Here are 50 keyword ideas more tailored toward the U.S. market (search terms people are likely to use in the U.S.) for a site like PhotonCarve.

These are ideas — to get actual traffic / search volume you’d validate them with a tool (e.g. Ahrefs, SEMrush, Google Keyword Planner).

50 U.S.-oriented SEO Keyword Ideas for a Crystal / Photo-Engraving Business

1. 3D crystal photo engraving
2. custom photo crystal gift
3. personalized crystal photo keepsake
4. laser engraved crystal photo block
5. memorial photo crystal gift
6. wedding photo crystal engraving
7. pet photo in crystal gift
8. LED light base crystal photo
9. photo inside crystal block
10. 3D laser crystal engraving
11. custom engraved crystal portrait
12. crystal photo cube with light
13. etched glass photo keepsake
14. personalized crystal photo block
15. 3D photo crystal memorial
16. crystal photo gift ideas
17. optical crystal photo block
18. anniversary photo crystal
19. birthday photo crystal gift
20. crystal photo memento
21. keepsake photo crystal
22. color photo crystal engraving
23. high resolution crystal engraving
24. photo crystal company USA
25. custom crystal photo design
26. 2D / 3D crystal photo engraving
27. crystal photo awards & gifts
28. personalized memorial keepsake crystal
29. luxury photo crystal gift
30. custom glass & crystal photo
31. heart shaped photo crystal
32. crystal photo art block
33. personalized 3D photo crystal
34. photo into crystal sculpture
35. crystal photo block with base
36. engraved 3D photo in crystal
37. crystal portrait gift
38. custom 3D crystal cube
39. crystal photo keepsake USA
40. custom 3D crystal engraving service
41. internal laser crystal photo
42. 3D photo crystal for mom
43. 3D photo crystal for dad
44. crystal photo gift shop
45. custom memorial crystal photo
46. best photo crystal engraving
47. top crystal photo gift
48. crystal photo trophy engraving
49. photo crystal with LED stand
50. 3D laser etched photo crystal

If you like, I can run a tool and pull actual U.S. search volume, difficulty score, and suggested keywords out of those 50 and give you a ranked list. Do you want me to do that next?