Pearls_by_Angela_Carol
New Member
- Joined
- Oct 18, 2005
- Messages
- 80
There has been a term floating around the forum that should be addressed. Since this is a forum that is intended to educate the consumer it is important to be accurate and not create terms based on personal bias that have inaccurate connotations. The term "pearl plated beads" is misleading and while maybe technically accurate, is a misrepresentation of cultured pearls.
Since we all know that perception leads to what most people view as fact, this needs to be addressed. The use of the term "pearl plated bead" brings an image of a hollow sphere of some material (glass, plastic, resin...) being "plated" by a material that is totally different than the base. The comparison was made to 14K gold plated jewelry. That is extremely inaccurate, as the gold is layered on artificially by man onto some type of base metal that is generally hollow.
The term "nacre" is used to define both the substance that is layered inside the shell of mollusks as well as the secretions that are layered on top of some "irritant" to form a pearl (natural or cultured). The composition of both pearls and "mother-of-pearl" is the same. It is calcium carbonate crystals composed of aragonite and conchiolin joined by different elastic biopolymers (giving it its strength).
Cultured pearls are started with a nucleus that is cut from mother-of-pearl mainly from mussels found in the Mississippi River Delta. This is the same material that was used through the early 1900's and up until World War II to make pearl buttons. This mother-of-pearl bead (or solid nacre bead) is then layered with the nacre produced by host.
So technically cultured pearls such as Akoya are 100% nacre, just not from the same host and the nacre of the bead nuclei is in a different orientation than the nacre covering it.
The aragonite crystals in the mother-of-pearl bead are arranged in parallel layers (because of cutting the bead from the shell) and the nacre that is layered on top of that to form the pearl is deposited in a concentric-radial fashion.
"Pearl Plated Beads" should actually refer to "fake" or imitation pearls where nacre is ground (and may be combined with fish scales) and then artificially layered on top of a plastic or glass bead.
It should also be noted that the only pearls on the market today that are not mother-of-pearl nucleated are Freshwater pearls. However, the overabundance of medium and low quality makes the average cultured freshwater strand much less desirable than their mother-of-pearl nucleated counterparts.
Calling mother-of-pearl nucleated pearls 'pearl plated beads', I feel is an insult to the Akoya, Tahitian, and South Sea pearl industry. Pearl for pearl each (Akoya, Tahitian and South Sea) is much, much more valuable than tissue nucleated freshwater, and on average, aesthetically more pleasing. After all, isn't that not most important? Yes, Akoya typically have the thinnest nacre, but they are also the smallest on average and nacre deposits much more slowly.
Cultured pearls have been accepted now for nearly 100 years by every country (other than Bahrain) and the industry as a whole. Can any of you honestly say that unless you are comparing freshwaters of the 1 in a million quality, like the "Hanadama quality" Freshwater pearls now carried by Jeremy Shepherd from Pearl Paradise, that customers would choose them over a nice South Sea strand or a brilliant Akoya?
It has been mentioned that 300 million emperors can be wrong, but if they all lean one direction there must be a reason. Mother-of-pearl nucleated pearls almost always look better, show better, and are more valuable than their mantle-tissue nucleated counterparts. This is why they are still greatly favored overall.
Since we all know that perception leads to what most people view as fact, this needs to be addressed. The use of the term "pearl plated bead" brings an image of a hollow sphere of some material (glass, plastic, resin...) being "plated" by a material that is totally different than the base. The comparison was made to 14K gold plated jewelry. That is extremely inaccurate, as the gold is layered on artificially by man onto some type of base metal that is generally hollow.
The term "nacre" is used to define both the substance that is layered inside the shell of mollusks as well as the secretions that are layered on top of some "irritant" to form a pearl (natural or cultured). The composition of both pearls and "mother-of-pearl" is the same. It is calcium carbonate crystals composed of aragonite and conchiolin joined by different elastic biopolymers (giving it its strength).
Cultured pearls are started with a nucleus that is cut from mother-of-pearl mainly from mussels found in the Mississippi River Delta. This is the same material that was used through the early 1900's and up until World War II to make pearl buttons. This mother-of-pearl bead (or solid nacre bead) is then layered with the nacre produced by host.
So technically cultured pearls such as Akoya are 100% nacre, just not from the same host and the nacre of the bead nuclei is in a different orientation than the nacre covering it.
The aragonite crystals in the mother-of-pearl bead are arranged in parallel layers (because of cutting the bead from the shell) and the nacre that is layered on top of that to form the pearl is deposited in a concentric-radial fashion.
"Pearl Plated Beads" should actually refer to "fake" or imitation pearls where nacre is ground (and may be combined with fish scales) and then artificially layered on top of a plastic or glass bead.
It should also be noted that the only pearls on the market today that are not mother-of-pearl nucleated are Freshwater pearls. However, the overabundance of medium and low quality makes the average cultured freshwater strand much less desirable than their mother-of-pearl nucleated counterparts.
Calling mother-of-pearl nucleated pearls 'pearl plated beads', I feel is an insult to the Akoya, Tahitian, and South Sea pearl industry. Pearl for pearl each (Akoya, Tahitian and South Sea) is much, much more valuable than tissue nucleated freshwater, and on average, aesthetically more pleasing. After all, isn't that not most important? Yes, Akoya typically have the thinnest nacre, but they are also the smallest on average and nacre deposits much more slowly.
Cultured pearls have been accepted now for nearly 100 years by every country (other than Bahrain) and the industry as a whole. Can any of you honestly say that unless you are comparing freshwaters of the 1 in a million quality, like the "Hanadama quality" Freshwater pearls now carried by Jeremy Shepherd from Pearl Paradise, that customers would choose them over a nice South Sea strand or a brilliant Akoya?
It has been mentioned that 300 million emperors can be wrong, but if they all lean one direction there must be a reason. Mother-of-pearl nucleated pearls almost always look better, show better, and are more valuable than their mantle-tissue nucleated counterparts. This is why they are still greatly favored overall.