Corundum, as a precious gemstone, is cut in a range of sizes to suit different jewelry needs. Smaller stones under 3mm work beautifully for accent stones and pavé settings. Their perfect clarity and vivid colors dazzle even at low carat weights. In the 4-8mm range, corundum makes ideal center stones for fashion rings, earrings, and pendants. Larger gems over 9mm really showcase corundum’s brilliance in statement pieces like cocktail rings and men's accessories. For major stones like engagements, sizes over 10mm ensure showstopping sparkle. While carat weight has a price impact, corundum’s hardness means even tiny stones will last lifetimes.