4.60ct pear diamond HPHT 925 silver blue in color Size 7 18k white gold plated. pale blue diamond HPHT heat treated to bring out the color in the stone as well as the clarity. No color was added to the stone. What are Color Diamonds? These are genuine Colored Diamonds found naturally mines mainly from Brazil. They are more porous than White Diamonds and are found in the upper layers of the ground relative to the White Diamonds that are mined deep. Some scientists are of the opinion that their origin maybe a Meteor that impacted earth Billions of years ago. What is their nature? Colored Diamonds are not found in the state as they are sold. They are made from earth mined rough rock found in mines of Brazil. The Rock color varies from Light Blue, Dark Blue, Champagne, Pink, Green etc. You can always message us in case you still want any more details or clarifications. Once purchased we will understand that you have read and understood the details and all sales are final