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1.53ct K SI1 Round Natural Diamond

EX • K/SI1 • IGI 815627660

Shape and cutting style on the report: Round brilliant

Certificate IGI 815627660

Diamond specifications and retailer prices

From $2,177 CAD
As of November 6, 2026
Save $2,612 CAD (55%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $4,789 CAD at MOH London · As of November 4, 2026
View at MOH London

About this 1.53ct natural round diamond

This 1.53ct natural round sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI 815627660. Listed at 5 retailers as of November 4, 2026, with prices from $2,177 to $4,789, a $2,612 spread on the same certified stone. MOH London lists it at $4,789. 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
K
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.2°
Pavilion angle40.7°
OriginNatural
Grading LabIGI
CertificateIGI 815627660
Dimensions7.32 × 7.36 × 4.61 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
7.32 mm7.36 mm1.53 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 815627660
Side View
Table 56.0%Crown 36.2°Girdle: MediumPavilion 40.7°CuletDepth 62.7%

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: Nov 6
Current: $4,789 CAD|Low: $2,177 CAD|High: $4,858 CAD|Avg: $3,218 CAD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
November 6, 2026
Retailer 2$2,177 CAD
Retailer 4$2,666 CAD
Retailer 3$3,010 CAD
MOH London$4,789 CAD

46 data points across 4 retailers

5 retailers$2,177 CAD to $4,789 CAD

A
Cheapest Retailer
-
$2,177 CAD
Retailer 2
-
$2,532 CAD
View
Price last confirmed 95 days ago
B+
Retailer 3
-
$2,666 CAD
View
A
Retailer 4
-
$3,010 CAD
View
Most Expensive
B+
MOH London
7334171B4 · Nov 4
$4,789 CAD
£2,700 GBP
View
4 more retailers have this diamond
Prices start from $2,177 CADSave up to $2,612 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
$2,177 CAD