Lab Grown Diamond Jewelry Market Size & Forecasts 2026-2035, By Segments (Metal, Jewelry Type, Diamond Cut, Carat Weight), Growth Opportunities, Innovation Landscape, Regulatory Shifts, Strategic Regional Insights (U.S., Japan, China, South Korea, UK, Germany, France), and Competitive Dynamics (De Beers, Signet Jewelers, Brilliant Earth, Pure Grown Diamonds, ALTR Created Diamonds)