Ruby, Marquise, 5×2.5mm

Description

Ruby is the red variety of the mineral corundum, easily identifiable by its deep crimson colours, caused by the presence of chromium in the corundum.

Varying from transparent to fully opaque in clarity, rubies can often contain needle like inclusions, and are usually heat treated to improve the overall colour and clarity of the stone.

The birthstone for July, Rubies has generally been known as the stone of passion and protection and is excellent for balancing emotions and encouraging courage and motivation.

This marquise faceted ruby measures 5mm x 2.5mm.

Ruby has a hardness of9 on the Mohs scale and a specific gravity of 4.00.

Please note that due to the nature of the stone, each stone is unique so colours will vary and natural inclusions and zoning may be present.

Care: As with all gemstones, care must be taken. It is not advised to place rubies stones in an ultrasonic, steam cleaner or chemical cleaning solution. Rubies can be easily cleaned with a warm soapy water mix or an untreated cloth.

It is advised to avoid exposing ruby to prolonged periods of heat and light.

A slight tolerance of +/- 0.25mm should be expected with these stones and these rubies are sold individually.

Cooksongold Ruby is sourced from: Thailand, Myanmar or Mozambique.

Rubies and Sapphires purchased from Cookson Precious Metals Ltd are natural and heat treated.

Catalogue Page Number p157