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Heart|Natural|GIA

1.01ct E SI1 Heart Natural Diamond

EX • E/SI1 • GIA 1543270378

Certificate GIA 1543270378

Diamond specifications and retailer prices

From $1,899 AUD
As of November 6, 2026
Save $2,064 AUD (52%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $6,928 AUD at NZ Jewellers · As of September 29, 2026
View at NZ Jewellers

About this 1.01ct natural heart diamond

This 1.01ct natural heart sits in the classic one-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 1543270378. Listed at 19 retailers as of November 6, 2026, with a 109% 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

1.01
Carat
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Pavilion angle43.5°
OriginNatural
Grading LabGIA
CertificateGIA 1543270378
Dimensions5.82 × 6.90 × 4.24 mm
L/W Ratio1.19
Girdle conditionFaceted
Top View
5.82 mm6.90 mm1.01 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1543270378
Side View
Table 60.0%CrownGirdle: MED-VTKPavilion 43.5°Culet: NoneDepth 61.4%

Caratlytics Score

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

Price History

Last verified: Nov 6
Current: $3,963 AUD|Low: $1,880 AUD|High: $4,686 AUD|Avg: $2,759 AUD|-7.3%
Retailer 1
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
Retailer 16
Retailer 17
November 6, 2026
Retailer 11$1,899 AUD
Retailer 5$2,131 AUD
Retailer 2$2,173 AUD
Retailer 4$2,237 AUD
Retailer 6$2,268 AUD
Retailer 12$2,270 AUD
Retailer 8$2,300 AUD
Retailer 7$2,393 AUD
Retailer 3$2,433 AUD
Retailer 16$2,467 AUD
Retailer 13$2,492 AUD
Retailer 10$2,848 AUD
Retailer 14$2,936 AUD
Retailer 15$3,173 AUD
Retailer 9$3,454 AUD
Retailer 1$3,963 AUD
Retailer 17$4,577 AUD

25 data points across 17 retailers

19 retailers$1,899 AUD to $3,963 AUD

A
Cheapest Retailer
-
$1,899 AUD
Retailer 2
-
$2,131 AUD
View
Price last confirmed 8 days ago
A
Retailer 3
-
$2,173 AUD
View
Final sale: no returns
A
Retailer 4
-
$2,237 AUD
View
Retailer 5
-
$2,268 AUD
View
Price last confirmed 9 days ago
A
Retailer 6
-
$2,270 AUD
View
A
Retailer 7
-
$2,300 AUD
View
Retailer 8
-
$2,393 AUD
View
Price last confirmed 8 days ago
A
Retailer 9
-
$2,433 AUD
View
A
Retailer 10
-
$2,467 AUD
View
A
Retailer 11
-
$2,492 AUD
View
Retailer 12
-
$2,796 AUD
View
Price last confirmed 16 days ago
A
Retailer 13
-
$2,848 AUD
View
A
Retailer 14
-
$2,936 AUD
View
B+
Retailer 15
-
$3,173 AUD
View
Retailer 16
-
$3,454 AUD
View
Price last confirmed 32 days ago
B+
Retailer 17
-
$3,963 AUD
View
Retailer 18
-
$4,577 AUD
View
Price last confirmed 8 days ago
Most Expensive
NZ Jewellers
1475f44d-ed06-45e5-9114-c8eb2b73d3a0 · Sep 29
$6,928 AUD
$4,760 USD
View
Price last confirmed 37 days ago
18 more retailers have this diamond
Prices start from $1,899 AUDSave up to $2,064 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
1.01ct Heart
$1,899 AUD