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Heart|Natural|GIA

0.91ct F SI1 Heart Natural Diamond

EX • F/SI1 • GIA 7556888216

Certificate GIA 7556888216

Diamond specifications and retailer prices

From $1,388 AUD
HK$7,600 HKD
As of November 1, 2026
Save $2,173 AUD (61%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $5,359 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 7556888216. Listed at 16 retailers as of November 1, 2026, with a 157% 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
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7556888216
Dimensions5.71 × 6.83 × 4.10 mm
L/W Ratio1.20
Girdle conditionFaceted
Top View
5.71 mm6.83 mm0.91 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 7556888216
Side View
Table 56.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 60.1%

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 1
Current: $1,913 AUD|Low: $1,388 AUD|High: $3,737 AUD|Avg: $2,271 AUD|-3.6%
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 2, 2026
Retailer 7$1,388 AUD
Retailer 9$1,776 AUD
Retailer 11$1,795 AUD
Retailer 6$1,878 AUD
Retailer 1$1,913 AUD
Retailer 2$1,925 AUD
Retailer 13$1,926 AUD
Retailer 10$1,983 AUD
Retailer 4$2,009 AUD
Retailer 5$2,751 AUD
Retailer 12$2,957 AUD
Retailer 3$3,021 AUD
Retailer 8$3,561 AUD

29 data points across 13 retailers

16 retailers$1,388 AUD to $3,561 AUD

A
Cheapest Retailer
-
$1,388 AUD
HK$7,600 HKD
A
Retailer 2
-
$1,776 AUD
€1,185 EUR
View
B+
Retailer 3
-
$1,795 AUD
$1,258 USD
View
Final sale: no returns
A
Retailer 4
-
$1,878 AUD
$1,316 USD
View
A
Retailer 5
-
$1,913 AUD
£1,056 GBP
View
A
Retailer 6
-
$1,925 AUD
$1,349 USD
View
A
Retailer 7
-
$1,926 AUD
$1,350 USD
View
A
Retailer 8
-
$1,983 AUD
$1,390 USD
View
Retailer 9
-
$2,009 AUD
SGD 1,903 SGD
View
Price last confirmed 11 days ago
B+
Retailer 10
-
$2,623 AUD
View
Retailer 11
-
$2,649 AUD
£1,462 GBP
View
Price last confirmed 37 days ago
Retailer 12
-
$2,751 AUD
View
Price last confirmed 28 days ago
B+
Retailer 13
-
$2,957 AUD
ZAR 33,482 ZAR
View
Retailer 14
-
$3,021 AUD
$2,117 USD
View
Price last confirmed 10 days ago
B
Retailer 15
-
$3,561 AUD
£1,965 GBP
View
Most Expensive
NZ Jewellers
f460a551-5ddd-4b06-aacf-b983d9ec371e · Sep 25
$5,359 AUD
$3,756 USD
View
Price last confirmed 38 days ago
15 more retailers have this diamond
Prices start from $1,388 AUDSave up to $2,173 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
$1,388 AUD