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GUILD Certification

Certified Excellence

Every pearl in our certificated jewelry collection comes with the assurance of world-class gemological certification

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GUILD Lab Certified
Third-Party Verified
International Standards
Scientific Grading

What is GUILD Certification?

GUILD Gem Laboratory is one of the world's leading gemological institutions. Their independent certification provides scientific validation of each pearl's quality, origin, and characteristics.When you purchase a GUILD-certified pearl from House of Pearls, you receive a detailed laboratory report that serves as your guarantee of authenticity and quality.

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How GUILD Grades Our Pearls

01

Luster

The mirror-like reflection that defines a pearl's glow

02

Surface

Examined for natural blemishes and imperfections

03

Shape

From perfectly round to unique baroque forms

04

Size

Measured in millimeters for precision

05

Color

Natural hues ranging from white to golden to black

06

Nacre

The thickness that ensures lasting beauty

GUILD Quality Grades Explained

Grade Luster Surface Shape Rarity
AAAA Supreme Mirror-bright reflection Virtually flawless Perfectly round Extremely rare
AAA Exceptional Highly bright Minor natural marks Round to near-round Rare
AA+ Superior Bright with gentle glow Minor to medium characteristics Round to off-round Uncommon
AA Classic Soft, gentle glow Medium natural characteristics Off-round Classic quality

Our Commitment to Transparency

At House of Pearls, we believe you deserve to know exactly what you're purchasing. That's why we've partnered with GUILD to offer third-party certification on select pieces.Our internal grading standards often exceed industry norms. Many pearls we grade as AA+ have successfully achieved GUILD's prestigious certification — proof of our unwavering commitment to quality.

View Sample Certificate

Your Certificate, Decoded

1

Certificate ID

Unique identification number for tracking and verification purposes
2

Pearl Specifications

Size, shape, weight, and type of pearl documented with precise measurements
3

Origin Verification

Natural or cultured confirmation with source location details
4

Quality Assessment

Grade and key characteristics including luster, surface quality, and color
5

Laboratory Authentication

Official stamp and signature from certified gemological laboratory

Shop GUILD Certified Pieces

✓ Certified Pearl Jewelry Collection

Solitaire pendant necklace with a 12-13mm Golden South Sea pearl on a gold chain, GUILD Certified
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12-13mm Golden South Sea Pearl Classic Solitaire Pendant Necklace - GUILD Certified

PRODUCT TYPE: Pendants

A timeless solitaire design featuring a luminous AAAA golden South Sea pearl set in solid 18K gold. Paired with a strong gold-plated silver chain, this elegant necklace is designed for everyday luxury and lasting beauty. Each pendant features an AAAA-grade...

$769.00
13–14mm Peach Pink Sunrise Pearl Stud Earrings with warm caramel-peach pearls
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13–16mm Peach Pink Sunrise Pearl Necklace - GRC Certified

PRODUCT TYPE: Necklaces

A rare Sunrise peach-pink freshwater pearl necklace, crafted from large 13–16mm round pearls with high luster and minimal natural markings.Soft caramel-peach tones glow warmly on the skin—elegant, distinctive, and unmistakably high-end. • Pearl size: 13–16mm• Color: Peach Pink / Sunrise•...

$1,039.00
Akoya Pearl Necklace by House Of Pearls, AAA Grade Japanese white 5.5-6mm pearls
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AAA Grade 5.5-6mm Japanese Akoya Pearl Strand Necklace | PSL Rosé Certified

PRODUCT TYPE: Necklaces

Japanese Akoya White Pearl Strand Necklace | 5.5–6mm | PSL Rosé Certified | Japanese Silver Teardrop Clasp Delicate rarity. The Rosé glow of Japanese mastery. This 5.5–6mm Japanese Akoya White Pearl Strand proves that extraordinary quality comes in intimate scale....

$869.00
AA+ Grade Freshwater Pearl Strand Necklace by House Of Pearls, white round pearls with silver clasp
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AAA+ Grade Freshwater Pearl Strand Necklace - GRC Certified

PRODUCT TYPE: Necklaces

Substantial presence. Accessible luxury. This 11–12mm Freshwater Pearl Strand Necklace delivers impressive scale and brilliant luster at remarkable value. Each pearl is round and substantial — the size typically reserved for fine jewelry — with high luster that catches light...

$499.00Now $349.00
Hanadama Grade 7.5–8mm Akoya Pearl Necklace with white pearls on a classic strand
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AAA 7.5-8.0mm Japanese Akoya White Pearl Strand Necklace | GRC Certified

PRODUCT TYPE: Necklaces

This classic Akoya pearl strand necklace features beautifully matched 7.5–8mm Akoya pearls, prized for their exceptional luster and timeless elegance. Each pearl is carefully selected and hand-strung to create a refined, balanced strand with a smooth, radiant finish. Measuring 45cm...

$1,599.00
Royal Crown Golden South Sea Pearl pendant necklace in 18K gold with a diamond-accent crown setting
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Royal Crown Golden South Sea Pearl 18K Gold Pendant Necklace - GUILD Certified

PRODUCT TYPE: Pendants

Inspired by regal elegance, this design showcases a radiant golden South Sea pearl crowned with subtle brilliance. Crafted in solid 18K gold, it’s a refined statement for those who appreciate classic luxury. Each pendant features an AAAA-grade Golden South Sea...

$659.00

Frequently Asked Questions

QUESTION 1. What is the difference between GUILD and GRC certification?

Both are respected gemological laboratories. GUILD is internationally recognized for pearl grading, while GRC offers comprehensive gemological reports. We primarily work with GUILD for pearl certification.

QUESTION 2. Does every pearl come with certification?

Certification is available on select pieces. Each certified product page will indicate if GUILD or GRA certification is included.

QUESTION 3. How long does certification take?

For new purchases, certified pieces are ready to ship immediately. For existing jewelry to request for additional 3rd party certification, the certification process typically takes 2-3 weeks.

QUESTION 4. Is there a cost for certification?

GUILD certification is complimentary on eligible pieces. For existing jewelry which request for additional certification, a fee may apply.

QUESTION 5. Can I verify my certificate online?

Yes, each GUILD certificate has a unique ID that can be verified through GUILD's official website.
Unparalleled Quality.

Hand-selected and individually inspected pearls ensure our highest quality standards.

Fair & Transparent Pricing.

Jewelry up to 80% below traditional retail prices. Luxury without the markup.

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