. It makes me think if it wouldn't be worth to buy directly the gemstone from a gemstone high-precision cutter, and then ask for jewellers open to make a ring around the jewel (although I am afraid the "custom request".might eat up any savings from the gemstone purchase).
Any feedback and criticism would be very welcome. Thank you in advance!