- Pearls are the only jewels created by a living animal. A natural pearl of value is found in less than 1 in every 10,000 wild oysters.
- All pearl oysters are born male and transform into females at around three years of age.
- There are three major types of saltwater cultured pearls: Akoya, Tahitian and South Sea. These pearls account for approximately 5% of the total weight of global pearl production. Although they share many of the same characteristics, they can look vastly different as each pearl is sourced from a different species of oyster. These oceanic oysters typically grow only one pearl at a time.
- Freshwater pearls account for approximately 95% of total global pearl production but are much less valuable than saltwater pearls. China produces the overwhelming majority of freshwater pearls in pearl farms that may range from a farmer's fishpond to massive lakes filled with over a million mussels. A single freshwater mussel will typically produce between 30 and 50 pearls at a time.
- Even with cultivation practices, South Sea pearls are incredibly rare. By way of comparison, the weight of diamond production each year is about 10 times greater than the weight of the annual Australian South Sea pearls harvest.
- Pearl oysters are also used for their shell (known as mother-of-pearl) and their meat.
- The earliest record we have of pearls as precious objects are artefacts from Mesopotamia dated to around 2300 B.C.
- Recently, a two thousand year old pearl was found in an Australian Aboriginal archaeological dig in the Kimberley region of Western Australia.
- La Peregrina (Spanish for ‘the incomparable’) is one of the most famous pearls in the world. The 500-year-old pearl is pear shaped and the size of a large pigeon’s egg. Its previous owners included a King of Spain, Napoleon Bonaparte and Elizabeth Taylor.
- In the early days, pearl divers regularly faced the threat of shark attacks as well as the dreaded crippling effects of the bends with every dive. In the late 19th Century and early 20th Century, the mortality rate for divers was as high as 50 per cent. Today, there are strict protocols and regulations regarding occupational diving to reduce these risks.
- Link to National Geographic Site
"The Secret Life of Pearls" National Geographic
-
From the American Gem Trade Association ...."All About Citrines"
Citrine"Shining with a golden glow, people have long treasured citrine as a gift from the sun. Citrine, a variety of transparent quart... -
Jeff Deleuse, Graduate Gemologist and Certified Appraiser
Jeff Deleuse, Graduate Gemologist and Certified Appraiser from the Gemological Institute of America Specialist in Diamond Grading and... -
Conversations: Amy Roseveare visits Janet Deleuse
Although Janet has a background in molecular biology, it’s clear that jewelry is her passion. She generously spent time showing me her one-of-a-k... -
Getting Engaged? It's always the time for love.
There are many choices; vintage jewelry, diamond bands, gemstone rings or create a ring that is uniquely yours. Engagement Ring Collection Jeff De... -
Looking For Your Perfect Engagement Ring?
We will help you through the process of designing your special ring that you're dreaming about. We also offer one-off Janet Deleuse Designer rin... -
Janet Deleuse Couture and Fine Jewelry
“There’s a logic in it, but you cannot see it. The details are refined. The artist’s style is elegant non-conformism to stand out. Beyond every m... -
How to Choose and Care for Your Pearls
The luster of any pearl, whether natural or cultured, depends on the thickness of the nacre. If the nacre is thin, the pearl will look chalky an... -
Cartier at the Legion of Honor
"I had the honor of contributing to the audio tour for this exhibit. Here are some of my favorites." Janet Deleuse In celebration of one hund... -
Janet Deleuse Designer Jewels
Janet Deleuse designer jewels are created with fine gems in platinum and 18k gold. Each jewel is an exclusive one-off and made in the USA by our fa...
Featured collection
All gold jewelry is fine quality 14k, 18k or 22k. Made in Italy, Germany and the USA.
Gold →