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Heart|Natural|GIA

0.91ct F SI1 Heart Natural Diamond

EX • F/SI1 • GIA 6551101722

Certificate GIA 6551101722

Diamond specifications and retailer prices

From $2,102 AUD
$1,473 USD
As of November 1, 2026
Save $3,743 AUD (64%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $5,845 AUD at NZ Jewellers · As of October 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 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 6551101722. Listed at 15 retailers as of October 30, 2026, with prices from $2,102 to $5,845, a $3,743 spread on the same certified stone. NZ Jewellers lists it at $5,845. 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
Crown angle38.61°
Pavilion angle41.52°
OriginNatural
Grading LabGIA
CertificateGIA 6551101722
Dimensions5.68 × 6.62 × 3.94 mm
L/W Ratio1.17
Top View
5.68 mm6.62 mm0.91 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6551101722
Side View
Table 59.0%Crown 38.61°Girdle: THK-VTKPavilion 41.52°Culet: NoneDepth 59.4%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $5,845 AUD|Low: $2,028 AUD|High: $5,845 AUD|Avg: $3,119 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
November 2, 2026
Retailer 4$2,102 AUD
Retailer 13$2,183 AUD
Retailer 12$2,210 AUD
Retailer 3$2,396 AUD
Retailer 5$2,396 AUD
Retailer 14$2,497 AUD
Retailer 11$2,507 AUD
Retailer 9$2,685 AUD
Retailer 6$2,765 AUD
Retailer 15$2,905 AUD
Retailer 7$3,204 AUD
Retailer 10$3,535 AUD
Retailer 2$4,199 AUD
Retailer 8$4,611 AUD
NZ Jewellers$5,845 AUD

42 data points across 15 retailers

15 retailers$2,102 AUD to $5,845 AUD

B+
Cheapest Retailer
-
$2,102 AUD
$1,473 USD
B+
Retailer 2
-
$2,183 AUD
$1,530 USD
View
B+
Retailer 3
-
$2,210 AUD
$1,549 USD
View
Final sale: no returns
B+
Retailer 4
-
$2,396 AUD
$1,679 USD
View
B+
Retailer 5
-
$2,396 AUD
$1,679 USD
View
B+
Retailer 6
-
$2,497 AUD
$1,750 USD
View
B+
Retailer 7
-
$2,507 AUD
$1,757 USD
View
B+
Retailer 8
-
$2,685 AUD
£1,482 GBP
View
B+
Retailer 9
-
$2,765 AUD
$1,938 USD
View
B+
Retailer 10
-
$2,905 AUD
$2,036 USD
View
Retailer 11
-
$3,204 AUD
View
Price last confirmed 28 days ago
B
Retailer 12
-
$3,535 AUD
ZAR 40,017 ZAR
View
B
Retailer 13
-
$4,199 AUD
£2,317 GBP
View
B
Retailer 14
-
$4,611 AUD
£2,545 GBP
View
Most Expensive
B
NZ Jewellers
2df41225-1307-453d-9b46-2a8edd1b8f93 · Oct 30
$5,845 AUD
$4,096 USD
View
14 more retailers have this diamond
Prices start from $2,102 AUDSave up to $3,743 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.

B+
0.91ct Heart
$2,102 AUD