C Chandan Das 🎓 Tutor III ⭐ 6.78K Points 📊 Chemistry Q. Diamond is lustrous because (A) It is colourless (B) It is hard (C) It is pure (D) Its refractive index is high 👁️ Show Answer 🔗 Share ⚡Menu ✅ Correct Answer: (D) Its refractive index is high You must be Logged in to update hint/solution 💬 Discussion 💬 Comment