Write a review Your name* Your e-mail* (Not for publication) Rating ★★★★★ Excellent ★★★★☆ Very good ★★★☆☆ Average ★★☆☆☆ Poor ★☆☆☆☆ Terrible Your review * * — Required information HKD Diamond Laboratories ← View details 27 Queen Street East, Toronto, ON M5C 2M6 +1 416-368-7266