This element, when present in a diamond, can cause it to receive a lower color grade.
What is Nitrogen?
In this year, IDC opened its first showroom.
What is 1990?
This is the traditional birthstone for October
What is Opal or Tourmaline?
This decorative metalworking technique uses fine wires arranged into intricate patterns
What is filigree?
This is the only letter that doesn't appear in any U.S. state name.
What is Q?
This is the largest facet on the top of a diamond
What is the table?
The Fifth C Foundation focuses its charitable efforts on these three pillars.
What are supporting soldiers and veterans, children's health and wellness, and eradicating human trafficking?
This gemstone is famous for its ability to change color under different lighting conditions
What is alexandrite?
This ancient civilization is famous for elaborate gold jewelry and the treasures found in King Tutankhamun's tomb.
What is ancient Egypt?
This food is technically a fruit, even though many people treat it like a vegetable.
What is a tomato?
On a GIA diamond plot, these colors distinguish inclusions inside the diamond from characteristics on its surface.
What are internal inclusions (red) and external characteristics (green)?
Keith was known to play what instrument
What is the accordion?
This mineral family includes both emerald and aquamarine
What is beryl?
This country is known as the birthplace of the modern diamond-cutting industry in Antwerp.
What is Belgium?
This fast-food chain once sold bubble-gum-flavored broccoli in a test.
What is McDonald's?
This scale ranks minerals by their resistance to scratching, with diamond at the top
What is the Mohs scale?
This is the most expensive diamond ever sold in IDC’s history.
What is the Mrs. Davis Pink?
This gemstone holds the title of the most sold gemstone in IDC’s history.
Sapphire
This 19th-century British monarch's marriage helped popularize sentimental jewelry, including lockets and jewelry made with hair.
Who is Queen Victoria?
This is the name for the tiny pocket inside the front pocket of jeans.
What is a watch pocket?
This famous blue diamond is displayed at the Smithsonian National Museum of Natural History
What is the Hope diamond?
This core principle at IDC ensures that every customer receives attention and service before leaving.
What is "no one walks"?
This optical effect creates a star-shaped pattern on the surface of certain gemstones
What is asterism?
This historic diamond, now known as the Regent Diamond, was discovered in India in the early 18th century and became part of the French Crown Jewels.
What is the Pitt Diamond?
This artist released the album 1989.
Who is Taylor Swift?