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Heart|Natural|GIA

0.51ct E SI1 Heart Natural Diamond

ID • E/SI1 • GIA 1518624145

Certificate GIA 1518624145

Diamond specifications and retailer prices

From $728 SGD
As of November 6, 2026
Save $1,743 SGD (71%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $2,471 SGD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 0.51ct natural heart diamond

This 0.51ct natural heart sits in the half to three-quarter carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1518624145. Listed at 15 retailers as of November 5, 2026, with prices from $728 to $2,471, a $1,743 spread on the same certified stone. NZ Jewellers lists it at $2,471. 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

0.51
Carat
E
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 1518624145
Dimensions4.64 × 5.47 × 3.24 mm
L/W Ratio1.18
Girdle conditionFaceted
Key to symbols
Twinning Wisp, Crystal
Top View
4.64 mm5.47 mm0.51 ctE / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 1518624145
Side View
Table 59.0%CrownGirdle: STK-EXTPavilionCulet: NoneDepth 59.2%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $2,471 SGD|Low: $728 SGD|High: $2,471 SGD|Avg: $1,146 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
November 6, 2026
Retailer 13$728 SGD
Retailer 3$788 SGD
Retailer 10$848 SGD
Retailer 12$848 SGD
Retailer 4$910 SGD
Retailer 6$959 SGD
Retailer 2$961 SGD
Retailer 9$987 SGD
Retailer 11$1,032 SGD
Retailer 5$1,184 SGD
Retailer 7$1,216 SGD
Retailer 8$1,817 SGD
NZ Jewellers$2,471 SGD

38 data points across 13 retailers

15 retailers$728 SGD to $2,471 SGD

A
Cheapest Retailer
-
$728 SGD
Final sale: no returns
A
Retailer 2
-
$746 SGD
View
A
Retailer 3
-
$788 SGD
View
B+
Retailer 4
-
$848 SGD
View
Retailer 5
-
$848 SGD
View
Price last confirmed 8 days ago
B+
Retailer 6
-
$910 SGD
View
B+
Retailer 7
-
$959 SGD
View
B+
Retailer 8
-
$961 SGD
View
B+
Retailer 9
-
$987 SGD
View
B+
Retailer 10
-
$1,032 SGD
View
B
Retailer 11
-
$1,088 SGD
View
Retailer 12
-
$1,184 SGD
View
Price last confirmed 33 days ago
B+
Retailer 13
-
$1,216 SGD
View
B
Retailer 14
-
$1,817 SGD
View
Most Expensive
B
NZ Jewellers
1f9c128c-3fb7-4bd0-affb-343042fe8807 · Nov 5
$2,471 SGD
$1,928 USD
View
14 more retailers have this diamond
Prices start from $728 SGDSave up to $1,743 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
0.51ct Heart
$728 SGD