: Rubies look different under office fluorescent lights versus sunlight. Always check the "glow" in natural daylght.
: Rubies are rarely cut to "Ideal" proportions like diamonds because the cutter’s goal is to preserve as much weight and color as possible. Look for a cut that minimizes "extinction" (dark dead spots) and "windowing" (see-through areas). Summary Checklist for Buyers best rubies to buy
Color is the single most important factor in determining a ruby's value. A "perfect" ruby is not just red; it is evaluated based on three sub-factors: : Rubies look different under office fluorescent lights
: These rubies often have higher iron content, leading to a darker, more brownish-red or "garnet-like" appearance. They are durable and excellent for daily-wear jewelry. 3. Clarity and "Silk" Look for a cut that minimizes "extinction" (dark
: The gold standard. Burmese rubies, specifically from the Mogok Valley, are famed for their high chromium content and low iron, which gives them a natural fluorescence that makes the stone "glow" even in low light.
The Quest for the Crimson King: A Guide to the Best Rubies to Buy
: The best rubies have a primary pure red color. While most have secondary hints of orange, purple, or pink, the most valuable "Pigeon’s Blood" rubies exhibit a deep, vivid red with a soft glowing fluorescence.
