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Heart|Natural|GIA

0.81ct F SI1 Heart Natural Diamond

EX • F/SI1 • GIA 6561484679

Certificate GIA 6561484679

Diamond specifications and retailer prices

From $1,077 AUD
SGD 1,020 SGD
As of October 31, 2026
Save $718 AUD (40%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $1,958 AUD at Wholesale Diamonds Direct · As of October 27, 2026
View at Wholesale Diamonds Direct

About this 0.81ct natural heart diamond

This 0.81ct natural heart sits in the just-under-one-carat band, graded F 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 6561484679. Listed at 11 retailers as of October 31, 2026, with a 67% 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
F
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle36.98°
OriginNatural
Grading LabGIA
CertificateGIA 6561484679
Dimensions5.39 × 5.97 × 3.26 mm
L/W Ratio1.11
Culet sizeNone
Top View
5.39 mm5.97 mm0.81 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6561484679
Side View
Table 57.0%Crown 36.98°Girdle: THK-ETKPavilionCulet: NoneDepth 54.6%

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: Oct 31
Current: $1,373 AUD|Low: $1,077 AUD|High: $1,958 AUD|Avg: $1,433 AUD|+4.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Wholesale Diamonds Direct
November 3, 2026
Retailer 6$1,077 AUD
Retailer 8$1,178 AUD
Retailer 5$1,249 AUD
Retailer 2$1,284 AUD
Retailer 7$1,308 AUD
Retailer 10$1,317 AUD
Retailer 1$1,373 AUD
Retailer 4$1,406 AUD
Retailer 3$1,717 AUD
Retailer 9$1,795 AUD
Wholesale Diamonds Direct$1,958 AUD

32 data points across 11 retailers

11 retailers$1,077 AUD to $1,795 AUD

A
Cheapest Retailer
-
$1,077 AUD
SGD 1,020 SGD
A
Retailer 2
-
$1,178 AUD
$826 USD
View
A
Retailer 3
-
$1,249 AUD
$875 USD
View
A
Retailer 4
-
$1,284 AUD
SGD 1,216 SGD
View
A
Retailer 5
-
$1,308 AUD
$917 USD
View
A
Retailer 6
-
$1,317 AUD
$923 USD
View
A
Retailer 7
-
$1,373 AUD
£758 GBP
View
A
Retailer 8
-
$1,406 AUD
£776 GBP
View
B+
Retailer 9
-
$1,717 AUD
€1,146 EUR
View
B+
Retailer 10
-
$1,795 AUD
$1,258 USD
View
Most Expensive
Wholesale Diamonds Direct
570927839 · Oct 27
$1,958 AUD
$1,372 USD
View
Price last confirmed 7 days ago
10 more retailers have this diamond
Prices start from $1,077 AUDSave up to $718 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
$1,077 AUD