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Heart|Natural|GIA

1.51ct E SI1 Heart Natural Diamond

GD • E/SI1 • GIA 5241064519

Certificate GIA 5241064519

Diamond specifications and retailer prices

From $7,726 AUD
HK$42,400 HKD
As of October 30, 2026
Save $9,966 AUD (56%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $17,693 AUD at NZ Jewellers · As of October 30, 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 SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 5241064519. Listed at 16 retailers as of October 30, 2026, with prices from $7,726 to $17,693, a $9,966 spread on the same certified stone. NZ Jewellers lists it at $17,693. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.51
Carat
E
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5241064519
Dimensions6.94 × 8.07 × 4.59 mm
L/W Ratio1.16
Girdle conditionFaceted
Top View
6.94 mm8.07 mm1.51 ctE / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5241064519
Side View
Table 59.0%CrownGirdle: STK-THKPavilionCulet: NDepth 56.9%

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: $17,693 AUD|Low: $7,726 AUD|High: $19,041 AUD|Avg: $11,258 AUD|-7.1%
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
Retailer 14
Retailer 15
October 30, 2026
Retailer 4$7,726 AUD
Retailer 10$8,650 AUD
Retailer 12$8,748 AUD
Retailer 2$8,812 AUD
Retailer 15$9,434 AUD
Retailer 9$9,498 AUD
Retailer 6$9,764 AUD
Retailer 3$9,773 AUD
Retailer 8$9,928 AUD
Retailer 5$10,179 AUD
Retailer 7$10,739 AUD
Retailer 14$11,303 AUD
Retailer 13$12,882 AUD
Retailer 11$14,822 AUD
NZ Jewellers$17,693 AUD

24 data points across 15 retailers

16 retailers$7,726 AUD to $17,693 AUD

A
Cheapest Retailer
-
$7,726 AUD
HK$42,400 HKD
B+
Retailer 2
-
$8,650 AUD
$6,076 USD
View
B+
Retailer 3
-
$8,748 AUD
$6,145 USD
View
B+
Retailer 4
-
$8,812 AUD
€5,895 EUR
View
B+
Retailer 5
-
$9,434 AUD
$6,627 USD
View
B+
Retailer 6
-
$9,498 AUD
£5,254 GBP
View
B+
Retailer 7
-
$9,764 AUD
$6,859 USD
View
Final sale: no returns
B+
Retailer 8
-
$9,773 AUD
$6,865 USD
View
Retailer 9
-
$9,840 AUD
SGD 9,341 SGD
View
Price last confirmed 18 days ago
B+
Retailer 10
-
$9,928 AUD
£5,491 GBP
View
B+
Retailer 11
-
$10,179 AUD
$7,150 USD
View
Retailer 12
-
$10,739 AUD
View
Price last confirmed 9 days ago
B
Retailer 13
-
$11,303 AUD
$7,940 USD
View
B
Retailer 14
-
$12,882 AUD
ZAR 146,183 ZAR
View
B
Retailer 15
-
$14,822 AUD
£8,198 GBP
View
Most Expensive
B
NZ Jewellers
8d05e944-032d-4c6d-9959-f4b455daba42 · Oct 30
$17,693 AUD
$12,428 USD
View
15 more retailers have this diamond
Prices start from $7,726 AUDSave up to $9,966 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
$7,726 AUD