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Heart|Natural|GIA

1.50ct K SI1 Heart Natural Diamond

EX • K/SI1 • GIA 6542475806

Certificate GIA 6542475806

Diamond specifications and retailer prices

From $2,739 SGD
As of November 6, 2026
Save $3,568 SGD (57%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $7,526 SGD at NZ Jewellers · As of October 18, 2026
View at NZ Jewellers

About this 1.5ct natural heart diamond

This 1.5ct 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 6542475806. Listed at 16 retailers as of November 2, 2026, with a 130% 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

1.50
Carat
K
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 6542475806
Dimensions7.17 × 8.28 × 4.54 mm
L/W Ratio1.15
Top View
7.17 mm8.28 mm1.50 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 6542475806
Side View
Table 64.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 54.8%

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 6
Current: $7,526 SGD|Low: $2,707 SGD|High: $7,526 SGD|Avg: $4,038 SGD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 6, 2026
Retailer 12$2,739 SGD
Retailer 10$2,780 SGD
Retailer 2$2,918 SGD
Retailer 13$3,531 SGD
Retailer 4$3,600 SGD
Retailer 6$3,600 SGD
Retailer 14$3,738 SGD
Retailer 7$3,805 SGD
Retailer 8$3,810 SGD
Retailer 5$3,909 SGD
Retailer 3$4,154 SGD
Retailer 9$4,393 SGD
Retailer 11$6,307 SGD
NZ Jewellers$7,526 SGD

35 data points across 14 retailers

16 retailers$2,739 SGD to $6,307 SGD

A
Cheapest Retailer
-
$2,739 SGD
A
Retailer 2
-
$2,780 SGD
View
A
Retailer 3
-
$2,918 SGD
View
A
Retailer 4
-
$3,415 SGD
View
A
Retailer 5
-
$3,531 SGD
View
Retailer 6
-
$3,600 SGD
View
Price last confirmed 21 days ago
Retailer 7
-
$3,600 SGD
View
Price last confirmed 19 days ago
Retailer 8
-
$3,738 SGD
View
Price last confirmed 21 days ago
A
Retailer 9
-
$3,805 SGD
View
A
Retailer 10
-
$3,810 SGD
View
B+
Retailer 11
-
$3,813 SGD
View
B+
Retailer 12
-
$3,909 SGD
View
Retailer 13
-
$4,154 SGD
View
Price last confirmed 18 days ago
B+
Retailer 14
-
$4,393 SGD
View
B
Retailer 15
-
$6,307 SGD
View
Most Expensive
NZ Jewellers
06b791bb-6a5c-4c82-83ca-7c84a71cfb71 · Oct 18
$7,526 SGD
$5,872 USD
View
Price last confirmed 19 days ago
15 more retailers have this diamond
Prices start from $2,739 SGDSave up to $3,568 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
1.50ct Heart
$2,739 SGD