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Heart|Natural|GIA

0.91ct I SI2 Heart Natural Diamond

EX • I/SI2 • GIA 5556326450

Certificate GIA 5556326450

Diamond specifications and retailer prices

From $1,184 AUD
$830 USD
As of November 1, 2026
Save $2,613 AUD (69%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $3,797 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5556326450. Listed at 15 retailers as of November 1, 2026, with prices from $1,184 to $3,797, a $2,613 spread on the same certified stone. Moon Ocean lists it at $3,797. 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
I
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 5556326450
Dimensions6.65 × 5.58 × 4.03 mm
L/W Ratio1.19
Culet sizeNone
Key to symbols
Feather, Twinning Wisp, Etch Channel, Crystal, Needle, Indented Natural
Top View
6.65 mm5.58 mm0.91 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 5556326450
Side View
Table 58.0%CrownGirdle: Slightly ThickPavilionCulet: NoneDepth 60.6%

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 1
Current: $3,797 AUD|Low: $976 AUD|High: $3,820 AUD|Avg: $1,856 AUD|+0.8%
Moon Ocean
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
Retailer 16
Retailer 17
Retailer 18
November 2, 2026
Retailer 7$1,184 AUD
Retailer 8$1,213 AUD
Retailer 5$1,216 AUD
Retailer 6$1,263 AUD
Retailer 14$1,330 AUD
Retailer 16$1,330 AUD
Retailer 15$1,381 AUD
Retailer 9$1,502 AUD
Retailer 17$1,508 AUD
Retailer 12$1,534 AUD
Retailer 3$1,627 AUD
Retailer 18$1,627 AUD
Retailer 4$1,669 AUD
Retailer 10$1,942 AUD
Retailer 11$2,059 AUD
Retailer 2$2,687 AUD
Retailer 13$3,579 AUD
Moon Ocean$3,797 AUD

27 data points across 18 retailers

15 retailers$1,184 AUD to $3,797 AUD

A
Cheapest Retailer
-
$1,184 AUD
$830 USD
A
Retailer 2
-
$1,213 AUD
$850 USD
View
A
Retailer 3
-
$1,263 AUD
$885 USD
View
A
Retailer 4
-
$1,330 AUD
$932 USD
View
A
Retailer 5
-
$1,330 AUD
$932 USD
View
A
Retailer 6
-
$1,381 AUD
$968 USD
View
A
Retailer 7
-
$1,508 AUD
$1,057 USD
View
A
Retailer 8
-
$1,534 AUD
$1,075 USD
View
A
Retailer 9
-
$1,627 AUD
$1,140 USD
View
A
Retailer 10
-
$1,627 AUD
$1,140 USD
View
A
Retailer 11
-
$1,669 AUD
$1,170 USD
View
B+
Retailer 12
-
$2,059 AUD
€1,374 EUR
View
B+
Retailer 13
-
$2,687 AUD
£1,483 GBP
View
B
Retailer 14
-
$3,579 AUD
$2,508 USD
View
Most Expensive
B
Moon Ocean
NVN-FF42C4091-450 · Nov 2
$3,797 AUD
£2,096 GBP
View
14 more retailers have this diamond
Prices start from $1,184 AUDSave up to $2,613 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
$1,184 AUD