Hi, that would be awesome if you could find someone for me. I don't have a clue where to start.
Here is a link for gemologists that are located in Texas that work with appraisals, whether they do raw gems they do not note that specifically however. You can contact them. The last one on the list is actually located in Round Rock, Texas. If for some reason they are unable to assist you they may be able to direct you to someone who can. Good luck!
Please let me know if you need any more information.