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Heart|Natural|GIA

0.91ct F SI1 Heart Natural Diamond

EX • F/SI1 • GIA 7542688363

Certificate GIA 7542688363

Diamond specifications and retailer prices

From $1,370 AUD
HK$7,500 HKD
As of November 1, 2026
Save $2,028 AUD (60%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $5,070 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 F 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 7542688363. Listed at 16 retailers as of November 1, 2026, with a 148% 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
F
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle42.5°
OriginNatural
Grading LabGIA
CertificateGIA 7542688363
Dimensions5.68 × 6.63 × 4.18 mm
L/W Ratio1.17
Girdle conditionFaceted
Top View
5.68 mm6.63 mm0.91 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7542688363
Side View
Table 59.0%CrownGirdle: THN-THKPavilion 42.5°Culet: NoneDepth 63.0%

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: Nov 1
Current: $1,849 AUD|Low: $1,370 AUD|High: $3,577 AUD|Avg: $2,189 AUD|-4.4%
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
November 1, 2026
Retailer 6$1,370 AUD
Retailer 11$1,712 AUD
Retailer 9$1,752 AUD
Retailer 1$1,849 AUD
Retailer 2$1,882 AUD
Retailer 8$1,882 AUD
Retailer 10$1,898 AUD
Retailer 13$1,912 AUD
Retailer 4$1,963 AUD
Retailer 5$2,576 AUD
Retailer 12$2,805 AUD
Retailer 3$2,957 AUD
Retailer 7$3,398 AUD

29 data points across 13 retailers

16 retailers$1,370 AUD to $3,398 AUD

A
Cheapest Retailer
-
$1,370 AUD
HK$7,500 HKD
A
Retailer 2
-
$1,712 AUD
$1,200 USD
View
Final sale: no returns
A
Retailer 3
-
$1,752 AUD
€1,169 EUR
View
A
Retailer 4
-
$1,849 AUD
$1,296 USD
View
A
Retailer 5
-
$1,882 AUD
$1,319 USD
View
A
Retailer 6
-
$1,882 AUD
£1,039 GBP
View
A
Retailer 7
-
$1,898 AUD
$1,330 USD
View
A
Retailer 8
-
$1,912 AUD
$1,340 USD
View
Retailer 9
-
$1,963 AUD
SGD 1,859 SGD
View
Price last confirmed 10 days ago
Retailer 10
-
$2,506 AUD
£1,383 GBP
View
Price last confirmed 37 days ago
Retailer 11
-
$2,576 AUD
View
Price last confirmed 28 days ago
B+
Retailer 12
-
$2,623 AUD
View
B+
Retailer 13
-
$2,805 AUD
ZAR 31,754 ZAR
View
Retailer 14
-
$2,957 AUD
$2,072 USD
View
Price last confirmed 10 days ago
B
Retailer 15
-
$3,398 AUD
£1,875 GBP
View
Most Expensive
NZ Jewellers
81e1e335-e678-4bf7-a348-f7949c2b4e6a · Sep 25
$5,070 AUD
$3,553 USD
View
Price last confirmed 38 days ago
15 more retailers have this diamond
Prices start from $1,370 AUDSave up to $2,028 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
$1,370 AUD