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Heart|Natural|GIA

0.91ct F SI1 Heart Natural Diamond

ID • F/SI1 • GIA 6412283975

Certificate GIA 6412283975

Diamond specifications and retailer prices

From $1,745 AUD
$1,223 USD
As of November 2, 2026
Save $2,907 AUD (62%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $4,652 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 6412283975. Listed at 12 retailers as of October 30, 2026, with prices from $1,745 to $4,652, a $2,907 spread on the same certified stone. NZ Jewellers lists it at $4,652. 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
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6412283975
Dimensions5.59 × 6.55 × 4.23 mm
L/W Ratio1.17
Top View
5.59 mm6.55 mm0.91 ctF / SI1
OriginNatural
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 6412283975
Side View
Table 58.0%CrownGirdle: THN-VTKPavilionCulet: NoneDepth 64.6%

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: Nov 2
Current: $4,652 AUD|Low: $1,745 AUD|High: $4,652 AUD|Avg: $2,494 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 10$1,745 AUD
Retailer 6$1,958 AUD
Retailer 3$2,083 AUD
Retailer 9$2,083 AUD
Retailer 11$2,155 AUD
Retailer 8$2,182 AUD
Retailer 2$2,200 AUD
Retailer 7$2,300 AUD
Retailer 5$2,616 AUD
Retailer 4$3,494 AUD
NZ Jewellers$4,652 AUD

39 data points across 11 retailers

12 retailers$1,745 AUD to $4,652 AUD

A
Cheapest Retailer
-
$1,745 AUD
$1,223 USD
B+
Retailer 2
-
$1,958 AUD
$1,372 USD
View
B+
Retailer 3
-
$2,083 AUD
$1,460 USD
View
B+
Retailer 4
-
$2,083 AUD
$1,460 USD
View
B+
Retailer 5
-
$2,155 AUD
$1,510 USD
View
B+
Retailer 6
-
$2,182 AUD
$1,529 USD
View
B+
Retailer 7
-
$2,200 AUD
£1,214 GBP
View
Retailer 8
-
$2,300 AUD
£1,269 GBP
View
Price last confirmed 37 days ago
B+
Retailer 9
-
$2,616 AUD
CA$2,547 CAD
View
B
Retailer 10
-
$3,141 AUD
CA$3,058 CAD
View
B
Retailer 11
-
$3,494 AUD
£1,928 GBP
View
Most Expensive
B
NZ Jewellers
0b511d34-f01f-47c8-a762-6bc8371bfb2c · Oct 30
$4,652 AUD
$3,260 USD
View
11 more retailers have this diamond
Prices start from $1,745 AUDSave up to $2,907 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
$1,745 AUD