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Heart|Natural|HRD

1.51ct E SI2 Heart Natural Diamond

ID • E/SI2 • HRD 190000010563

Shape and cutting style on the report: Heart

Certificate HRD 190000010563

Diamond specifications and retailer prices

From $9,975 AUD
€6,673 EUR
As of October 29, 2026
Save $6,292 AUD (39%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $19,416 AUD at NZ Jewellers · As of September 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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by HRD 190000010563. Listed at 10 retailers as of October 29, 2026, with a 63% 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
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabHRD
CertificateHRD 190000010563
Dimensions6.91 × 7.31 × 3.88 mm
L/W Ratio1.06
Girdle conditionFaceted
Top View
6.91 mm7.31 mm1.51 ctE / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateHRD 190000010563
Side View
Table 64.0%CrownGirdlePavilionCulet: 13.Depth 53.0%

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: Oct 29
Current: $16,266 AUD|Low: $7,483 AUD|High: $16,375 AUD|Avg: $11,344 AUD|+0.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 29, 2026
Retailer 3$7,483 AUD
Retailer 2$9,975 AUD
Retailer 6$10,035 AUD
Retailer 7$10,649 AUD
Retailer 5$10,717 AUD
Retailer 11$10,727 AUD
Retailer 9$11,855 AUD
Retailer 4$11,994 AUD
Retailer 10$12,445 AUD
Retailer 8$13,396 AUD
Retailer 1$16,266 AUD

22 data points across 11 retailers

10 retailers$9,975 AUD to $16,266 AUD

B+
Cheapest Retailer
-
$9,975 AUD
€6,673 EUR
B+
Retailer 2
-
$10,035 AUD
$7,049 USD
View
B
Retailer 3
-
$10,649 AUD
View
B
Retailer 4
-
$10,717 AUD
$7,528 USD
View
Final sale: no returns
Retailer 5
-
$11,609 AUD
$8,155 USD
View
Price last confirmed 31 days ago
B
Retailer 6
-
$11,855 AUD
$8,328 USD
View
B+
Retailer 7
-
$11,994 AUD
€8,024 EUR
View
Retailer 8
-
$13,396 AUD
$9,410 USD
View
Price last confirmed 31 days ago
B
Retailer 9
-
$16,266 AUD
£8,997 GBP
View
Most Expensive
NZ Jewellers
d0054fb0-88f9-44e5-bd81-4ec3c4643c1a · Sep 30
$19,416 AUD
$13,639 USD
View
Price last confirmed 30 days ago
9 more retailers have this diamond
Prices start from $9,975 AUDSave up to $6,292 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
$9,975 AUD