More than 250 gem, jewelry, and mineral companies are expected to exhibit, including the American Gem Trade Association.
IGI Education - Are Lab Grown Diamond Color Treatments Permanent?
As lab grown diamonds continue to gain popularity, jewelers want to know if modern processes that alter the diamond’s color are permanent.
Brought To You By IGI
Efforts to improve color in natural diamonds began centuries ago with oils, dyes and bright foils applied to the pavilions of diamonds in closed-back mountings. In modern times more sophisticated chemical coatings may be used to lighten the apparent color of diamonds in the D-Z range. These treatments can be scratched, worn off or changed with heat or chemical exposure, so they are not considered permanent. As such, IGI will not issue a grading report for such diamonds.
What About Lab Grown Diamonds?
What Causes Brown Color?
IGI Color Notations Outside the Colorless Range.
- Blue, pink or green at saturations over J are considered Fancy Light
- Blue, pink or green at saturations N-Z are considered Fancy
When present in the NOPQR range: IGI comments include Very Light Brown or Very Light Gray
- When present in the S-Z range: IGI comments include Light Brown or Light Gray
- Note that color grades under N are reported as a two-letter range (N-O, O-P, etc.)
- For yellow diamonds in the N-R range, IGI can include the comment Very Light Yellow
- For yellow diamonds in the S-Z range, IGI can include the comment Light Yellow
Please contact IGI with any questions at www.igi.org.
This year’s Design Atelier is full of gems.
They’re a testament to the power of excellent design.
The most trusted diamond report, available in print or the GIA App.
This year’s honorees include one of Florida’s largest independent jewelers and two multi-store independents in the Chicago and New York areas.
The industry’s most influential contemporary designers are showcasing their latest jewelry designs.
The marketing agency has integrated its first C-suite.
Navigate origin determination with Continuing Education seminars offered by the GIA Alumni Collective™.
The jewelry trade show also will debut educational content centered around social media.
Luxury kicks off today, with the full show in swing on Friday.
One of the three new collections was inspired by the legend of a woman who traded her mansion to Cartier for two strands of natural pearls.
Rob Ballew will be tasked with communicating the jewelry giant’s plans and financial performance to investors.
With the app, customers receive a 15-day insurance offer on new purchases while their coverage needs are being evaluated.
From consumer trends to retail technology, these are the JCK Talks sessions that should be on attendees’ radar.
Signature pieces from Cartier and David Webb will appear in the June jewelry auction.
They will be celebrated at the annual dinner dance and gala in the fall.
Gemologists have long used machines in diamond grading but technology has made it possible for them to “learn” how to do it on their own.
Supplier Spotlight Sponsored by IGI
Watch retailers Jeffery Bolling and Bobby Bengivengo discuss employee training, customer education and the sticky subject of future value.
The company has plans to revamp the Movado brand and offer less expensive watches this year.
Set with a 118-carat unheated Sri Lankan sapphire, it just sold for $3.4 million at Phillips jewelry auction in Hong Kong.
Sponsored by Noam Carver
As cybercrime incidents threaten the industry, jewelers need to know what they’re up against and the best ways to protect their businesses.
The Pittsburgh jeweler is redoing the lighting and showcases, and adding a full hospitality bar as well as new shop-in-shops.
The Yurman Family Crystalline Pass is inside the museum’s brand-new Richard Gilder Center.
Zale has more than 40 years’ experience in the diamond industry, including 17 years as Stuller’s VP of diamonds and gemstones procurement.
The Strip is full of new restaurant and entertainment offerings.