Home » colored-diamonds
IGI GemBlog
  • HOME
  • ABOUT US
    • About IGI
      • Press Room
        • Timeline
          • Affiliations
            • Importance of Certification
            • REPORTS
              • Our Expertise
                • How to Read a Report
                  • Natural Diamond Report
                  • LG Report
                • Diamond Reports
                  • Diamond
                  • Laboratory Grown
                  • Hearts & Arrows
                  • Colored Diamonds
                  • Grading Process
                  • Cut Grading
                • Jewelry Report
                  • Colored Stone Report
                    • Screening Services
                      • Sorting Services
                        • Security Seal
                          • Laserscribe
                            • Verify Your Report
                            • EDUCATION
                              • Gemological Education
                                • School Courses
                                  • Polished Diamond Course
                                  • Rough Diamond Course
                                  • Colored Stones Course
                                  • Pearl Course
                                  • Jewelry Design Course
                                  • Jewelry Cad Course
                                  • Prof. Jewelry Design - Matrix Course
                                  • CorelDraw Design Course
                                  • JewelPad Design Course
                                  • Retail Support Program
                                • Course Schedules
                                  • Tuition Fees
                                    • Enrollment Form
                                      • eLearning Courses
                                        • Demonstration
                                        • Course Menu
                                      • Enquiry Form
                                        • Gemstone Articles
                                          • Retail Support
                                            • Learn with Videos
                                              • Verify a Diploma
                                              • Gemblog
                                              • SHOWS
                                              • Consumer Services
                                              • CONTACT
                                                • Contact
                                                  • Enquiry Form
                                                  Argyle Rose
                                                  Credit: Rio Tinto
                                                  News / Opinion / IGI Classroom / For Consumers / For Professionals

                                                  Rio Tinto Debuts Argyle RoseTM

                                                  Rio Tinto recently unveiled a stunning new creation featuring pink and blue diamonds from the Argyle Mine. The Argyle Rose TM Ring features a 1.36-carat fancy deep pink radiant cut, a surround of blue diamonds from Argyle and 2.80-carats of white diamond “petals."

                                                  Post Author:By Amber Michelle
                                                  May 13, 2023
                                                  IGI D Show
                                                  Events / IGI Classroom / For Consumers / For Professionals

                                                  Watch! Video Shorts of Model Shoots from IGI D Show

                                                  Enjoy a series of video shorts featuring some of the beautiful jewelry models and dazzling adornments appearing at the first international IGI D Show this weekend at the Hilton Dubai, Al Habtoor City in Dubai, UAE.

                                                  Post Author:By IGI
                                                  May 2, 2023
                                                  Laguna Blu Diamond
                                                  Credit: Sotheby's
                                                  News / IGI Classroom / For Consumers / For Professionals

                                                  Bulgari Laguna Blu travels to Met Gala, then Auction

                                                  The 11.16 carat Bulgari Laguna Blu, the most valuable gemstone ever sold by Bulgari, will go to auction in Geneva May 12, with a pre-sale estimate of more than $25 million. With this announcement, Sotheby's is poised to complete a trifecta of extraordinary, record breaking colored stone sales.

                                                  Post Author:By John Pollard
                                                  April 29, 2023
                                                  Tiffany & Co. Landmark Store
                                                  Credit: Tiffany & Co.
                                                  News / Events / IGI Classroom / For Consumers / For Professionals

                                                  Tiffany & Co. Reopens New York ‘Landmark’ on Fifth Avenue

                                                  Tiffany & Co. has made a comeback in New York after four years of construction and relocation, and will open to the public tomorrow, with a number of changes. The Fifth Ave location is now called "The Landmark," setting it apart from other locations.

                                                  Post Author:By Angi Butler
                                                  April 26, 2023
                                                  108.39 carat pink rough diamond
                                                  Credit: Storm Mountain Diamonds
                                                  News / IGI Classroom / For Consumers / For Professionals

                                                  108 carat Pink Diamond Discovered in Lesotho

                                                  A fancy intense pink rough diamond weighing 108.39 carats has been recovered in the Kingdom of Lesotho, at the Kao mine operated by Storm Mountain Diamonds. This rare Type IIa gemstone is one of the largest pink diamonds in history to have been recovered.

                                                  Post Author:By Angi Butler
                                                  April 19, 2023
                                                  IGI D Show
                                                  News / Events / IGI Classroom / For Consumers / For Professionals / Behind the scenes

                                                  First International IGI D Show occurring in Dubai May 5-7

                                                  The first international edition of the popular IGI D Show will take place from May 5-7 in Dubai, UAE. Over 100,000 designs from 33 jewelry manufacturers will be on display for representatives from more than 150 prominent retail brands and chain stores.

