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  • A review: The History of Pearls in the Gulf of California, Mexico Part 3

    A review: The History of Pearls in the Gulf of California, Mexico Part 3

    THE FIRST COMMERCIAL PEARL OYSTER FARM IN THE WORLD

    It is at this particular crossroad that we find a Mexican-French Medical Doctor by the name of Gastón Vivès, attempting what very none had tried before: initiate a commercially viable, large-scale pearl oyster farm to produce shell and pearls. The Vivès family owned a pearl fishing armada in La Paz, Baja California Sur, and they were experiencing diminishing profits every year, thus wanting to revert this trend we find Gastón Vivès...
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  • A review: The History of Pearls in the Gulf of California, Mexico PART 2

    The arrival of the Iberian Conquerors

    The Native Nations had no real interest in establishing a commercial venture in pearl fishing and we understand little to nothing of the way they fished for pearls, since most of the information was either lost or destroyed during the conquest of Mexico. The rich plunder of the Conquistadores was sent to Spain and later dispersed all over Europe. The most significant information we have on the subject comes from the period of colonization of northwestern...
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  • A review: The History of Pearls in the Gulf of California, Mexico - PART 1

    A review: The History of Pearls in the Gulf of California, Mexico
    By Douglas McLaurin-Moreno


    Since unrecorded time, man has obtained many bounties from the world’s oceans: food, shells, corals, sponges, seaweeds, and the most desirable of all of these were the beautiful mother-pf-pearl shells and their valuable treasure, Pearls.

    Mexico has four species of pearl oysters inhabiting its coasts, two -the larger sized- on the Pacific side: the Panamic Black Lip...
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  • Debunking a Widely Held Japanese Myth

    By C. Denis George Abstract by Anna Kerrig

    Historical Aspects on the Early Discovery of the Pearl Cultivating Technique Japanese scientists, Nishikawa and Mise are typically recognized for discovering the technology that led to cultivating spherical pearls. C. Denis George was an Australian enthusiast who challenged the credit given to the Japanese for this discovery. George argues that Nishikawa and Mise's step-father were first exposed to successful pearl cultivation at Thursday...
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    Last edited by CortezPearls; 04-05-2021, 07:26 PM. Reason: Edited spaces and added link to text

  • Natural Pearls

    Natural Pearls Defined

    Natural pearls are calcium carbonate secretions which form within mollusks without human intervention.



    Natural Pearls - Accidents of Nature Natural pearls are formed randomly and really are simple accidents of nature. When a certain type of irritant, such as a parasite, becomes lodged in the tissue of a mollusk, the animal responds by secreting a calcium carbonate substance called nacre to coat the intruder and protect the mollusk...
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    Last edited by CortezPearls; 03-23-2021, 05:42 PM. Reason: Improving text & adding images

  • Saltwater Pearls

    Saltwater Pearls Defined

    A saltwater pearl is a calcium concretion (can be nacreous or non-nacreous) produced by a saltwater mollusk that lives in a saline/marine environment. These pearls can be either natural (no human intervention in its production and a product of a fishing operation) or cultured (produced with human intervention by means of pearl farming).


    Natural Saltwater Pearls Traditionally, most pearls were fished from saltwater-dwelling mollusks in the Pers...
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    Last edited by CortezPearls; 03-23-2021, 06:22 PM. Reason: Improved the article

  • Pearl Quality

    Measuring Pearl Quality

    Pearl quality and thus, the value of a pearl is measured according to a combination of several varied factors are: the type of pearl, the thickness of its nacre, its luster, the cleanliness and texture of its surface, its shape, its color, and its size. Because the pearl is a naturally occurring organic gemstone, created by living creatures, these factors can and do vary widely. Although all of them affect the ultimate value of a given pearl, some of the facto...
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    Last edited by CortezPearls; 03-24-2021, 12:20 AM.

  • Pearl Sizes

    Pearl Sizes

    Pearl Size Is Measured in Millimeters

    A pearl's size is measured according to its diameter in millimeters. Sizes range from 1 millimeter or less, in the case of very tiny pearls, to as much as 20 millimeters (more than 3/4") for large South Sea pearls.

    The Average Pearl Size Today is 7 Millimeters Most pearls sold today, however, are in the 7.0 to 7.5-millimeter range. Akoya pearls greater than 8 millimeters are considered extremely rare. (The largest pearl an akoya oy...
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    Last edited by CortezPearls; 03-15-2021, 02:58 PM.

