The entrepreneur and “Shark Tank” star will share his top tips for success.
Joanna Hardy Completes Gemstone Trilogy with ‘Sapphire’ Book
It’s the follow-up to “Emerald” and “Ruby.”

Published by Thames & Hudson, in association with Violette Editions in partnership with Gemfields, “Sapphire: A Celebration of Color” by Joanna Hardy completes the fine jewelry expert and author’s trilogy of gemstone books.
“Emerald” was published in 2013 and “Ruby” in 2017.
Hardy’s 30-plus year career spans many facets of the jewelry industry.
The British author started out as a goldsmith, then joined De Beers as a rough diamond valuer. She moved into the auction world when she started at Phillips in London.
She is best known for her 14-year tenure at Sotheby’s, where she was the senior jewelry specialist and auctioneer, responsible for the jewelry auctions in New York, Geneva, and London.

In the introduction to “Sapphire” she writes: “Over the past 10 years I have travelled the globe researching for ‘Emerald,’ ‘Ruby,’ and ‘Sapphire,’ and it has been a journey I would not have missed. I see this trilogy as a global team effort, and I count myself incredibly lucky to have met people who have shared their stories with me and to have worked with the ever-helpful world brands, auction houses, cutters, miners, goldsmiths, designers and historians who have generously shared their knowledge with me.
“I am often asked what my favorite stone is, and my reply has always been I love the best of any gemstone; but, since writing this book, I think my heart has been won by the sapphire of many colors.”
As with her previous books, Hardy explores the sapphire through several lenses.
She begins by delving into early sapphire trading that brought the stone found in Sri Lanka, Myanmar, Cambodia, Thailand, Vietnam, Ethiopia, and France (and more locations like Montana and Madagascar since) worldwide, sharing images of ancient and antique jewelry styles featuring the stone.
Moving through history, Hardy notes sapphire’s notable moments, across cultures and continents, like carved sapphire cameos and even statues, originating from Asia and Europe.

An entire chapter is dedicated to sapphires in royal jewelry, featured in a number of crowns for European royalty, as well as jewelry worn by members of their respective courts.
The extensive accounting of important royal sapphires spans to modern monarchs, like Queen Elizabeth II, and even the blue sapphire engagement ring Prince Charles gave to the late Princess Diana that their son, Prince William the Duke of Cambridge, subsequently gave to his wife, the Duchess of Cambridge.
“Sapphire” also explores some of the most enduring jewelry designers to have worked with the stone, particularly in the 20th century, like Louis Comfort Tiffany, Jacques Cartier, and other members of the Cartier family.
Jewelry houses like Boucheron and Van Cleef & Arpels and some of their most spectacular pieces are also highlighted.
Other makers such as Suzanne Belperron and Oscar Heyman are highlighted in this wide-sweeping account that reads like a “best of” dedicated to the namesake gemstone.

One chapter even highlights the art of collecting, delving into the psyche of collectors who experience the sapphire’s “gravitational pull,” Hardy writes, naming some and leaving others anonymous.
A chapter on 21st century design explores some of contemporary jewelry’s greatest makers, from Hemmerle, Mish Fine Jewellery, Bina Goenka, Silvia Furmanovich, Mellerio, and current pieces from Cartier and Chaumet.
“Sapphire” will present something new to even the most seasoned colored gemstone afficionado.
It will be available through booksellers like Amazon on Nov. 9.
The Latest

The Ukrainian brand’s new pendant is modeled after a traditional paska, a pastry often baked for Easter in Eastern European cultures.

The jeweler has announced a grand reopening for its recently remodeled location in Peoria, Illinois.

The “Strong Like Mom” campaign features moms who work at Tiffany & Co. and their children.


Interior designer Athena Calderone looked to decor from the 1920s and 1930s when crafting her first fine jewelry collection.

During a call about its full-year results, CEO Efraim Grinberg discussed how the company is approaching the uncertainty surrounding tariffs.

Bench jewelers spend years honing their skills, Jewelers of America’s Certification validates their talents.

The free program provides educational content for jewelry salespeople and enthusiasts to learn or refresh their diamond knowledge.

The feedback will be used to prepare other jewelers for the challenges ahead, the organization said.

The online sessions are designed to teach jewelers to use AI tools like ChatGPT and Claude to grow their business.

The opening marks the jewelry retailer’s first location in the Midwest.

The “United in Love” collection offers tangible mementos of hearts entwined with traditional and non-traditional commitment heirlooms.

Robert Goodman Jewelers will hold a “Black Jewelry Designers and Makers” event on April 27.

The announcements follow a tumultuous start to 2025 for WJA, which saw a wave of resignations following controversial statements about DEI.

Editor-in-Chief Michelle Graff answers questions about how the new taxes levied on countries like India and China will impact the industry.

Kenewendo, Botswana’s minster of minerals and energy, discusses closing the deal with De Beers and the work that was missed along the way.

The historic fancy vivid blue diamond set to headline Christie’s Geneva sale next month could sell for up to $50 million.

LVMH CFO Cécile Cabanis also discussed the effects of tariffs so far.

The “Mad Men” and “The Morning Show” star steals jewelry, art, and handbags from his wealthy neighbors in “Your Friends & Neighbors.”

An investigation found that the former managing director of Movado’s Dubai branch overstated and prematurely recorded sales.

The collection pays tribute to the Japanese philosophy of Ma, studying balance, stillness, and the interplay between presence and absence.

Mari Lou’s Fine Jewelry in Orland Park, a suburb of Chicago, is closing its doors.

GIA’s labs in Dubai and Hong Kong are now accepting larger diamonds in light of the “logistical challenges” presented by the new tariffs.

These earrings by Van Cleef & Arpels, featuring the same design as a pair worn by Princess Grace, are up for auction at Woolley & Wallis.

Two experts share how artificial intelligence tools can help retailers run a more efficient business.

“America Telling Time: 150 Years of Bulova” explores the storied history of the American watchmaker.