## How do you find the specific gravity of a diamond?

When a gem is weighed in air and then weighed in water the loss of weight is equal to the weight of its volume in water displaced. The weight of the gem in air divided by the loss of weight in water gives the specific gravity of the stone or material.

## Why Diamond has highest specific gravity?

Most gemstone substances are two to four times denser than an equal volume of water. Specific gravities are expressed in decimal numbers, for example, 4.00 for corundum, 3.52 for diamond , and 2.72 for quartz. That’s because sapphire has a higher specific gravity.

Cinnabar

## What does a specific gravity of 1 mean?

If the relative density is exactly 1 then the densities are equal; that is, equal volumes of the two substances have the same mass. If the reference material is water, then a substance with a relative density (or specific gravity) less than 1 will float in water.

## How do you test specific gravity?

The normal method of determining specific gravity is to weigh the specimen dry (DW), then to suspend the specimen in water on a string, and to measure the weight pulling on the string (WW) (specimen weight suspended in water). Then you subtract WW from DW, and divide the difference into DW.

## What is the definition of specific gravity?

Specific gravity, also called relative density, ratio of the density of a substance to that of a standard substance.

Conchoidal

## What units is specific gravity measured in?

It has the SI unit kg m3 or kg/m3 and is an absolute quantity. Specific gravity is the ratio of a material’s density with that of water at 4 °C (where it is most dense and is taken to have the value 999.974 kg m3).

## What is a diamond’s transparency?

OpaqueTransparent

## What is the rarest gem?

Painite

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## What is the most expensive gemstone ever sold?

1 CTF Pink Star (\$71.2 Million) In November 2018, the most expensive gemstone ever sold at auction and the largest Internally Flawless Fancy Vivid Pink diamond ever graded by the Gemological Institute of America was sold for \$71.2 million in Sotheby’s in Hong Kong.

Sunrise Ruby

## What specific gravity is normal?

The normal range for urine specific gravity is 1.005 to 1.030.

## Why is specific gravity important?

Significance and Use 4.1 Specific gravity is an important property of fluids being related to density and viscosity. Knowing the specific gravity will allow determination of a fluid’s characteristics compared to a standard, usually water, at a specified temperature.

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