- 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
Deleuse Services and InformationDeleuse Jewelers 55 Broadway, Fairfax, Ca 94930 Jeff Deleuse, Graduate Gemologist & Certified GIA Appraiser American Gem Society and Amer...
One of the Finest and Rarest Natural Grey Pearl Necklaces KnownImage credit: Sotheby's Sotheby's Hong Kong to offer The Cowdray Pearls - one of the finest & ra...
Victor Mayer, the "Official Workmaster of Faberge"Victor Mayer's family history in fine jewelry enameling fabrication with Faberge dates back to St. Petersburg, Russia 1895. ...
Janet DeleuseFine Jewelry Designer Janet Deleuse began working in the family jewelry business following her...
Gold, "Glowing Dawn"Gold is a rare metallic element with the chemical symbol, AU, for the Latin word "Aurum", meaning Glowing Dawn. All our jewelry is made from pure ...
“Janet, thank-you for everything you do. As I said before, you are truly an artist, and that is why it is so special buying jewelry from you.” Peter, Atlanta, GA
” Beauty, exquisite design, pleasant and personalized attention. These qualities have been constant in our 20 years of shopping with Janet and Jeff Deleuse – Two exceptionally talented and caring people. The Best!’ Helen P.,Belvedere
"This store has a very pleasant environment and Jeff and Janet are both kind, wonderful people. I used Jeff a few times for appraisals and he was very thorough and was happy to answer lots of questions. He uses scientific methods and tests rather than going solely by appearance as some jewelers will try to do, and his expertise is well respected. On one occasion, he even went out of his way to help expedite a deal for me. He has my highest recommendation. Suzanne T., San Rafael, CA
“Jeff is an incredible gemologist who knows everything there is to know about gem stones. He is a true professional and can be trusted. The quality of their work is impeccible and always consistent. I would recommend Deleuse Jewelers to anyone looking for a new, “bauble,” for themselves or someone special!” Terri B., Ross
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"I purchased this beautiful chain from Janet Deleuse about 3 weeks ago. It was an online purchase so I was hoping I would be pleased. It exceeded my expectations as it was exactly as pictured. Delicate and perfectly crafted. Packing was very secure and shipping was quick. I would not hesitate to purchase from Deleuse again! Michele, New Jersey
“Janet and Jeff designed and crafted our wedding rings and did a great job. They worked with existing diamonds we had in an antique ruby cocktail ring, added the sapphire stone and made a beautiful pendant with the ruby. In addition, they designed earrings for our daughters. All are still in great shape today. They are easy to work with and very reliable and trustworthy.” Peg M., San Anselmo
Accreditation includes diplomas from the Gemological Institute of America and the American Gem Society and thirty years of experience.
All gold jewelry is fine quality 14k, 18k or 22k. Made in Italy, Germany and the USA.Gold →