                                                  Post Author:By John Pollard
                                                  April 15, 2023
                                                  The Eternal Pink diamond
                                                  The Eternal Pink Diamond | Credit: Sotheby's
                                                  News / IGI Classroom / For Consumers / For Professionals

                                                  10.57 carat ‘Eternal Pink’ Estimated At $3.3M per-carat

                                                  On June 8 "The Eternal Pink" diamond will go to auction as part of Sotheby's Magnificent Jewels sale in New York. Its pre-sale estimate of more than $3.3 million per-carat is the largest pre-carat estimate ever placed on a diamond or gemstone, according to the auction house.

                                                  Post Author:By Angi Butler
                                                  April 13, 2023
                                                  Christie's auction item
                                                  Credit: Christie's
                                                  News / Events / IGI Classroom / For Consumers / For Professionals

                                                  Christie’s $150M ‘Largest and most valuable collection’ to sell in May

                                                  Christie's is preparing for what may be a record-breaking jewelry sale featuring The World of Heidi Horten, a two-part live auction boasting over 700 pieces of exquisite high jewelry from the estate of the late European collector.

                                                  Post Author:By Angi Butler
                                                  March 28, 2023
                                                  The art of diamond grading
                                                  IGI Classroom / For Consumers / For Professionals / Behind the scenes

                                                  Video: The Art of Diamond Grading at IGI

                                                  Since the 15th century the diamond ring has been the celebrated symbol of faithfulness, love and commitment. Starting in 1975, when IGI was first established in Antwerp, the world capital…

                                                  Post Author:By John Pollard
                                                  January 28, 2023
                                                  IGI Expressions
                                                  News / Events / Opinion / IGI Classroom / For Consumers / For Professionals

                                                  IGI Expressions™ Showcase: Accessory Finalists

                                                  From a starting pool of more than 500 submissions, IGI is pleased to present the Accessory designs selected as finalists from the 2022 IGI Expressions™ Jewelry Design Competition.

                                                  Post Author:By IGI
                                                  January 23, 2023
                                                  IGI Expressions
                                                  News / Events / Opinion / IGI Classroom / For Consumers / For Professionals

                                                  IGI Expressions™ Showcase: Statement Piece Finalists

                                                  From a starting pool of more than 500 submissions, IGI is pleased to present the Statement Piece designs selected as finalists from the 2022 IGI Expressions™ Jewelry Design Competition.

                                                  Post Author:By IGI
                                                  January 19, 2023
                                                  IGI Expressions
                                                  News / Events / Opinion / IGI Classroom / For Consumers / For Professionals

                                                  IGI Expressions™ Showcase: Lightweight Jewelry Finalists

                                                  From a starting pool of more than 500 submissions, IGI is pleased to present the Lightweight Jewelry designs selected as finalists from the 2022 IGI Expressions™ Jewelry Design Competition.

                                                  Post Author:By IGI
                                                  January 17, 2023
                                                  Top 10 diamonds from auction, 2022
                                                  Photo credit: Sotheby's & Christie's
                                                  News / Opinion / IGI Classroom / For Consumers / For Professionals

                                                  The Top 10 Diamonds from 2022 Auctions

                                                  Natural diamond continue to command record breaking prices at auction. Looking back at 2022 we see a diverse set of exceptional diamonds, spanning a range of sizes, which the fall of the gavel transferred to new owners.

                                                  Post Author:By Angi Butler
                                                  December 24, 2022
                                                  The Golden Canary
                                                  Photo credit: Sotheby's
                                                  News / IGI Classroom / For Consumers / For Professionals

                                                  This $12M Masterpiece Was First Discarded as Rubbish

                                                  In the 1980s a young young girl in the DRC decided to explore a pile of rubble located near her uncle's house. While playing she found a large golden-colored rock in the pile and took it home to her uncle...

                                                  Post Author:By Angi Butler
                                                  December 22, 2022
                                                  Diavik Midnight Sun Diamond Ring
                                                  Photo credit: Musson
                                                  News / IGI Classroom / For Consumers / For Professionals

                                                  ‘Diavik Midnight Sun’ combines diamonds from Canada & Australia

                                                  Rio Tinto has introduced an 18.08 carat yellow diamond from their Diavik mine in Canada, flanked by 4.09 carats of pink diamonds from their retired Argyle mine in Australia.

                                                  Post Author:By John Pollard
                                                  December 7, 2022
                                                  IGI Expressions 2022
                                                  News / Events / IGI Classroom / For Consumers / For Professionals

                                                  Announcing the 2022 IGI Expressions Design Competition

                                                  IGI is again calling upon the world’s creatives to step forward and contribute. Starting next week submissions will be accepted for the 2022  IGI Expressions™ Jewelry Excellence Awards. Provided free of charge, this opportunity to share and celebrate talent is open to jewelers, designers, students, teachers, and fans alike.

