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Heart|Natural|GIA

1.51ct F SI2 Heart Natural Diamond

EX • F/SI2 • GIA 6542728816

Certificate GIA 6542728816

Diamond specifications and retailer prices

From $4,429 SGD
As of November 6, 2026
Save $4,861 SGD (52%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $10,856 SGD at Queensmith · As of October 28, 2026
View at Queensmith

About this 1.51ct natural heart diamond

This 1.51ct natural heart sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6542728816. Listed at 16 retailers as of November 4, 2026, with a 110% 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

1.51
Carat
F
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6542728816
Dimensions7.06 × 8.02 × 4.60 mm
L/W Ratio1.14
Top View
7.06 mm8.02 mm1.51 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6542728816
Side View
Table 62.0%CrownGirdle: THN-VTKPavilionCulet: NoneDepth 57.4%

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: $10,856 SGD|Low: $4,379 SGD|High: $11,068 SGD|Avg: $6,617 SGD|-1.9%
Queensmith
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 6$4,429 SGD
Retailer 2$4,712 SGD
Retailer 7$5,398 SGD
Retailer 9$5,628 SGD
Retailer 4$5,697 SGD
Retailer 3$5,758 SGD
Retailer 8$6,040 SGD
Retailer 5$9,290 SGD
Queensmith$10,856 SGD

41 data points across 9 retailers

16 retailers$4,429 SGD to $9,290 SGD

A
Cheapest Retailer
-
$4,429 SGD
A
Retailer 2
-
$4,712 SGD
View
A
Retailer 3
-
$5,398 SGD
View
Final sale: no returns
A
Retailer 4
-
$5,628 SGD
View
A
Retailer 5
-
$5,697 SGD
View
A
Retailer 6
-
$5,758 SGD
View
Retailer 7
-
$5,849 SGD
View
Price last confirmed 22 days ago
Retailer 8
-
$5,849 SGD
View
Price last confirmed 22 days ago
Retailer 9
-
$5,849 SGD
View
Price last confirmed 20 days ago
A
Retailer 10
-
$5,890 SGD
View
A
Retailer 11
-
$6,040 SGD
View
B+
Retailer 12
-
$6,212 SGD
View
Retailer 13
-
$6,749 SGD
View
Price last confirmed 19 days ago
B+
Retailer 14
-
$9,290 SGD
View
Retailer 15
-
$10,190 SGD
View
Price last confirmed 20 days ago
Most Expensive
Queensmith
6542728816 · Oct 28
$10,856 SGD
£6,670 GBP
View
Price last confirmed 9 days ago
15 more retailers have this diamond
Prices start from $4,429 SGDSave up to $4,861 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
1.51ct Heart
$4,429 SGD