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Heart|Natural|GIA

0.91ct E SI2 Heart Natural Diamond

ID • E/SI2 • GIA 1557583007

Certificate GIA 1557583007

Diamond specifications and retailer prices

From $1,439 AUD
HK$7,900 HKD
As of October 29, 2026
Save $1,413 AUD (50%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $5,030 AUD at NZ Jewellers · As of September 25, 2026
View at NZ Jewellers

About this 0.91ct natural heart diamond

This 0.91ct natural heart sits in the just-under-one-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 1557583007. Listed at 10 retailers as of October 23, 2026, with a 98% 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

0.91
Carat
E
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1557583007
Dimensions5.71 × 6.78 × 3.91 mm
L/W Ratio1.19
Girdle conditionFaceted
Top View
5.71 mm6.78 mm0.91 ctE / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1557583007
Side View
Table 58.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 57.6%

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 29
Current: $1,876 AUD|Low: $1,403 AUD|High: $3,715 AUD|Avg: $2,350 AUD|-4.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 29, 2026
Retailer 4$1,439 AUD
Retailer 8$1,813 AUD
Retailer 3$1,845 AUD
Retailer 1$1,876 AUD
Retailer 6$1,893 AUD
Retailer 7$2,014 AUD
Retailer 10$2,478 AUD
Retailer 5$2,852 AUD
Retailer 2$3,301 AUD
Retailer 9$3,634 AUD

35 data points across 10 retailers

10 retailers$1,439 AUD to $2,852 AUD

A
Cheapest Retailer
-
$1,439 AUD
HK$7,900 HKD
A
Retailer 2
-
$1,813 AUD
$1,274 USD
View
Final sale: no returns
A
Retailer 3
-
$1,845 AUD
$1,296 USD
View
A
Retailer 4
-
$1,876 AUD
£1,038 GBP
View
A
Retailer 5
-
$1,893 AUD
$1,330 USD
View
A
Retailer 6
-
$2,014 AUD
SGD 1,912 SGD
View
B+
Retailer 7
-
$2,478 AUD
View
B+
Retailer 8
-
$2,852 AUD
$2,004 USD
View
B
Retailer 9
-
$3,634 AUD
£2,010 GBP
View
Price last confirmed 21 days ago
Most Expensive
B
NZ Jewellers
e9e6953d-88ee-467d-ba45-9bed2ac7fc3d · Sep 25
$5,030 AUD
$3,534 USD
View
Price last confirmed 34 days ago
9 more retailers have this diamond
Prices start from $1,439 AUDSave up to $1,413 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
0.91ct Heart
$1,439 AUD