The price of a ruby depends on its color, cut, clarity and carat weight. A .50 carat, round, VS clarity and purplish-red ruby is for about $2500.
Carat is a unit of WEIGHT, not area. Impossible to answer without knowing how THICK the stone is. Even then it would be a best guess. However, that is a very large ruby.
The carat weight of the stones can be measured by a certified gemologist.
Natural (unheated) rubies, in particular from Burma (Myanmar), are quite rare, and especially above 5 carats they are considered world-class stones. For a first-rate clear ruby with excellent cut and the most desireable color, pigeon-blood red, collectors will pay more than $150,000 per carat. An exceptional stone, such as a 6.04 carat ruby that was sold at auction in May 2012, can fetch $500,000 per carat.
A person who is about 6 kgs can don 5-carat ruby stone which is a minimum 1/12th of the body weight.Inventive individuals who are looking for distinction and prevalence should wear this stone. This stone is energetically suggested for individuals experiencing awful wellbeing. This stone is gainful for entertainers, goldsmiths, craftsmen, government authorities, stockbrokers, and so on.
$290,750,000.00
a carat (abbreviated "ct.") and spelled with a "c" is a measure of weight used for gemstones. One carat is equal to 1/5 of a gram (200 milligrams). Stones are measured to the nearest hundredth of a carat. A hundredth of a carat is also called a point. Thus a 0.10 carat stone can be called either 10 points, or 1/10 of a carat. Small stones like 0.05, and 0.10 ct are most often referred to by point designations. A one carat round diamond of average proportions is approximately 6.5mm in diameter. Note that this relationship of weight and size is different for each family of stones. For example ruby and sapphire are both heavier than diamond (technically, they have a higher specific gravity, so a 1 carat ruby or sapphire is smaller in size than a on carat diamond. Note that karat with a "K" is a measure of the purity of a gold alloy.
The Tamil name for ruby stone is "மாணிக்கம்" (Maanikkam).
Both can be equally expensive. But emeralds can be more expensive at times. To cite an example of how the colour and clarity of a stone can make it so valuable, in 1998 a 5.16 carat untreated, slightly bluish green eye clean Colombian emerald was sold at twice the rate of a diamond the same size and of highest quality! But in the normal market emerald can cost anywhere from usd 10 per carat to usd 3000- per carat depending on whether it is small, medium or large or has an unmatched grade. In general a good quality ruby of 3 ct size should cost around US$100 per carat to US$ 500 per carat. In case of burmese rubies one can double or triple the above estimates.
2500
Nothing at all...
Not that much