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Commitment to quality is the single-most distinguishing feature of the services we render our customers. All our pearls are hand-selected and carefully inspected for high luster, perfect shapes, blemish-free surfaces and genuine rich colors.
If you are not completely satisfied with your purchase for any reason, send it back to us for a 100% refund within 60 days.
Our business is based on direct purchases/productions from pearl farms stretching from South and East Asia to the South Pacific. Our farm-direct prices avoid middleman and save you up to 80% below retailing prices without sacrificing quality.
GoDaddy® and SafeBuy™ verification, along with secure online purchasing features and a reputation for distinctive quality and integrity are precisely what distinguish DawnRose Pearls in today’s current retail market.
Free UK next day delivery on all of your orders. International express delivery is also available.
Each of your purchases is presented in an elegant gift box to showcase your pearls, with a gift card printed with any personal message. Also included are an introduction card and microfiber cloth for pearl care. All for free.
Each of our products is issued with a Certificate of Authenticity, signed by one of our GIA certified pearl experts, which guarantees both the authenticity of the pearls you have received and specifications as to their quality.
   
Why Pearls?
The Birth of A Pearl
Pearl Types
    Freshwater Pearls
    Tahitian Pearls
    South Sea Pearls
    Akoya Pearls
Pearl Quality Grading
    An Overview of Pearl Grading Factors
    DawnRose Pearls Grading System
    Freshwater Pearl Grading System
    Tahitian Pearls Grading System
    South Sea Pearls Grading System
    Akoya Pearls Grading System
Pearl Industrial Processes
    Pearl Cultivation Procedures
    Industrial Processes of Harvested Pearls
Pearl Buying Guide
    How to choose pearl types
    How to choose pearl colours
    How to choose pearl necklaces
    Pearl size for different pearl types
    How to choose pearl size-pearl strand
    How to choose pearl size-pearl earrings
    How to choose pearl size-pearl pendant
Customer Bewares
    Genuine Pearl Colors
    Pay Attention to Pearl Shape
    Pearl Size
    Pearl Grading
    The Pearl Nacre Thickness
    Purchasing Pearls Online
    How to Recognize Imitation Pearls
    How to Care Your Pearls
Genuine Pearl Quality Guaranteed
60-Day 100% Money Back Return Policy
Up to 80% Saving
Confidence and Trust
    Privacy Policy
Free UK NEXT DAY delivery
Elegant Presentation
Certificate of Authenticity
About Us
    Customer Testimonials
Terms and Conditions
Contact Us
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Showroom of DawnRose Pearls
Industrial Processes of Harvested Pearls
 

Industrial Processes of Harvested Pearls

In the current pearl industry, most cultured pearls will, to some extent, experience post-harvesting processes before being sold. These processes include washing, buffing, polishing, sorting, drilling, bleaching and stringing. Honest and reputable pearl retailers should be fully upfront in disclosing these processes to their customers. 

 

10) Washing and buffing

Pearl_industry_process

All cultured pearls must be washed and dried soon after harvest to remove unwanted mucus or tissue clinging to pearl surfaces. The washing is often conducted in a rotated tumble where pearls are dipped in a concentrated salt solution.

Buffing is performed by mixing pearls with abrasive grains in a rotating canister or vibration polisher. The pearls are then cleaned and polished by mild abrasion or sometimes with the use of a waxy substance. The buffing process will remove some surface imperfections and also add a polished look to pearls.

 

11) Sorting

Pearl_industry_process

Pearls arrive in a processing factory in bulk and not yet sorted in regards to size and quality. Therefore, the first steps are to sort them by size, quality, colour and their intended usage in different types of jewellery. The sorting work  of thousands of pearls a day requires a staggering amount of labor. Processors first remove low quality pearls—those which are heavily spotted, have very thin nacre or are of undesired shapes. Sorting may take several steps, depending on the potential usage of the specific jewelry type. Uniformity is the goal when sorting pearl strands.  

 

12) Drilling

Pearl_industry_process

To combine sorted pearls with specific jewellery settings, they must usually be drilled. Full-drilled pearls, such as those strung in necklaces or bracelets, are drilled all the way through. Half-drilled pearls, such as those to be mounted on a post, are drilled halfway through. The technician must decide on the best drilling location and direction, the chief aim of which is to drill into the blemishes in order to maximize the amount of clean surface that will be visible.

 

 

 

13) Bleaching

Pearl_industry_process

Almost all Akoya and Freshwater pearls are bleached. Bleaching is done after drilling to allow for a deeper penetration of the bleach solution. Bleaching will usually whiten the conchiolin between nacre layers and improve the uniform appearance of cultured pearls. Akoya pearls are typically bleached using hydrogen peroxide combined with bright fluorescent light to improve lustre. South Sea and Tahitian pearls are not bleached.

 

 

 

14) Matching and stringing

Pearl_industry_process

Matching is the final step before the cultured pearls are ready to be marketed, as pearls with different levels of quality will to be priced differently. Full-drilled pearls are matched uniformly in size, luster, shape, surface quality and colour. Half-drilled pearls are matched according to jewelry type, such as in pairs for earrings.

Sieves with series of hole sizes are traditionally used to filter out different ranges of pearl diameter size. The pearls are first separated into broader ranges, such as 7-8mm, then more precisely sorted into half millimeter ranges, 7-7.5mm and 7.5-8mm. Pearls with a similar size range are then re-matched by luster, surface, color and nacre quality. Sorted pearls with acceptable uniformity are then strung to make strands, and usually five strands are bundled together to be sold as hanks.

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