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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 $1,794 NZD
HK$7,900 HKD
As of October 30, 2026
Save $1,762 NZD (50%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $6,270 NZD 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 30
Current: $2,345 NZD|Low: $1,749 NZD|High: $4,631 NZD|Avg: $2,927 NZD|-3.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 30, 2026
Retailer 4$1,794 NZD
Retailer 8$2,260 NZD
Retailer 3$2,299 NZD
Retailer 1$2,345 NZD
Retailer 6$2,360 NZD
Retailer 7$2,510 NZD
Retailer 10$3,089 NZD
Retailer 5$3,556 NZD
Retailer 2$4,115 NZD
Retailer 9$4,529 NZD

35 data points across 10 retailers

10 retailers$1,794 NZD to $3,556 NZD

A
Cheapest Retailer
-
$1,794 NZD
HK$7,900 HKD
A
Retailer 2
-
$2,260 NZD
$1,274 USD
View
Final sale: no returns
A
Retailer 3
-
$2,299 NZD
$1,296 USD
View
A
Retailer 4
-
$2,345 NZD
£1,041 GBP
View
A
Retailer 5
-
$2,360 NZD
$1,330 USD
View
Retailer 6
-
$2,510 NZD
SGD 1,912 SGD
View
Price last confirmed 7 days ago
B+
Retailer 7
-
$3,089 NZD
A$2,678 AUD
View
B+
Retailer 8
-
$3,556 NZD
$2,004 USD
View
Retailer 9
-
$4,529 NZD
£2,010 GBP
View
Price last confirmed 22 days ago
Most Expensive
NZ Jewellers
e9e6953d-88ee-467d-ba45-9bed2ac7fc3d · Sep 25
$6,270 NZD
$3,534 USD
View
Price last confirmed 35 days ago
9 more retailers have this diamond
Prices start from $1,794 NZDSave up to $1,762 NZD

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
$1,794 NZD