Gemstones Market By Product Type (Diamond, Emerald, Ruby, Sapphire, Alexandrite, Topaz, Others), By Product Format (Natural, Synthetic), By End User (Jewellery & Ornaments, Bangles, Necklaces, Pendants, Earrings, Rings, Anklets, Brooches, Luxury Art), By Region and Companies - Industry Segment Outlook, Market Assessment, Competition Scenario, Trends and Forecast 2024-2033