Heart|Natural|GIA

0.91ct E SI2 Heart Natural Diamond

EX • E/SI2 • GIA 6445586417

Certificate GIA 6445586417

Diamond specifications and retailer prices

From $2,111 AUD
$1,483 USD
As of October 28, 2026
Save $1,010 AUD (32%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $5,583 AUD at NZ Jewellers · As of September 30, 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 6445586417. Listed at 7 retailers as of October 28, 2026, with a 48% 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
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.09°
Pavilion angle37.56°
OriginNatural
Grading LabGIA
CertificateGIA 6445586417
Dimensions6.47 × 5.88 × 3.91 mm
L/W Ratio1.10
Top View
6.47 mm5.88 mm0.91 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6445586417
Side View
Table 59.0%Crown 40.09°Girdle: THN-ETKPavilion 37.56°Culet: NoneDepth 60.5%

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: Oct 28
Current: $3,121 AUD|Low: $1,805 AUD|High: $3,121 AUD|Avg: $2,235 AUD|+0.5%
Retailer 1
Retailer 2
Retailer 3
October 29, 2026
Retailer 3$1,805 AUD
Retailer 2$2,111 AUD
Retailer 1$3,121 AUD

6 data points across 3 retailers

7 retailers$2,111 AUD to $3,121 AUD

A
Cheapest Retailer
-
$2,111 AUD
$1,483 USD
Final sale: no returns
B+
Retailer 2
-
$2,289 AUD
$1,608 USD
View
Price last confirmed 21 days ago
B+
Retailer 3
-
$2,289 AUD
$1,608 USD
View
Price last confirmed 21 days ago
B+
Retailer 4
-
$2,394 AUD
$1,682 USD
View
Price last confirmed 28 days ago
B+
Retailer 5
-
$2,640 AUD
$1,855 USD
View
Price last confirmed 30 days ago
B+
Retailer 6
-
$3,121 AUD
€2,088 EUR
View
Most Expensive
B
NZ Jewellers
396dcfda-1951-41ea-8a2b-f6024b195a9b · Sep 30
$5,583 AUD
$3,922 USD
View
Price last confirmed 29 days ago
6 more retailers have this diamond
Prices start from $2,111 AUDSave up to $1,010 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
$2,111 AUD