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Heart|Natural|GIA

1.51ct E SI2 Heart Natural Diamond

EX • E/SI2 • GIA 7558036784

Certificate GIA 7558036784

Diamond specifications and retailer prices

From $5,018 AUD
₹335,691 INR
As of October 30, 2026
Save $5,535 AUD (52%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $12,195 AUD 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 E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7558036784. Listed at 13 retailers as of October 29, 2026, with a 110% 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
E
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7558036784
Dimensions7.06 × 7.79 × 4.60 mm
L/W Ratio1.10
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Feather
Top View
7.06 mm7.79 mm1.51 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7558036784
Side View
Table 62.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 59.0%

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: Oct 30
Current: $5,018 AUD|Low: $4,953 AUD|High: $10,953 AUD|Avg: $6,623 AUD|-5.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 30, 2026
Retailer 1$5,018 AUD
Retailer 10$5,243 AUD
Retailer 9$5,748 AUD
Retailer 2$5,922 AUD
Retailer 7$6,050 AUD
Retailer 3$6,553 AUD
Retailer 6$6,804 AUD
Retailer 5$7,025 AUD
Retailer 8$7,104 AUD
Retailer 4$10,553 AUD

34 data points across 10 retailers

13 retailers$5,018 AUD to $10,553 AUD

A
Cheapest Retailer
-
$5,018 AUD
₹335,691 INR
A
Retailer 2
-
$5,243 AUD
$3,683 USD
View
Final sale: no returns
A
Retailer 3
-
$5,748 AUD
$4,038 USD
View
A
Retailer 4
-
$5,922 AUD
$4,160 USD
View
A
Retailer 5
-
$6,050 AUD
$4,250 USD
View
A
Retailer 6
-
$6,553 AUD
£3,625 GBP
View
A
Retailer 7
-
$6,804 AUD
$4,779 USD
View
Retailer 8
-
$7,000 AUD
$4,917 USD
View
Price last confirmed 35 days ago
A
Retailer 9
-
$7,025 AUD
€4,700 EUR
View
A
Retailer 10
-
$7,104 AUD
$4,990 USD
View
Retailer 11
-
$8,076 AUD
$5,673 USD
View
Price last confirmed 36 days ago
B+
Retailer 12
-
$10,553 AUD
£5,837 GBP
View
Most Expensive
NZ Jewellers
9ab3b2b4-216f-44ff-abe7-1330f012a458 · Sep 25
$12,195 AUD
$8,566 USD
View
Price last confirmed 35 days ago
12 more retailers have this diamond
Prices start from $5,018 AUDSave up to $5,535 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.

A
1.51ct Heart
$5,018 AUD