CaratHunter
Plans
Heart|Natural|GIA

0.91ct F SI2 Heart Natural Diamond

GD • F/SI2 • GIA 6455988523

Certificate GIA 6455988523

Diamond specifications and retailer prices

From $2,236 AUD
$1,567 USD
As of October 29, 2026
Save $3,412 AUD (60%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $5,648 AUD at Moon Ocean · As of November 2, 2026
View at Moon Ocean

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 SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6455988523. Listed at 12 retailers as of November 1, 2026, with prices from $2,236 to $5,648, a $3,412 spread on the same certified stone. Moon Ocean lists it at $5,648. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.91
Carat
F
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6455988523
Dimensions6.75 × 6.23 × 3.58 mm
L/W Ratio1.08
Top View
6.75 mm6.23 mm0.91 ctF / SI2
OriginNatural
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 6455988523
Side View
Table 56.0%CrownGirdle: THN-STKPavilionCulet: NoneDepth 57.4%

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: Oct 29
Current: $5,648 AUD|Low: $1,961 AUD|High: $5,725 AUD|Avg: $3,218 AUD|-1.2%
Moon Ocean
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 3, 2026
Retailer 5$1,961 AUD
Retailer 2$2,443 AUD
Retailer 6$2,670 AUD
Retailer 3$3,052 AUD
Retailer 4$3,824 AUD
Moon Ocean$5,648 AUD

44 data points across 6 retailers

12 retailers$2,236 AUD to $5,648 AUD

B+
Cheapest Retailer
-
$2,236 AUD
$1,567 USD
B+
Retailer 2
-
$2,236 AUD
$1,567 USD
View
B
Retailer 3
-
$2,339 AUD
$1,639 USD
View
B
Retailer 4
-
$2,430 AUD
$1,703 USD
View
B
Retailer 5
-
$2,443 AUD
£1,348 GBP
View
B
Retailer 6
-
$2,580 AUD
$1,808 USD
View
Retailer 7
-
$2,670 AUD
£1,473 GBP
View
Price last confirmed 37 days ago
Retailer 8
-
$2,695 AUD
£1,487 GBP
View
Price last confirmed 37 days ago
B
Retailer 9
-
$3,052 AUD
€2,037 EUR
View
B
Retailer 10
-
$3,824 AUD
£2,110 GBP
View
C
Retailer 11
-
$5,452 AUD
$3,821 USD
View
Most Expensive
C
Moon Ocean
NVN-A929EEB78-523 · Nov 2
$5,648 AUD
£3,117 GBP
View
11 more retailers have this diamond
Prices start from $2,236 AUDSave up to $3,412 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
$2,236 AUD