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The Wide World of Pearls, Our 129th Issue: How Does a Pearl's Size Effect Its Price?

 

Pearls of Joy Pearl Quote of the Week: "A legend grows around a grain of truth, like a pearl." -  Peter S. Beagle

 

 

Eye Candy

 

Weekly Eye Candy Spotlight: Model with Tahitian Pearl Necklace

 

WE LOVE TAHITIAN PEARLS!

We had some time to play with and admire one of our Tahitian pearl necklaces, totally saturated with Peacock and Green overtones at a recent photoshoot. Fun!

 

 

You Asked ...

Every day we receive questions from customers all over the world about pearls. We decided to post our answers here for every one to read!

 

How Does a Pearl's Size Effect Its Price?

 

Pearl Sizes versus Prices

 

We Answer:

Simply put: the larger the pearl is (all other factors being equal), the more expensive it will be. A pearl's size is one of the most significant factors influencing its price, because larger pearls are rarer and more difficult to farm than smaller pearls. 

The size of the pearl depends on factors such as the species of oyster, the size of the mother of pearl bead nucleus, and the length of time the oyster spends in the water growing the pearl. South Sea and Tahitian pearls are overall larger pearl types than that of the Japanese Akoya or Chinese Freshwater pearls. 

Larger pearls like South Sea and Tahitian pearls require longer cultivation times inside their host oyster. This increases the risk of mortality through dangers like algae blooms, for instance the infamous Red Tide, which can wipe out entire oyster populations in just days. Predators and parasites are constantly attacking the oysters while they are growing their pearls inside, and require cleaning and diligence during their time in the water.

With every oyster that dies, it reduces the number of viable pearls harvested. As a result, larger pearls are significantly less common, making them more valuable in the pearl market.

 

Pearl Sizes and Prices: Tahitian and Akoya Pearls

 

This rarity factor for larger pearls drives up their price due to the basic principle of supply and demand.

While small to medium-sized pearls are more plentiful and easier to produce - the astonishing volume of cultured Freshwater pearls in sizes ranging from 3.0-10.0mm absolutely dwarfs that of any other pearl type! - cultured pearls that exceed certain size thresholds—like the 9.5-10.0mm or higher in the case of Akoya pearls— or 13.0-16.0mm or larger for South Sea pearls are much less frequently found during harvests, and are prized by farmers and pearl lovers alike for their large, coveted sizes. 

Their unique sizes induces collectors and buyers alike to place a premium on these pearls.

 

Akoya Pearl Necklace Sizes Chart

 

Exponential Pricing Increases

For Akoya and Freshwater pearl necklaces, earrings or pendants, prices will be in the lower to moderate range - $100-$1,000 is the median depending on the jewelry type - in sizes 3.0-8.0mm. 

Once the pearls reach over the 7.5mm size range, expect to see prices increase by 25%, and then go exponentially higher with each millimeter increase in size. 


Pearl Earrings Size and Price Ranges
Lustrous and beautifully matched Freshwater pearl pairs

Matched Pairs / Earring Pricing

For example, our 7.0-7.5mm Akoya pearl studs will start at $284 today, but 8.0-8.5mm size is $375 for the same quality. A 30% increase approximately.
 
These pricing increases are 10xs that for the larger pearl types like South Sea and Tahitian pearls. 

For example, a pair of 8.0-9.0mm Tahitian studs will run $510 for the pair, but the 9.0-10.0mm size is $600 and the 11.0mm size will be about $750 ... a nearly $200 increase for 2.0mm size increase.  


Pearl Sizes and Pricing Issues: South Sea Pearls

Pearl Necklace Pricing

The same holds true for pearl necklaces: smaller strands will be moderately priced, with each millimeter increase in size costing 25-100% more depending on the pearl type. 
 
Example: an Akoya pearl necklace measuring 7.0-7.5mm will run about $1200-$2,000 depending on the pearl quality. Just a half-millimeter increase in size to 7.5-8.0mm the same pearls will cost $1,450 to $2,400-ish, and the 8.0-8.5mm size will average $2,100 to $3,050! That 1-millimeter increase from the 7.5mm size to the 8.5mm size is 75%. 
 
This is because the 8.5mm Akoya pearl size is much harder to cultivate: they need oysters capable of handling the larger bead nucleus. The oysters need to spend longer in the water creating a pearl with thick, lustrous nacre layers, increasing the risk to the farmer. 
 
For pearl types like South Sea pearls, this exponential price increase gets even more intense. A moderately sized 9.0-11.0mm strand of perfectly round South Sea pearls will average $10-13,000.00 depending on the quality, whereas necklaces running from 10.0-13.0mm will start at $18-24,000.00 (again depending on the pearl quality). That's anywhere from 54-85% increase for 1-2 millimeters in pearl size.  

But if you jump in size from 9.0-11.0mm up to the very luxurious 12.0-14.0mm or 13.0-16.0mm, then we enter serious spending territory, ranging from $35,000 to $60,000, which represents a pricing increase of 250% to 360%! 


Pearl Sizes and Pricing Issues: White South Sea Pearls

Why It's Worth It

These pricing increases might sound extreme, but it's important to understand that for some pearl types like Tahitian and South Sea pearls, it can take YEARS to carefully construct a matching layout of pearls. 

With each pearl harvest, exceptional pearls are set aside and pearl sorters examine each pearl for body color, overtone, luster (brightness, reflectivity and depth), surface quality and yes, SIZE, to see if they will hopefully match into a necklace under construction. 

When we consider the rarity of these larger pearls - a farmer may get just a few with each harvest, as the smaller pearls are less expensive to buyers, and easier to produce - then the creation of a luxuriously large pearl necklace ranging up to 16.0mm in size becomes difficult, time consuming, and yes, even a bit dangerous for the farmer to produce! His livelihood and that of all his employees on the farm are dependent upon successful pearl harvests. What a gamble, eh? 

 

White South Sea Pearl and Diamond Eternity Pendant 

 

In addition to rarity, the size of a pearl impacts its aesthetic value and overall impression, contributing to its appeal. Larger pearls tend to have a more striking presence and are often used as statement pieces in luxury jewelry. 

Their greater surface area allows for a more prominent display of luster, overtones, and other qualities that define a pearl’s beauty. This makes larger pearls particularly sought after for high-end designs, further elevating their market value compared to smaller counterparts.

The way history and culture have shaped pearl prices is a very interesting subject - there were times when pearls were restricted only to royalty, and times when pearls were a popular craze sought after by entire nations. Large, lustrous pearls have always been viewed as a sign of being rich and powerful, as with royal jewels, or a celebrity sporting a dazzling pearl and diamond couture design on the red carpet. 

These luxurious vibes stick around today. Because of this, the larger pearls are always in high demand, and their prices will remain high. When you mix in how rare they are, how pretty they look, and how risky they are to grow, it’s easy to see why large pearls are such a big deal in the jewelry world.

 

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Featured Pearls

 Weekly Product Spotlight: White South Sea Pearl & Diamond Aristocrat Stud Earrings

 

 

White South Sea Pearl & Diamond Aristocrat Earrings


These exquisite pearl earrings add a touch of elegance to any occasion. These earrings feature two lustrous 11.0-12.0mm or 12.0-13.0mm, AAA to AAAA quality White South Sea pearls, hand picked for their gorgeous luster and unblemished surfaces. The pearls are mountings on 14K white gold.

View more stunning pearl earrings and South Sea pearls to compliment these pearls.

 

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