The price of a Carat 2.5 diamond can range relying on many factors, which includes its reduce, coloration, clarity, and form. different elements which include marketplace call for, deliver, and area also can affect the price of a diamond. On average, a Carat 2.5 diamond can range in value from $10,000 to $50,000 or more, relying on its traits. A diamond with tremendous cut, color, and clarity grades will generally command a better rate, while a diamond with lower grades might be less valuable. it is important to have a expert diamond appraiser examine a specific diamond to determine its precise price.