                                                  Post Author:By IGI
                                                  October 28, 2022
                                                  47 carat Pink Eternity
                                                  Photo credit: Storm Mountain Diamonds
                                                  News / IGI Classroom / For Consumers / For Professionals

                                                  Record Breaking 47ct ‘Pink Eternity’ Sold in Lesotho

                                                  Storm Mountain Diamonds recently sold a 47.80 carat rough pink diamond. Extracted at the Kao mine in Lesotho, the largest kimberlite pipe in that country, the 'Pink Eternity' is the…

                                                  Post Author:By Angi Butler
                                                  October 26, 2022
                                                  Williamson Pink Star
                                                  Photo credit: Sotheby's
                                                  News / IGI Classroom / For Consumers / For Professionals

                                                  Pink Diamond Sells for a World Record $57.7M

                                                  A 20 minute bidding war for a pink diamond culminated in a final bid of $49.9 million, exceeding the pre-sale estimate by over 230%, and setting a record for the highest price per carat ever paid for a diamond at auction.

                                                  Post Author:By Angi Butler
                                                  October 8, 2022
                                                  HardRock Summit
                                                  Image credit: HardRock Sum
                                                  Events / IGI Classroom / For Consumers / For Professionals

                                                  IGI Presents Seminars at HardRock Summit

                                                  Over 400 exhibitors gathered at the Colorado Convention Center, many for the second consecutive year, to take part in the only USA show to bring mineral & fossil dealers and jewelry & gemstone companies together under one roof.

                                                  Post Author:By IGI
                                                  September 14, 2022
                                                  Williamson Pink Star
                                                  Photo credit: Sotheby's
                                                  News / Events / IGI Classroom / For Consumers / For Professionals

                                                  Sotheby’s Selling ‘Historic’ 11.15 carat Williamson Pink Star

                                                  The 11.15 carat Williamson Pink Star is the second largest internally flawless fancy vivid pink diamond to appear at auction. The cushion cut diamond, estimated at $21 million, will be sold in a single-lot auction in Hong Kong on October 5.

                                                  Post Author:By Angi Butler
                                                  September 8, 2022
                                                  • 1
                                                  • 2
                                                  • 3
                                                  • 4
                                                  • …
                                                  • 8
                                                  • Go to the next page

                                                  Subscribe Here

                                                  Loading

                                                  Categories

                                                  • News
                                                  • Events
                                                  • Opinion
                                                  • IGI Classroom
                                                  • For Consumers
                                                  • For Professionals
                                                  • Behind the scenes
                                                  • All posts

                                                  Latest posts

                                                  • Adieu Gabi ~ Our Diamond World Loses A Giant
                                                  • IGI Certifies Historic 50.25 carat Lab Grown Diamond
                                                  • IGI Certifies 35.00 carat Lab Grown Diamond
                                                  • Join IGI at JCK Las Vegas – Daily Schedule
                                                  • World Diamond Council Elects First Woman President
                                                  International Gemological Institute - IGI Logo
                                                  IGI's supreme position in the gemological world is no coincidence. It is the result of continuous research, support and synergy with professionals and consumers alike.

                                                  ABOUT US

                                                  About IGI
                                                  Press Room
                                                  Timeline
                                                  Affiliations
                                                  Importance of Certification

                                                  REPORTS

                                                  Our Expertise
                                                  How to Read a Report
                                                  Diamond Reports
                                                  Jewelry Report
                                                  Colored Stone Report
                                                  Screening Services
                                                  Sorting Services
                                                  Security Seal
                                                  Laserscribe
                                                  Verify Your Report

                                                  EDUCATION

                                                  Gemological Education
                                                  School Courses
                                                  Course Schedules
                                                  Tuition Fees
                                                  Enrollment Form
                                                  eLearning Courses
                                                  Enquiry Form
                                                  Gemstone Articles
                                                  Retail Support
                                                  Learn with Videos
                                                  Verify a Diploma

                                                  Other

                                                  Gemblog
                                                  Shows
                                                  Consumer Services
                                                  Contact Us

                                                  2020 © IGI Ltd. All rights reserved

                                                  Terms & Conditions  |  Privacy policy  |  Terms of use
                                                  Follow IGI
                                                  Powered by Tecogis

                                                  Stay in the loupe

                                                  IGI Newsletter

                                                  Get the latest industry stories and exclusive content to your mailbox

                                                  Subscribe now!

                                                  Your email is safe with us, we don't spam.