Round|Natural|GIA

1.03ct E SI1 Round Natural Diamond

EX • E/SI1 • GIA 2183738130

Certificate GIA 2183738130

Diamond specifications and retailer prices

From $4,295 CAD
As of October 31, 2026
Save $5,050 CAD (54%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $9,736 CAD at NZ Jewellers · As of September 21, 2026
View at NZ Jewellers

About this 1.03ct natural round diamond

This 1.03ct 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 2183738130. Listed at 23 retailers as of October 31, 2026, with a 118% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.03
Carat
E
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 2183738130
Dimensions6.56 × 6.52 × 3.95 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Feather, Crystal, Cloud, Needle, Indented Natural
Top View
6.56 mm6.52 mm1.03 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2183738130
Side View
Table 60.0%Crown 35°Girdle: THN-STKPavilion 40.8°Culet: NoneDepth 60.4%

Caratlytics Score

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

Price History

Last verified: Oct 31
Current: $6,132 CAD|Low: $3,670 CAD|High: $9,458 CAD|Avg: $5,991 CAD|+2.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 5, 2026
Retailer 3$4,324 CAD
Retailer 5$4,405 CAD
Retailer 11$4,673 CAD
Retailer 2$5,423 CAD
Retailer 9$5,507 CAD
Retailer 6$5,680 CAD
Retailer 12$5,923 CAD
Retailer 1$6,132 CAD
Retailer 10$6,402 CAD
Retailer 8$6,868 CAD
Retailer 4$8,075 CAD
Retailer 7$9,345 CAD

33 data points across 12 retailers

23 retailers$4,295 CAD to $9,345 CAD

A
Cheapest Retailer
-
$4,295 CAD
A
Retailer 2
-
$4,324 CAD
View
A
Retailer 3
-
$4,367 CAD
View
A
Retailer 4
-
$4,405 CAD
View
A
Retailer 5
-
$4,494 CAD
View
B+
Retailer 6
-
$4,644 CAD
View
Retailer 7
-
$4,733 CAD
View
Price last confirmed 82 days ago
B+
Retailer 8
-
$4,860 CAD
View
Retailer 9
-
$5,063 CAD
View
Price last confirmed 44 days ago
B+
Retailer 10
-
$5,067 CAD
View
Retailer 11
-
$5,179 CAD
View
Price last confirmed 14 days ago
B+
Retailer 12
-
$5,423 CAD
View
B+
Retailer 13
-
$5,507 CAD
View
B+
Retailer 14
-
$5,680 CAD
View
Retailer 15
-
$5,842 CAD
View
Price last confirmed 45 days ago
Retailer 16
-
$5,923 CAD
View
Price last confirmed 38 days ago
B+
Retailer 17
-
$5,973 CAD
View
B+
Retailer 18
-
$6,132 CAD
View
B+
Retailer 19
-
$6,402 CAD
View
B+
Retailer 20
-
$6,868 CAD
View
Retailer 21
-
$8,075 CAD
View
Price last confirmed 11 days ago
B
Retailer 22
-
$9,345 CAD
View
Most Expensive
NZ Jewellers
8363590a-6b36-4b83-82ef-8c882ce3cade · Sep 21
$9,736 CAD
$6,971 USD
View
Price last confirmed 45 days ago
22 more retailers have this diamond
Prices start from $4,295 CADSave up to $5,050 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
1.03ct Round
$4,295 CAD