2010年11月3日星期三
Replica Bell & Ross Type Watches is actually harvested
As most people are aware that fresh water Replica Bell & Ross Type Watches are less expensive as compared to Akoya pearls but there are a number of people who prefer wearing Akoya pearl earrings and other jewelries made from this pearl. There are a number of reasons that differentiate freshwater pearls from Akoya pearls and one of the main differences is that it is fairly easy to cultivate freshwater pearl as compared to Akoya pearl. The process of nucleation is quiet different in the two cases as the process is quiet complex in case of Akoya pearls. The rate of nucleation with every single mollusk in fresh water pearl is much more equivalent to around 40 to 50 at single time. When cultivating Akoya pearl it has an efficiency to produce around 4 to 5 times and in most cases this is not done as the quality of the pearl is also affected along with increasing the mortality rate.Quality is one of the reasons why Akoya pearls are nucleated only once and this is also the reason why Akoya pearl earrings and other Replica Bell & Ross Type Watches made from this pearl are always more expensive. Akoya pearls are also termed as saltwater pearls and there certainly is less control over ocean water as compared to streams and ponds. One of the best parts of Akoya pearls is that they are always available in perfect round shapes. So if you are looking for a pearl that is round in shape then Akoya Pearl Earrings is always considered as a better option as compared to freshwater pearls. The reason these pearls are round in shape is that they are nucleated *** use of round beads that are originated from mussel shells from freshwater. They are not nucleated from flat tissues as most fresh water pearls generally are. As most fresh water pearls are pure nacre, but an Akoya pearl is made up of core of bead and has a very thin layer of nacre that is around 1mm in thickness. So if you are looking forward to purchase Akoya Pearl Earrings then you certainly have to take care not to get it damaged as they are very much delicate as compared to fresh water pearls. The freshwater pearl is generally allowed to nucleate for a longer period of time so it develops a tough solid coating, but Akoya pearl is only allowed to develop nacre for limited period of time and is nucleated using certain size of shell. The process of nucleation is done before the pearl is actually harvested. The time period for harvesting is generally decided by the cultivator, according to the Replica Bell & Ross Type Watches.