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Heart|Natural|GIA

0.81ct E SI1 Heart Natural Diamond

EX • E/SI1 • GIA 3565280189

Certificate GIA 3565280189

Diamond specifications and retailer prices

From $1,552 AUD
$1,090 USD
As of October 30, 2026
Save $270 AUD (15%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $1,822 AUD at Blue Nile · As of October 29, 2026
View at Blue Nile

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 3565280189. Listed at 4 retailers as of October 29, 2026, with prices from $1,552 to $1,822, a $270 spread on the same certified stone. Blue Nile lists it at $1,822. 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
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 3565280189
Dimensions6.08 × 6.37 × 3.64 mm
L/W Ratio1.05
Culet sizeNone
Key to symbols
Twinning Wisp, Crystal
Top View
6.08 mm6.37 mm0.81 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 3565280189
Side View
Table 57.0%CrownGirdle: MED-ETKPavilionCulet: NoneDepth 57.2%

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: $1,822 AUD|Low: $1,552 AUD|High: $1,844 AUD|Avg: $1,672 AUD|-1.2%
Blue Nile
Retailer 2
Retailer 3
Retailer 4
October 30, 2026
Retailer 3$1,552 AUD
Retailer 2$1,660 AUD
Retailer 4$1,674 AUD
Blue Nile$1,822 AUD

39 data points across 4 retailers

4 retailers$1,552 AUD to $1,822 AUD

A
Cheapest Retailer
-
$1,552 AUD
$1,090 USD
A
Retailer 2
-
$1,660 AUD
£918 GBP
View
A
Retailer 3
-
$1,674 AUD
SGD 1,589 SGD
View
Most Expensive
B+
Blue Nile
30171686 · Oct 29
$1,822 AUD
$1,280 USD
View
3 more retailers have this diamond
Prices start from $1,552 AUDSave up to $270 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
$1,552 AUD