CaratHunter
Plans
Heart|Natural|GIA

0.81ct D SI1 Heart Natural Diamond

EX • D/SI1 • GIA 2557388656

Certificate GIA 2557388656

Diamond specifications and retailer prices

From $2,078 AUD
$1,460 USD
As of November 2, 2026
Save $1,566 AUD (43%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $3,645 AUD at MOH London · As of November 1, 2026
View at MOH London

About this 0.81ct natural heart diamond

This 0.81ct natural heart sits in the just-under-one-carat band, graded D 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 2557388656. Listed at 7 retailers as of November 1, 2026, with prices from $2,078 to $3,645, a $1,566 spread on the same certified stone. MOH London lists it at $3,645. 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
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2557388656
Dimensions5.68 × 6.46 × 3.76 mm
L/W Ratio1.14
Key to symbols
Feather, Crystal, Cloud
Top View
5.68 mm6.46 mm0.81 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2557388656
Side View
Table 59.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 58.2%

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: Nov 2
Current: $3,645 AUD|Low: $1,485 AUD|High: $3,688 AUD|Avg: $2,314 AUD|-1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 2, 2026
Retailer 3$1,550 AUD
Retailer 6$1,633 AUD
Retailer 4$2,078 AUD
Retailer 2$2,320 AUD
Retailer 7$2,508 AUD
Retailer 5$2,715 AUD
MOH London$3,645 AUD

43 data points across 7 retailers

7 retailers$2,078 AUD to $3,645 AUD

Retailer 1
-
$1,550 AUD
₹103,686 INR
Price last confirmed 10 days ago
Retailer 2
-
$1,755 AUD
$1,233 USD
View
Price last confirmed 9 days ago
B+
Retailer 3
-
$2,078 AUD
$1,460 USD
View
B+
Retailer 4
-
$2,320 AUD
£1,283 GBP
View
Retailer 5
-
$2,508 AUD
£1,387 GBP
View
Price last confirmed 36 days ago
Retailer 6
-
$2,715 AUD
View
Price last confirmed 27 days ago
Most Expensive
B
MOH London
F50303162 · Nov 1
$3,645 AUD
£2,016 GBP
View
6 more retailers have this diamond
Prices start from $2,078 AUDSave up to $1,566 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+
0.81ct Heart
$2,078 AUD