3 Carat Marquise Lab-Grown Diamonds

Shop certified 3 carat marquise lab-grown diamonds at William & Sons Jewelers. Every stone is graded by IGI or GIA, shown in 360°, priced below the big online retailers and ships free.

All 3 Carat Marquise Lab-Grown Diamonds

2,564 certified 3 carat marquise lab-grown diamonds in stock. Every stone ships free with its grading report; open any listing for the 360° view, full certificate and price.

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  1. 3.03 Carat Marquise Lab-Grown Diamond, E VVS2, IGI LG831679257$732
  2. 3.57 Carat Marquise Lab-Grown Diamond, E VVS2, IGI LG836627539$672
  3. 3.60 Carat Marquise Lab-Grown Diamond, E VVS2, IGI LG836633791$678
  4. 3.54 Carat Marquise Lab-Grown Diamond, E VVS2, IGI LG836633793$692
  5. 3.59 Carat Marquise Lab-Grown Diamond, E VVS2, IGI LG837610131$676
  6. 3.59 Carat Marquise Lab-Grown Diamond, E VVS2, IGI LG837610134$676
  7. 3.52 Carat Marquise Lab-Grown Diamond, E VS1, IGI LG837610135$638
  8. 3.60 Carat Marquise Lab-Grown Diamond, E VVS2, IGI LG837610136$678
  9. 3.60 Carat Marquise Lab-Grown Diamond, E VVS2, IGI LG837610138$678
  10. 3.53 Carat Marquise Lab-Grown Diamond, E VVS2, IGI LG837611648$690
  11. 3.50 Carat Marquise Lab-Grown Diamond, E VVS2, IGI LG837611652$685
  12. 3.60 Carat Marquise Lab-Grown Diamond, E VS1, IGI LG837611653$626
  1. 3 Carat Marquise Lab-Grown Diamond, E VVS1, GIA 1525818779$3,647
  2. 3.01 Carat Marquise Lab-Grown Diamond, D FL, GIA 1533586245$13,382
  3. 3.08 Carat Marquise Lab-Grown Diamond, E VVS2, GIA 2534396765$2,122
  4. 3.03 Carat Marquise Lab-Grown Diamond, E VVS2, GIA 2536174546$4,018
  5. 3.02 Carat Marquise Lab-Grown Diamond, D VVS2, GIA 2537493944$2,402
  6. 3.70 Carat Marquise Lab-Grown Diamond, D VVS2, GIA 2537710490$3,672
  7. 3.14 Carat Marquise Lab-Grown Diamond, D VVS2, GIA 5533218073$2,409
  8. 3.03 Carat Marquise Lab-Grown Diamond, E VS1, GIA 6505832421$5,055
  9. 3.31 Carat Marquise Lab-Grown Diamond, D IF, GIA 6511346413$13,075
  10. 3.57 Carat Marquise Lab-Grown Diamond, E IF, GIA 6511708075$8,799
  11. 3.18 Carat Marquise Lab-Grown Diamond, D VVS1, GIA 6532078534$4,242
  12. 3.23 Carat Marquise Lab-Grown Diamond, D VS1, GIA 6532217966$2,341
  13. 3.24 Carat Marquise Lab-Grown Diamond, D IF, GIA 7513500847$12,802
  14. 3.68 Carat Marquise Lab-Grown Diamond, D VVS2, GIA 7536632838$3,149
  15. 3.14 Carat Marquise Lab-Grown Diamond, D VS1, GIA 7538200991$2,276
  16. 3.52 Carat Marquise Lab-Grown Diamond, E IF, IGI LG542210027$7,181
  17. 3.60 Carat Marquise Lab-Grown Diamond, G VS1, IGI LG600325282$853
  18. 3.88 Carat Marquise Lab-Grown Diamond, E VS2, IGI LG629473840$967
  19. 3.07 Carat Marquise Lab-Grown Diamond, E IF, IGI LG630443115$4,469
  20. 3.07 Carat Marquise Lab-Grown Diamond, G VS1, IGI LG633489755$498
  21. 3.53 Carat Marquise Lab-Grown Diamond, F VVS1, IGI LG636411291$3,235
