Round|Natural|IGI

1.53ct I SI1 Round Natural Diamond

EX • I/SI1 • IGI 642405110

Shape and cutting style on the report: Round brilliant

Certificate IGI 642405110

Diamond specifications and retailer prices

From $5,079 CAD
As of November 5, 2026
Save $4,552 CAD (47%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $10,209 CAD at NZ Jewellers · As of September 19, 2026
View at NZ Jewellers

About this 1.53ct natural round diamond

This 1.53ct natural round sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI 642405110. Listed at 13 retailers as of November 4, 2026, with a 90% 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

1.53
Carat
I
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle41.2°
OriginNatural
Grading LabIGI
CertificateIGI 642405110
Dimensions7.37 × 7.42 × 4.53 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
7.37 mm7.42 mm1.53 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 642405110
Side View
Table 61.0%Crown 35°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 61.2%

Caratlytics Score

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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: Nov 5
Current: $5,922 CAD|Low: $4,507 CAD|High: $9,916 CAD|Avg: $6,342 CAD|-1.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 3$5,079 CAD
Retailer 7$5,191 CAD
Retailer 8$5,408 CAD
Retailer 6$5,496 CAD
Retailer 1$5,922 CAD
Retailer 5$6,512 CAD
Retailer 2$7,047 CAD
Retailer 4$9,631 CAD

30 data points across 8 retailers

13 retailers$5,079 CAD to $9,631 CAD

A
Cheapest Retailer
-
$5,079 CAD
A
Retailer 2
-
$5,191 CAD
View
A
Retailer 3
-
$5,496 CAD
View
Retailer 4
-
$5,565 CAD
View
Price last confirmed 102 days ago
Retailer 5
-
$5,860 CAD
View
Price last confirmed 44 days ago
A
Retailer 6
-
$5,922 CAD
View
Retailer 7
-
$6,031 CAD
View
Price last confirmed 19 days ago
Retailer 8
-
$6,031 CAD
View
Price last confirmed 21 days ago
A
Retailer 9
-
$6,512 CAD
View
Retailer 10
-
$6,761 CAD
View
Price last confirmed 45 days ago
A
Retailer 11
-
$7,047 CAD
View
B+
Retailer 12
-
$9,631 CAD
View
Most Expensive
NZ Jewellers
a8833919-68e5-4601-bf50-ec555be2abf0 · Sep 19
$10,209 CAD
$7,310 USD
View
Price last confirmed 47 days ago
12 more retailers have this diamond
Prices start from $5,079 CADSave up to $4,552 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
1.53ct Round
$5,079 CAD