Round|Natural|GIA

1.09ct E SI1 Round Natural Diamond

EX • E/SI1 • GIA 2566167756

Certificate GIA 2566167756

Diamond specifications and retailer prices

From €3,325 EUR

$3,715 USD

As of October 30, 2026

Save €3,032 EUR (48%) vs most expensive(unlock to see where)

11 retailers carry this diamond

Most expensive: €6,357 EUR at NZ Jewellers · As of October 30, 2026

View at NZ Jewellers

About this 1.09ct natural round diamond

This 1.09ct natural round sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2566167756. Listed at 11 retailers as of October 30, 2026, with prices from €3,325 to €6,357, a €3,032 spread on the same certified stone. NZ Jewellers lists it at €6,357. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.09

Carat

Color

SI1

Clarity

Excellent

Cut

Specifications

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle35.5°

Pavilion angle41°

OriginNatural

Grading LabGIA

CertificateGIA 2566167756

Dimensions6.52 × 6.56 × 4.11 mm

L/W Ratio1.01

Girdle conditionSlightly Thick

Key to symbols

Cloud, Crystal, Feather, Needle

View GIA Report →View Loupe360 Video →

Top View

OriginNatural

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateGIA 2566167756

Side View

Caratlytics Score

How it works →

B+

Very Good

Strong quality and value balance

Unlock full score analysis

See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30

Current: €6,357 EUR|Low: €3,289 EUR|High: €6,357 EUR|Avg: €4,187 EUR

NZ Jewellers

Retailer 2

Retailer 3

Retailer 4

Retailer 5

Retailer 6

Retailer 7

Retailer 8

Retailer 9

Retailer 10

Retailer 11

October 30, 2026

Retailer 3€3,325 EUR

Retailer 5€3,340 EUR

Retailer 4€3,522 EUR

Retailer 7€3,527 EUR

Retailer 8€3,649 EUR

Retailer 10€3,649 EUR

Retailer 9€3,777 EUR

Retailer 11€3,912 EUR

Retailer 2€4,115 EUR

Retailer 6€6,135 EUR

NZ Jewellers€6,357 EUR

38 data points across 11 retailers

11 retailers€3,325 EUR to €6,357 EUR

B+

Cheapest Retailer

€3,325 EUR

$3,715 USD

B+

Retailer 2

€3,340 EUR

£2,938 GBP

View

B+

Retailer 3

€3,522 EUR

£3,098 GBP

View

B+

Retailer 4

€3,527 EUR

$3,940 USD

View

B+

Retailer 5

€3,649 EUR

$4,077 USD

View

B+

Retailer 6

€3,649 EUR

$4,077 USD

View

B+

Retailer 7

€3,777 EUR

$4,220 USD

View

Retailer 8

€3,912 EUR

A$6,725 AUD

View

Price last confirmed 27 days ago

B+

Retailer 9

€4,115 EUR

$4,597 USD

View

Retailer 10

€6,135 EUR

£5,397 GBP

View

Most Expensive

NZ Jewellers

23bae50b-c1d2-4e30-9ff8-e181c07234c8 · Oct 30

€6,357 EUR

$7,102 USD

View

10 more retailers have this diamond

Prices start from €3,325 EURSave up to €3,032 EUR

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

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B+

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