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Heart|Natural|GIA

1.51ct L SI1 Heart Natural Diamond

EX • L/SI1 • GIA 6552460287

Certificate GIA 6552460287

Diamond specifications and retailer prices

From $4,759 AUD
As of November 5, 2026
Save $3,832 AUD (45%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $8,591 AUD at NZ Jewellers · As of November 5, 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 L colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6552460287. Listed at 10 retailers as of November 5, 2026, with prices from $4,759 to $8,591, a $3,832 spread on the same certified stone. NZ Jewellers lists it at $8,591. 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
L
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6552460287
Dimensions7.92 × 7.09 × 4.68 mm
L/W Ratio1.12
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Crystal, Needle
Top View
7.92 mm7.09 mm1.51 ctL / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6552460287
Side View
Table 61.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 59.1%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $8,591 AUD|Low: $4,759 AUD|High: $8,591 AUD|Avg: $5,564 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 10$4,759 AUD
Retailer 2$4,848 AUD
Retailer 6$4,931 AUD
Retailer 8$4,931 AUD
Retailer 4$5,103 AUD
Retailer 9$5,120 AUD
Retailer 7$5,689 AUD
Retailer 3$5,740 AUD
Retailer 5$6,018 AUD
NZ Jewellers$8,591 AUD

36 data points across 10 retailers

10 retailers$4,759 AUD to $8,591 AUD

B+
Cheapest Retailer
-
$4,759 AUD
B+
Retailer 2
-
$4,848 AUD
View
B
Retailer 3
-
$4,931 AUD
View
Retailer 4
-
$4,931 AUD
View
Price last confirmed 8 days ago
B+
Retailer 5
-
$5,103 AUD
View
B
Retailer 6
-
$5,120 AUD
View
B
Retailer 7
-
$5,689 AUD
View
B
Retailer 8
-
$5,740 AUD
View
B
Retailer 9
-
$6,018 AUD
View
Most Expensive
C
NZ Jewellers
6452a6dd-8696-44af-952e-602593faa753 · Nov 5
$8,591 AUD
$5,903 USD
View
9 more retailers have this diamond
Prices start from $4,759 AUDSave up to $3,832 AUD

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.

B+
1.51ct Heart
$4,759 AUD