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Heart|Natural|GIA

1.53ct K SI1 Heart Natural Diamond

EX • K/SI1 • GIA 1543950076

Certificate GIA 1543950076

Diamond specifications and retailer prices

From $3,169 SGD
As of November 6, 2026
Save $3,735 SGD (54%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $7,717 SGD at NZ Jewellers · As of September 20, 2026
View at NZ Jewellers

About this 1.53ct natural heart diamond

This 1.53ct natural heart 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 stated by the retailer rather than the lab and certified by GIA 1543950076. Listed at 11 retailers as of November 4, 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

1.53
Carat
K
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1543950076
Dimensions7.96 × 7.05 × 4.54 mm
L/W Ratio1.13
Girdle conditionThick
Top View
7.96 mm7.05 mm1.53 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1543950076
Side View
Table 58.0%CrownGirdle: MediumPavilionCulet: NoneDepth 57.0%

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: $4,283 SGD|Low: $3,169 SGD|High: $7,201 SGD|Avg: $4,482 SGD|-4.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 7, 2026
Retailer 2$3,169 SGD
Retailer 7$3,674 SGD
Retailer 8$3,811 SGD
Retailer 6$4,011 SGD
Retailer 1$4,283 SGD
Retailer 9$4,323 SGD
Retailer 3$4,820 SGD
Retailer 4$5,052 SGD
Retailer 5$6,904 SGD

34 data points across 9 retailers

11 retailers$3,169 SGD to $6,904 SGD

A
Cheapest Retailer
-
$3,169 SGD
A
Retailer 2
-
$3,674 SGD
View
A
Retailer 3
-
$3,811 SGD
View
A
Retailer 4
-
$4,011 SGD
View
A
Retailer 5
-
$4,283 SGD
View
B+
Retailer 6
-
$4,323 SGD
View
B+
Retailer 7
-
$4,820 SGD
View
B+
Retailer 8
-
$5,052 SGD
View
B
Retailer 9
-
$6,904 SGD
View
Retailer 10
-
$7,414 SGD
View
Price last confirmed 32 days ago
Most Expensive
NZ Jewellers
01749aa1-057d-4017-871f-461a30d1f7d5 · Sep 20
$7,717 SGD
$6,021 USD
View
Price last confirmed 47 days ago
10 more retailers have this diamond
Prices start from $3,169 SGDSave up to $3,735 SGD

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 Heart
$3,169 SGD