18k Solid Gold No Heat Ruby & Diamond Ring Size 7 | IndulgemsThis ruby stole my heart the second I saw it. It does not just sit there. It glows. At 2. 03 carats, this natural ruby shows a vivid red with a soft pink whisper. In sunlight, it lights up from within. That strong fluorescence gives it that electric glow fine Burmese rubies are known for. It feels alive on the hand. And it is no heat. That matters. Most rubies are heated to deepen color. This one was not. What you see is how the earth made it.