Thank you for choosing our plugin.
We apologize for the inconvenience.
For variable products, the plugin displays product attributes as filters. However, if you would like a feature to search for products within the popup, the plugin does not currently have this capability.
(ie. by shape, carats etc)
If these are attributes of a variable product, then the plugin shows attributes as filters in the popup. You can check the second item popup at this product.
If you require custom development, please do not hesitate to contact us here.
I hope it helps.