| Hong Kong Jewellery 香港珠寶
News & Highlight


  1. Q1 Gold Jewellery Demand Soft, Says WGC
  2. Jewellery Buying Groups Formed New Global Alliance
  3. Singapore to Host Jewellery & Gem World 2022
  4. ‘Wonder Woman’ Gal Gadot Premiered in Tiffany’s 2022 High Jewellery Collection
  5. Christie’s to Auction ‘The Light of Africa’ for $18M in June
  6. New Board of Directors were elected to Jewellery Exporters Association of Turkey
  7. Oroarezzo back with Première Competition
  8. ‘De Beers Blue’ auctions US$57.5M at Sotheby’s
  9. CTF launches Mother’s Day collection
  10. Jewelers of America Announces The 2022 CASE Award Winners
  11. De Beers: Diamond Businesses Staying Cautious About Business Expectations
  12. Synthetic Alexandrite Pioneer David Patterson Dies at 89
  14. Rebecca Foerster Appointed As President of Hearts On Fire
  15. US Steps Up Sanctions Against Alrosa
  16. PGI Study Findings: Consumers Have Different Interpretations of Sustainability
  17. Irving Wong Appointed as Pandora’s General Manager For China
  18. Rolex’s 6 New Watches Unveiled at Watches & Wonders Geneva
  19. Sixième Sens par Cartier High Jewellery: Heteractis Ring
  20. Will Russian Diamond Ban Help Foster Lab-Grown Diamond Business?
  21. Press Release: Ariana DeBose, Hunter Schafer and Zoey Deutch Shine in De Beers Jewellers at the Vani
  22. Press Release: Ariana DeBose, Hunter Schafer and Zoey Deutch Shine in De Beers Jewellers at the Vani
  23. JEWELLERY GENEVA Takes Place between 30 March and 3 April 2022
  24. Christie’s Presents 228 carat White Dimond
  25. Gold Bar Integrity Programme to be Implemented
  27. Early Spring Fashion for Natural Diamonds
  28. Jennifer Garner Shines in De Beers Jewellers at the Premiere in New York
  29. To celebrate its 15th anniversary, “Cartier Women’s Initiative Impact Report”
  30. American Gem Trade Association Announces Partnership with JCK Show Again
  31. Chow Tai Fook and Canada's Mountain Province Diamonds Sign Supply Agreement
  32. Registration Is Open for 2022 JCK Show
  33. Alrosa Caught Up in U.S. Sanctions
  34. Tawhid Abdullah Receives Lifetime Achievement Award
  35. The Largest Blue Diamond Appears at Sotheby’s Auction
  36. Price Rise for Nearly 90% Of Fancy Colour Last Year
  37. Dickson Yewn’s Collectibles Given for Sotheby’s Charity Auction
  38. De Beers Boosts Production
  39. Watches & Wonders Geneva To Be Held In Hybrid Format
  40. Jewellery, Gem & Technology Dubai to Debut February
  41. Hong Kong Losing its Dominance as the World's Largest Watch Market
  42. Gift Guide for CNY
  43. Press Release: Sotheby’s Announces New Appointments To Luxury Team In ASsia
  44. Georg Jensen Becomes a Certified Member of RJC
  45. 555.55-carat Black Dimond Unveiled at Sotheby’s Auction
  46. GIA Appoints Anna Martin as SVP for Institute, Industry Relations
  47. Alrosa Boosts Direct Sales of Fancy Diamonds to Investors
  48. CIBJO General Assembly postponed to March 17 and 18, 2022
  49. 7,525 Carat Emerald Discovered
  50. Karl Lagerfeld Jewellery Collections to Shine
  51. Diamonds Travel To The Space
  52. Vicenzaoro January postponed to March
  53. America’s Youngest Jeweller Starts Business via Instagram
  54. Concerns over conflict gold arise again
  55. The 1st International Gemstone & Diamond Trade Summit Wraps Up in Macao
  56. The Knot’s Study:Over 30% of Respondents Say Natural Diamond Unimportant
  57. Pantone’s 2022 Colour of the Year: Very Peri
  58. Phillips Jewellery Auctions Fetch over HK$181 Million
  59. The World’s First Pure Gold Castle of Magical Dreams by CHOW TAI FOOK
  60. Jewellery Sales Jumped 78% During the Thanksgiving Holiday
  61. Gem Auctions DMCC’s Debut Auction Successful
  62. Cartier’s Christmas Tree Lights Up the City with Love and Hope
  63. Rediscovering Lacloche in Hong Kong
  64. Blue diamonds to lead Christie’s HK autumn sale
  65. JMA show to stage next Thursday
  66. HK auction to help Cambodian kids
  67. Basel fair cancelled again
  68. HKDI show to continue in Dec
  69. Gemfields sells 7,500-carat emerald for good
  70. Sustainability is key to diamond purchases, a report says
  71. Christie’s Geneva jewellery sale fetches CHF53.7m
  72. Cibjo forms working group on fei cui standards
  73. Only Watch raises CHF30m for DMD research


  1. US market unfolds changes and potential
  2. The queen of gems, the gem of queens
  3. Classics return


  • Sample of the new GIA Cultured Pearl Classification Report
  • GIA holds an educational seminar on pearls earlier in Hong Kong.

GIA launches new pearl report

September 2021


The Gemological Institute of America (GIA) has recently launched a new pearl classification report, offering customers a cost-effective option for determining the value of untreated cultured pearls based on the in-house pearl value factors.


The new Cultured Pearl Classification Report is an abbreviated report including detailed classification information on unmodified cultured pearls (exclusively for akoya, South Sea and Tahitian pearls) based on the GIA 7 Pearl Value FactorsTM and a digital image of the submitted item(s).


GIA 7 Pearl Value FactorsTM


Built on 70 years of pioneering research on pearls, GIA 7 Pearl Value FactorsTM provides a systematic way to evaluate cultured pearls by seven factors – colour, size, nacre, lustre, surface, matching and shape.


1. Size: Stated in millimetres, to two decimal places.

2. Shape: Described as round, near-round, oval, button, drop, semi-baroque or baroque. Pearls not falling into these groupings are described as they appear.

3. Colour: A combination of the pearl’s dominant body colour, overtone, and orient.

4. Lustre: The light reflected from or near the pearl’s surface, evaluated by the intensity and the sharpness of reflection.

5. Surface: Blemishes or irregularities confined to the pearl’s surface, taking into account the size, number, nature, location, visibility, and type of surface characteristics.

6. Nacre: Nacre quality is the condition of a pearl’s nacreous surface. Nacre quality is related to nacre layering during a pearl’s growth, and it affects lustre, surface, and durability.

7. Matching: The uniformity of appearance in strands and multiple pearl groups or items.


When it comes to the “matching” factor, will a pair of asymmetrical earrings be scored low due to the different appearance? “While matching may not be applicable in some cases, often it will apply to intentionally mismatched items. For example, a pair of earrings or a strand where everything matches except colour will be classified according to all of the other factors. The same can apply to differently shaped pearls where the other factors match,” GIA explains.


Aside from the said report, GIA also provides Pearl Identification Report and Pearl Identification and Classification Report for all types of pearls. “The new report saves the time and costs associated with identifying pearls that are known through the trade to be cultured,” GIA explains. For instance, the service fee for the first loose pearl submitted for the Cultured Pearl Classification Report and the Pearl Identification Report is HK$310 and HK$935 respectively. Click here for details. (Photo courtesy: GIA)



← Back