FAQs, advice and education from from IGI Worldwide

Read more about the article See this 10-carat LGD’s color transformed from yellow to pink!
Photo credit: IGI Worldwide

See this 10-carat LGD’s color transformed from yellow to pink!

This 10+ carat HPHT produced lab-grown diamond was initially graded Fancy Intense Yellow by IGI. When it returned to the lab its color had been changed to Fancy Vivid Pink. IGI confirmed that the color had been shifted from yellow to pink through irradiation using a 5MeV Electron Beam Transfer system.

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Read more about the article RESOLVE and DDI merge to advance Responsible Sourcing
Photo credit: RESOLVE.ngo

RESOLVE and DDI merge to advance Responsible Sourcing

RESOLVE, an early pioneer in the area of environmental conflict resolution, and the Diamond Development Initiative (DDI), responsible for facilitating more efficient, formal and environmentally responsible approaches in the African diamond mining sector, will integrate their programs to strengthen their efforts going forward.

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Read more about the article Everybody loves the BLUES
Photo credit: Christie's

Everybody loves the BLUES

Maynard Ferguson had a different blues in mind when composing his jazz masterpiece for the 1993 album "It's My Time," but blue diamonds have a special appeal and character all their own. Like the call and response motifs which characterize blues jazz, blue diamonds seem to call out to each other in their individual but harmonious combinations of hue, tone and saturation.

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Read more about the article Chicken cleaning and heat treatment. What?
Image credit: Bonanzamarketplace.com

Chicken cleaning and heat treatment. What?

Treatments have been used to enhance the appearance of gemstones since ancient times.  The Egyptians, Greeks and Romans used dyes, coatings, oils and other methods to improve the color, durability and luster of their gemstones and pearls. But the most fascinating and fanciful tool used for enhancements may very well be the humble chicken.

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Hue, Tint, Saturation
Credit: Albert Munsell

How the gemstone Color Universe works

Gemstones and fancy-colored-diamonds appear in all the colors of the rainbow, at different shades, with different intensities. Since the human eye can distinguish around 13 million shades and nuances of color, gemologists have developed a consistent method of mapping a gemstone's proper position in the broad 'Color Universe.'

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Read more about the article Beautiful, creative 2020 proposal stories
Photo credit: Pinterest.com

Beautiful, creative 2020 proposal stories

The stories of beautiful, creative 2020 wedding proposals are ongoing. This is something to celebrate. Something to share and spread. Every time I hear of a new adaptive, creative spirited marriage proposals during these past months are uplifting. I thought it would be nice to "share and spread" some of that joy here.

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Read more about the article Three cheers for America’s red, white and blue gemstones
Photo credit: Jon Sailer, Unsplash

Three cheers for America’s red, white and blue gemstones

Right now there are delicious hot-dog, hamburger, steak and brisket barbecues occurring across the USA. There are potato salads, crisps and coleslaw. There's corn on the cob and baked beans. I am inspired to mark America's birthday with the sparkle of three American gemstones, all local to the USA, in her three patriotic colors.

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