Jewelry Blog

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Pearl necklaces come in several lengths. From the shortest to the longest, they are: collar (10”-13”), choker (14”-16”), princess (18”-20”), matinee (20”-24”), opera (28”-34”) and rope (37” and longer). The length of the pearl necklace will depend on the woman’s age, body composition and neck size, although an 18 to 24-inch pearl necklace is a good length for anyone. Generally speaking, the longer the necklace, the more it ‘elongates’ the neck.

The mark of “M”

Every jewelry created by Mikimoto including pearl necklaces, has an “M” stamped on its setting. This is a guarantee of quality. However, in some cases, the mark of “M” will only guarantee that the setting is genuine and not the pearls, which can be replaced and restrung.

A caveat: there is a black market for Mikimoto clasps, where original Mikimoto clasps are used for cheaper or imitation-quality pearls. Beware also of ‘closeout’ Mikimoto sales, even if they come in ‘new’ 18k gold.

The best way to distinguish a true high-quality Mikimoto pearl from other pearls is to look for a unique road map or line pattern on the surface of the pearls under a 10x magnifying lens. Experienced jewelers can recognize this. On your own, you will want to find genuine Mikimoto pearls to compare with your intended purchase. Once you see the difference, true Mikimoto pearls are easily recognizable.

You might also encounter pearl necklaces that are labeled ‘Mikimoto quality’. This is misleading. These are not pearls produced under the patented Mikimoto process. True Mikimoto pearl necklaces are those produced under stringent conditions in Ise in Honshu, Japan.

Akoya vs. Mikimoto

Another fine quality pearl is akoya pearls, although this is a general term used to refer to saltwater pearls. These are not Mikimoto pearls and they don’t cost the same.

Grading method

Mikimoto pearls are rated using four grades, with AAA being the highest. There are 4 sub-grades starting with AAA1. Highest-grade pearls are those with the best luster and reflective quality, almost mirror-like, while lower-grade pearls are those with reasonably clear reflection.

When buying your Mikimoto pearl necklace, be sure to ask for grading certificates. This is not only good for insurance, but it is also a guarantee that what you are paying for is a true Mikimoto pearl necklace.

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