Most Natural Gemstones have inclusions and the ones with no visible inclusions are extremely rare & expensive. So, select best possible gemstone within your budget. Highly included gemstones with dark inclusions, cracks & low transparency are cheap but not preferred for astrological purpose. Gemstones with less visible inclusions & good transparency are ideal for astrological purpose. Make gemstone in appropriate metal as each Astrological gemstone is assigned with specific metals in respect to the planet it represents in Vedic astrology. Wear activated & energized astrological gemstones as per Vedic rules for best results.