  22. 3.06 Carat Marquise Lab-Grown Diamond, E IF, IGI LG638454970$4,682
  23. 3.01 Carat Marquise Lab-Grown Diamond, E IF, IGI LG643426763$4,605
  24. 3.99 Carat Marquise Lab-Grown Diamond, F VVS2, IGI LG651406555$1,187
  25. 3.66 Carat Marquise Lab-Grown Diamond, F VVS2, IGI LG660427916$1,089
  26. 3.75 Carat Marquise Lab-Grown Diamond, D VS1, IGI LG663414684$2,072
  27. 3.08 Carat Marquise Lab-Grown Diamond, E IF, IGI LG665445463$4,712
  28. 3.09 Carat Marquise Lab-Grown Diamond, F VVS1, IGI LG668411766$1,698
  29. 3.81 Carat Marquise Lab-Grown Diamond, E VS1, IGI LG668461052$1,231
  30. 3.77 Carat Marquise Lab-Grown Diamond, D VVS1, IGI LG668469411$3,326
  31. 3 Carat Marquise Lab-Grown Diamond, D IF, IGI LG669419162$5,100
  32. 3.06 Carat Marquise Lab-Grown Diamond, G VVS2, IGI LG678502194$494
  33. 3.06 Carat Marquise Lab-Grown Diamond, G VS1, IGI LG683556692$445
  34. 3.9 Carat Marquise Lab-Grown Diamond, F VS2, IGI LG685512649$698
  35. 3.01 Carat Marquise Lab-Grown Diamond, H VVS2, IGI LG685564264$463
  36. 3.34 Carat Marquise Lab-Grown Diamond, F VVS2, IGI LG693515076$994
  37. 3.09 Carat Marquise Lab-Grown Diamond, E SI1, IGI LG698501017$383
  38. 3.42 Carat Marquise Lab-Grown Diamond, F VS1, IGI LG698513047$1,017
  39. 3.02 Carat Marquise Lab-Grown Diamond, D IF, IGI LG698549085$3,834
  40. 3.04 Carat Marquise Lab-Grown Diamond, D IF, IGI LG698549086$3,858
  41. 3.62 Carat Marquise Lab-Grown Diamond, E VVS1, IGI LG700511971$4,477
  42. 3.01 Carat Marquise Lab-Grown Diamond, D IF, IGI LG702512849$3,822
  43. 3.73 Carat Marquise Lab-Grown Diamond, E IF, IGI LG702577028$6,159
  44. 3.99 Carat Marquise Lab-Grown Diamond, E VS1, IGI LG704545743$1,204
  45. 3.87 Carat Marquise Lab-Grown Diamond, F VS1, IGI LG705524003$888
  46. 3.56 Carat Marquise Lab-Grown Diamond, F VVS2, IGI LG706550119$917
  47. 3.82 Carat Marquise Lab-Grown Diamond, E VVS1, IGI LG707523159$1,497
  48. 3.76 Carat Marquise Lab-Grown Diamond, E VS2, IGI LG707531718$769
  49. 3.63 Carat Marquise Lab-Grown Diamond, D VS1, IGI LG709530601$2,006
  50. 3.01 Carat Marquise Lab-Grown Diamond, D IF, IGI LG710570163$3,834
  51. 3.32 Carat Marquise Lab-Grown Diamond, D IF, IGI LG710570165$4,193
  52. 3.30 Carat Marquise Lab-Grown Diamond, D IF, IGI LG710580689$4,182
  53. 3.58 Carat Marquise Lab-Grown Diamond, G VS1, IGI LG712533208$757
  54. 3.5 Carat Marquise Lab-Grown Diamond, E VS1, IGI LG713596078$1,369
  55. 3.37 Carat Marquise Lab-Grown Diamond, E VS1, IGI LG715526666$1,060
  56. 3.51 Carat Marquise Lab-Grown Diamond, D IF, IGI LG717540398$7,142
  57. 3.51 Carat Marquise Lab-Grown Diamond, E FL, IGI LG717586084$9,409
  58. 3.61 Carat Marquise Lab-Grown Diamond, E VVS2, IGI LG719575104$1,166
  59. 3.99 Carat Marquise Lab-Grown Diamond, D VVS2, IGI LG720558744$2,047
  60. 3.61 Carat Marquise Lab-Grown Diamond, D VVS1, IGI LG723545502$2,110