Round|Natural|GIA

1.09ct E SI1 Round Natural Diamond

EX • E/SI1 • GIA 2566167756

Certificate GIA 2566167756

Diamond specifications and retailer prices

From $5,200 CAD
$3,715 USD
As of October 29, 2026
Save $4,740 CAD (48%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $9,940 CAD at NZ Jewellers · As of October 27, 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 27, 2026, with prices from $5,200 to $9,940, a $4,740 spread on the same certified stone. NZ Jewellers lists it at $9,940. 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
E
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
Top View
6.52 mm6.56 mm1.09 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2566167756
Side View
Table 57.0%Crown 35.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.9%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $9,940 CAD|Low: $5,143 CAD|High: $9,940 CAD|Avg: $6,546 CAD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 29, 2026
Retailer 3$5,200 CAD
Retailer 2$5,206 CAD
Retailer 7$5,514 CAD
Retailer 5$5,522 CAD
Retailer 8$5,706 CAD
Retailer 10$5,706 CAD
Retailer 9$5,906 CAD
Retailer 11$6,118 CAD
Retailer 4$6,434 CAD
Retailer 6$9,593 CAD
NZ Jewellers$9,940 CAD

37 data points across 11 retailers

11 retailers$5,200 CAD to $9,940 CAD

B+
Cheapest Retailer
-
$5,200 CAD
$3,715 USD
A
Retailer 2
-
$5,206 CAD
£2,929 GBP
View
B+
Retailer 3
-
$5,514 CAD
$3,940 USD
View
B+
Retailer 4
-
$5,522 CAD
£3,106 GBP
View
B+
Retailer 5
-
$5,706 CAD
$4,077 USD
View
B+
Retailer 6
-
$5,706 CAD
$4,077 USD
View
B+
Retailer 7
-
$5,906 CAD
$4,220 USD
View
B+
Retailer 8
-
$6,118 CAD
A$6,725 AUD
View
Price last confirmed 26 days ago
B+
Retailer 9
-
$6,434 CAD
$4,597 USD
View
B
Retailer 10
-
$9,593 CAD
£5,397 GBP
View
Most Expensive
B
NZ Jewellers
23bae50b-c1d2-4e30-9ff8-e181c07234c8 · Oct 27
$9,940 CAD
$7,102 USD
View
10 more retailers have this diamond
Prices start from $5,200 CADSave up to $4,740 CAD

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.

A
1.09ct Round
$5,200 CAD