  • Pearl Shapes

    Pearl Shapes Vary Widely

    Because pearls are natural organic gems created by a myriad of living organisms, they occur in a wide variety of shapes, many of which are quite unique and interesting. Also, cultured pearls tend to be rounder than natural pearls because (saltwater) cultured pearls usually have a bead inside that will help guide the shape.

    Some shapes are distinctively unique to certain species of mollusks, as is the case in Abalones (Haliotis spp) that commonly...
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    Last edited by CortezPearls; 03-26-2021, 04:30 PM. Reason: Edited text and added images

  • Pearl Surface

    Pearl Surface in Pearl Grading

    The surface cleanliness of a cultured or natural pearl has a direct correlation to its value. A pearl can never, according to rules set forth by the FTC, be graded as "flawless", but the degree or percentage of inclusions or surface imperfections can be measured by anyone with experience.

    What to Look for on a Pearl's Surface When grading pearls, the appearance of the surface of a pearl is one of the most important characteristics in determin...
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    Last edited by CortezPearls; 03-26-2021, 03:52 PM. Reason: Edited text and added images
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  • A review: The History of Pearls in the Gulf of California, Mexico Part 3
    by CortezPearls
    THE FIRST COMMERCIAL PEARL OYSTER FARM IN THE WORLD

    It is at this particular crossroad that we find a Mexican-French Medical Doctor by the name of Gastón Vivès, attempting what very none had tried before: initiate a commercially viable, large-scale pearl oyster farm to produce shell and pearls. The Vivès family owned a pearl fishing armada in La Paz, Baja California Sur, and they were experiencing diminishing profits every year, thus wanting to revert this trend we find Gastón Vivès...
    05-08-2021, 05:20 PM
  • A review: The History of Pearls in the Gulf of California, Mexico PART 2
    by CortezPearls
    The arrival of the Iberian Conquerors

    The Native Nations had no real interest in establishing a commercial venture in pearl fishing and we understand little to nothing of the way they fished for pearls, since most of the information was either lost or destroyed during the conquest of Mexico. The rich plunder of the Conquistadores was sent to Spain and later dispersed all over Europe. The most significant information we have on the subject comes from the period of colonization of northwestern...
    04-05-2021, 03:26 PM
  • A review: The History of Pearls in the Gulf of California, Mexico - PART 1
    by CortezPearls
    A review: The History of Pearls in the Gulf of California, Mexico
    By Douglas McLaurin-Moreno


    Since unrecorded time, man has obtained many bounties from the world’s oceans: food, shells, corals, sponges, seaweeds, and the most desirable of all of these were the beautiful mother-pf-pearl shells and their valuable treasure, Pearls.

    Mexico has four species of pearl oysters inhabiting its coasts, two -the larger sized- on the Pacific side: the Panamic Black Lip...
    03-18-2021, 03:04 PM
  • About Pearl-Guide.com
    by Kevin Canning
    More than 10,000 Members Strong
    Founded in 2003 with the addition of a community forum in 2004, Pearl-Guide.com is a friendly group of pearl dealers, farmers, traders, wholesalers, hobbyists, authors, and consumers. With members from around the world engaged in daily conversation, Pearl-Guide.com is the largest community of pearl enthusiasts in the world.

    World's Only Open Pearl Discussion Forum Pearl-Guide.com exists for the benefit of consumers and the trade. With the world...
    07-24-2014, 07:33 PM
  • The French Blue
    by WayneCMS
    By Richard Wise I was fortunate enough to get an early Kindle edition of Richard Wise's newest masterpiece The French Blue. I also own a copy of Wise's Secrets of the Gem Trade, and it is one of the very few gem books that I've read cover to cover, not just skipping ahead to the sections about pearls. The French Blue is a completely different kind of work. It is a novel that begs to be read slowly, but once one becomes entranced in the story, it is nearly impossible to put down. Not for the f...
    07-21-2014, 10:36 AM
  • Pearl-Guide.com Forum Policies and Rules of Conduct
    by WayneCMS
    Pearl-Guide.com, its owners, moderators and administrators reserve the right to:
    • Remove or move any content for any reason at our sole discretion
    • Modify or edit any content for any reason at our sole discretion
    • Suspend or ban any members for any reason at our sole discretion
    Use of Pearl-Guide.com will constitute acceptance of the following policies and rules of conduct. These policies and rules of conduct may change periodically. The forum on Pearl-Guide.com is presented "as is" with no w...
    07-21-2014, 10:31 AM
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