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Heart|Natural|GIA

0.91ct E SI2 Heart Natural Diamond

EX • E/SI2 • GIA 2537718927

Certificate GIA 2537718927

Diamond specifications and retailer prices

From $1,403 AUD
$986 USD
As of October 28, 2026
Save $2,557 AUD (65%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $3,960 AUD at Moon Ocean · As of October 29, 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 E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2537718927. Listed at 12 retailers as of October 28, 2026, with prices from $1,403 to $3,960, a $2,557 spread on the same certified stone. Moon Ocean lists it at $3,960. 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
E
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle39.32°
Pavilion angle39.29°
OriginNatural
Grading LabGIA
CertificateGIA 2537718927
Dimensions5.79 × 6.60 × 3.92 mm
L/W Ratio1.14
Top View
5.79 mm6.60 mm0.91 ctE / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateGIA 2537718927
Side View
Table 56.0%Crown 39.32°Girdle: STK-ETKPavilion 39.29°Culet: NoneDepth 59.4%

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: Oct 28
Current: $3,960 AUD|Low: $1,332 AUD|High: $4,135 AUD|Avg: $2,138 AUD|-3.8%
Moon Ocean
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 29, 2026
Retailer 9$1,403 AUD
Retailer 11$1,456 AUD
Retailer 5$1,522 AUD
Retailer 7$1,522 AUD
Retailer 6$1,580 AUD
Retailer 10$1,751 AUD
Retailer 12$1,777 AUD
Retailer 2$1,789 AUD
Retailer 4$1,819 AUD
Retailer 8$2,802 AUD
Retailer 3$3,711 AUD
Moon Ocean$3,960 AUD

42 data points across 12 retailers

12 retailers$1,403 AUD to $3,960 AUD

A
Cheapest Retailer
-
$1,403 AUD
$986 USD
Final sale: no returns
A
Retailer 2
-
$1,456 AUD
$1,023 USD
View
A
Retailer 3
-
$1,522 AUD
$1,069 USD
View
A
Retailer 4
-
$1,522 AUD
$1,069 USD
View
A
Retailer 5
-
$1,580 AUD
$1,110 USD
View
A
Retailer 6
-
$1,751 AUD
$1,230 USD
View
A
Retailer 7
-
$1,777 AUD
£983 GBP
View
A
Retailer 8
-
$1,789 AUD
£990 GBP
View
A
Retailer 9
-
$1,819 AUD
$1,278 USD
View
B+
Retailer 10
-
$2,802 AUD
£1,550 GBP
View
B
Retailer 11
-
$3,711 AUD
$2,607 USD
View
Most Expensive
B
Moon Ocean
NVN-6C8419425-927 · Oct 29
$3,960 AUD
£2,191 GBP
View
11 more retailers have this diamond
Prices start from $1,403 AUDSave up to $2,557 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
$1,403 AUD