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Heart|Natural|GIA

1.53ct D SI1 Heart Natural Diamond

ID • D/SI1 • GIA 6552739831

Certificate GIA 6552739831

Diamond specifications and retailer prices

From $11,090 CAD
$7,939 USD
As of October 25, 2026
Save $1,819 CAD (14%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $12,909 CAD at Blue Nile · As of October 31, 2026
View at Blue Nile

About this 1.53ct natural heart diamond

This 1.53ct natural heart sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6552739831. Listed at 5 retailers as of October 25, 2026, with prices from $11,090 to $12,909, a $1,819 spread on the same certified stone. Blue Nile lists it at $12,909. 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
D
Color
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6552739831
Dimensions7.24 × 7.88 × 4.52 mm
L/W Ratio1.09
Girdle conditionFaceted
Culet sizeNone
Top View
7.24 mm7.88 mm1.53 ctD / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6552739831
Side View
Table 57.0%CrownGirdle: Slightly Thick to Very ThickPavilionCulet: NDepth 57.3%

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 25
Current: $12,909 CAD|Low: $9,240 CAD|High: $12,909 CAD|Avg: $11,278 CAD|+11.1%
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 31, 2026
Retailer 3$10,081 CAD
Retailer 7$10,179 CAD
Retailer 6$10,922 CAD
Retailer 4$11,090 CAD
Retailer 8$11,259 CAD
Retailer 2$11,884 CAD
Retailer 5$12,603 CAD
Blue Nile$12,909 CAD

17 data points across 8 retailers

5 retailers$11,090 CAD to $12,909 CAD

Retailer 1
-
$10,922 CAD
$7,819 USD
Price last confirmed 9 days ago
B+
Retailer 2
-
$11,090 CAD
$7,939 USD
View
B+
Retailer 3
-
$11,884 CAD
€8,102 EUR
View
Retailer 4
-
$12,603 CAD
$9,022 USD
View
Price last confirmed 8 days ago
Most Expensive
B
Blue Nile
29650954 · Oct 31
$12,909 CAD
$9,241 USD
View
4 more retailers have this diamond
Prices start from $11,090 CADSave up to $1,819 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.

B+
1.53ct Heart
$11,090 CAD