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Heart|Natural|GIA

1.51ct K SI2 Heart Natural Diamond

EX • K/SI2 • GIA 7518024011

Certificate GIA 7518024011

Diamond specifications and retailer prices

From $2,968 SGD
As of November 6, 2026
Save $3,480 SGD (54%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $6,780 SGD at NZ Jewellers · As of October 18, 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 K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7518024011. Listed at 14 retailers as of November 4, 2026, with a 117% 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
K
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7518024011
Dimensions7.00 × 7.97 × 4.64 mm
L/W Ratio1.14
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp
Top View
7.00 mm7.97 mm1.51 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7518024011
Side View
Table 62.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 58.2%

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: $4,093 SGD|Low: $2,968 SGD|High: $6,849 SGD|Avg: $4,112 SGD|-2.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 7, 2026
Retailer 7$2,968 SGD
Retailer 2$3,154 SGD
Retailer 4$3,628 SGD
Retailer 9$3,820 SGD
Retailer 8$4,049 SGD
Retailer 1$4,093 SGD
Retailer 3$4,133 SGD
Retailer 6$4,191 SGD
Retailer 5$6,448 SGD

45 data points across 9 retailers

14 retailers$2,968 SGD to $6,448 SGD

A
Cheapest Retailer
-
$2,968 SGD
A
Retailer 2
-
$3,154 SGD
View
A
Retailer 3
-
$3,628 SGD
View
A
Retailer 4
-
$3,820 SGD
View
Retailer 5
-
$3,892 SGD
View
Price last confirmed 20 days ago
Retailer 6
-
$3,892 SGD
View
Price last confirmed 22 days ago
Retailer 7
-
$4,041 SGD
View
Price last confirmed 22 days ago
A
Retailer 8
-
$4,049 SGD
View
A
Retailer 9
-
$4,093 SGD
View
B+
Retailer 10
-
$4,133 SGD
View
B+
Retailer 11
-
$4,191 SGD
View
Retailer 12
-
$4,491 SGD
View
Price last confirmed 19 days ago
B
Retailer 13
-
$6,448 SGD
View
Most Expensive
NZ Jewellers
bfe540df-00e2-4027-9cf9-2241629007fc · Oct 18
$6,780 SGD
$5,290 USD
View
Price last confirmed 20 days ago
13 more retailers have this diamond
Prices start from $2,968 SGDSave up to $3,480 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
$2,968 SGD