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Heart|Natural|GIA

1.51ct I SI2 Heart Natural Diamond

EX • I/SI2 • GIA 5546346351

Certificate GIA 5546346351

Diamond specifications and retailer prices

From $3,100 SGD
As of November 6, 2026
Save $3,705 SGD (54%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $6,805 SGD at MOH London · As of November 4, 2026
View at MOH London

About this 1.51ct natural heart diamond

This 1.51ct natural heart sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5546346351. Listed at 14 retailers as of November 4, 2026, with prices from $3,100 to $6,805, a $3,705 spread on the same certified stone. MOH London lists it at $6,805. 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
I
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 5546346351
Dimensions7.01 × 7.97 × 4.70 mm
L/W Ratio1.14
Top View
7.01 mm7.97 mm1.51 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 5546346351
Side View
Table 63.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 58.9%

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: $6,805 SGD|Low: $3,084 SGD|High: $7,874 SGD|Avg: $4,433 SGD|-12.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 5, 2026
Retailer 5$3,100 SGD
Retailer 4$3,337 SGD
Retailer 2$3,574 SGD
Retailer 3$4,222 SGD
Retailer 6$4,264 SGD
Retailer 8$4,322 SGD
Retailer 9$4,352 SGD
Retailer 7$4,383 SGD
MOH London$6,805 SGD

45 data points across 9 retailers

14 retailers$3,100 SGD to $6,805 SGD

A
Cheapest Retailer
-
$3,100 SGD
A
Retailer 2
-
$3,337 SGD
View
A
Retailer 3
-
$3,574 SGD
View
A
Retailer 4
-
$4,222 SGD
View
A
Retailer 5
-
$4,264 SGD
View
Retailer 6
-
$4,322 SGD
View
Price last confirmed 10 days ago
A
Retailer 7
-
$4,352 SGD
View
A
Retailer 8
-
$4,383 SGD
View
A
Retailer 9
-
$4,596 SGD
View
Retailer 10
-
$4,653 SGD
View
Price last confirmed 29 days ago
Retailer 11
-
$4,653 SGD
View
Price last confirmed 29 days ago
Retailer 12
-
$4,832 SGD
View
Price last confirmed 36 days ago
Retailer 13
-
$5,369 SGD
View
Price last confirmed 38 days ago
Most Expensive
B+
MOH London
0FB90FE62 · Nov 4
$6,805 SGD
£4,181 GBP
View
13 more retailers have this diamond
Prices start from $3,100 SGDSave up to $3,705 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
$3,100 SGD