Heart|Natural|GIA

0.81ct D SI1 Heart Natural Diamond

ID • D/SI1 • GIA 6541804776

Certificate GIA 6541804776

Diamond specifications and retailer prices

From $1,560 CAD
$1,117 USD
As of October 31, 2026
Save $1,663 CAD (52%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $3,895 CAD at NZ Jewellers · As of September 30, 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 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 6541804776. Listed at 18 retailers as of October 29, 2026, with a 107% 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
D
Color
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.79°
Pavilion angle42.33°
OriginNatural
Grading LabGIA
CertificateGIA 6541804776
Dimensions5.76 × 6.31 × 3.87 mm
L/W Ratio1.10
Top View
5.76 mm6.31 mm0.81 ctD / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6541804776
Side View
Table 57.0%Crown 36.79°Girdle: Slightly ThickPavilion 42.33°Culet: NoneDepth 61.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $1,620 CAD|Low: $1,134 CAD|High: $3,223 CAD|Avg: $1,969 CAD|-3.3%
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
October 31, 2026
Retailer 9$1,560 CAD
Retailer 3$1,584 CAD
Retailer 5$1,597 CAD
Retailer 1$1,620 CAD
Retailer 2$1,851 CAD
Retailer 7$1,914 CAD
Retailer 12$1,914 CAD
Retailer 13$1,939 CAD
Retailer 11$2,045 CAD
Retailer 4$2,088 CAD
Retailer 6$2,363 CAD
Retailer 8$2,501 CAD
Retailer 10$3,223 CAD

40 data points across 13 retailers

18 retailers$1,560 CAD to $3,223 CAD

A
Cheapest Retailer
-
$1,560 CAD
$1,117 USD
Final sale: no returns
A
Retailer 2
-
$1,584 CAD
$1,134 USD
View
Retailer 3
-
$1,597 CAD
$1,143 USD
View
Price last confirmed 30 days ago
Retailer 4
-
$1,597 CAD
$1,143 USD
View
Price last confirmed 15 days ago
A
Retailer 5
-
$1,620 CAD
$1,160 USD
View
Retailer 6
-
$1,658 CAD
$1,187 USD
View
Price last confirmed 30 days ago
Retailer 7
-
$1,843 CAD
$1,319 USD
View
Price last confirmed 54 days ago
Retailer 8
-
$1,843 CAD
$1,319 USD
View
Price last confirmed 32 days ago
A
Retailer 9
-
$1,851 CAD
$1,325 USD
View
B+
Retailer 10
-
$1,914 CAD
£1,079 GBP
View
B+
Retailer 11
-
$1,914 CAD
$1,370 USD
View
B+
Retailer 12
-
$1,939 CAD
$1,388 USD
View
B+
Retailer 13
-
$2,045 CAD
£1,153 GBP
View
Retailer 14
-
$2,088 CAD
A$2,300 AUD
View
Price last confirmed 27 days ago
B+
Retailer 15
-
$2,363 CAD
€1,611 EUR
View
B+
Retailer 16
-
$2,501 CAD
ZAR 28,926 ZAR
View
B
Retailer 17
-
$3,223 CAD
£1,817 GBP
View
Most Expensive
NZ Jewellers
04f28387-8860-40de-bca6-dbb8f13d8be6 · Sep 30
$3,895 CAD
$2,788 USD
View
Price last confirmed 31 days ago
17 more retailers have this diamond
Prices start from $1,560 CADSave up to $1,663 CAD

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
$1,560 CAD