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Heart|Natural|GIA

1.51ct I SI2 Heart Natural Diamond

EX • I/SI2 • GIA 2558582288

Certificate GIA 2558582288

Diamond specifications and retailer prices

From $3,840 SGD
As of November 6, 2026
Save $4,700 SGD (55%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $9,698 SGD at NZ Jewellers · As of September 25, 2026
View at NZ Jewellers

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 2558582288. Listed at 13 retailers as of November 2, 2026, with a 122% 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
I
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2558582288
Dimensions7.02 × 7.80 × 4.64 mm
L/W Ratio1.11
Girdle conditionFaceted
Top View
7.02 mm7.80 mm1.51 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2558582288
Side View
Table 58.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 59.4%

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: $5,745 SGD|Low: $3,790 SGD|High: $9,181 SGD|Avg: $5,433 SGD|-5.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 11$3,840 SGD
Retailer 8$3,855 SGD
Retailer 5$4,122 SGD
Retailer 2$4,129 SGD
Retailer 10$4,269 SGD
Retailer 7$4,844 SGD
Retailer 4$5,171 SGD
Retailer 1$5,745 SGD
Retailer 9$6,869 SGD
Retailer 3$7,969 SGD
Retailer 6$8,539 SGD

34 data points across 11 retailers

13 retailers$3,840 SGD to $8,539 SGD

A
Cheapest Retailer
-
$3,840 SGD
A
Retailer 2
-
$3,855 SGD
View
A
Retailer 3
-
$4,122 SGD
View
A
Retailer 4
-
$4,129 SGD
View
A
Retailer 5
-
$4,269 SGD
View
Final sale: no returns
A
Retailer 6
-
$4,844 SGD
View
A
Retailer 7
-
$5,171 SGD
View
B+
Retailer 8
-
$5,538 SGD
View
B+
Retailer 9
-
$5,745 SGD
View
B+
Retailer 10
-
$6,869 SGD
View
B+
Retailer 11
-
$7,969 SGD
View
B
Retailer 12
-
$8,539 SGD
View
Most Expensive
NZ Jewellers
79b6de24-c94c-44b2-a0a4-19c056c56763 · Sep 25
$9,698 SGD
$7,567 USD
View
Price last confirmed 42 days ago
12 more retailers have this diamond
Prices start from $3,840 SGDSave up to $4,700 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
$3,840 SGD