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Heart|Natural|GIA

0.81ct E SI1 Heart Natural Diamond

EX • E/SI1 • GIA 3555378724

Certificate GIA 3555378724

Diamond specifications and retailer prices

From $1,312 AUD
HK$7,200 HKD
As of October 30, 2026
Save $389 AUD (23%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $4,249 AUD at NZ Jewellers · As of September 25, 2026
View at NZ Jewellers

About this 0.81ct natural heart diamond

This 0.81ct natural heart sits in the just-under-one-carat band, graded E 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 3555378724. Listed at 13 retailers as of October 30, 2026, with a 30% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

0.81
Carat
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 3555378724
Dimensions5.65 × 6.60 × 3.86 mm
L/W Ratio1.17
Girdle conditionFaceted
Top View
5.65 mm6.60 mm0.81 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 3555378724
Side View
Table 57.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 58.5%

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 30
Current: $1,701 AUD|Low: $1,257 AUD|High: $3,229 AUD|Avg: $1,972 AUD|-9.7%
Retailer 1
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
October 30, 2026
Retailer 10$1,312 AUD
Retailer 13$1,547 AUD
Retailer 7$1,572 AUD
Retailer 8$1,617 AUD
Retailer 9$1,668 AUD
Retailer 1$1,701 AUD
Retailer 12$1,833 AUD
Retailer 4$1,858 AUD
Retailer 3$1,946 AUD
Retailer 2$2,024 AUD
Retailer 6$2,195 AUD
Retailer 5$2,487 AUD
Retailer 11$2,542 AUD
Retailer 14$3,102 AUD

33 data points across 14 retailers

13 retailers$1,312 AUD to $1,701 AUD

A
Cheapest Retailer
-
$1,312 AUD
HK$7,200 HKD
A
Retailer 2
-
$1,547 AUD
$1,087 USD
View
Final sale: no returns
A
Retailer 3
-
$1,572 AUD
€1,052 EUR
View
A
Retailer 4
-
$1,617 AUD
$1,136 USD
View
A
Retailer 5
-
$1,668 AUD
$1,172 USD
View
A
Retailer 6
-
$1,701 AUD
£941 GBP
View
Retailer 7
-
$1,833 AUD
SGD 1,740 SGD
View
Price last confirmed 7 days ago
Retailer 8
-
$2,024 AUD
£1,119 GBP
View
Price last confirmed 21 days ago
Retailer 9
-
$2,195 AUD
View
Price last confirmed 26 days ago
Retailer 10
-
$2,487 AUD
ZAR 28,227 ZAR
View
Price last confirmed 26 days ago
Retailer 11
-
$2,542 AUD
$1,786 USD
View
Price last confirmed 7 days ago
Retailer 12
-
$3,102 AUD
£1,716 GBP
View
Price last confirmed 22 days ago
Most Expensive
NZ Jewellers
49942fc4-5d3b-44b1-8267-ff74422abb4f · Sep 25
$4,249 AUD
$2,985 USD
View
Price last confirmed 35 days ago
12 more retailers have this diamond
Prices start from $1,312 AUDSave up to $389 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
0.81ct Heart
$1,312 AUD