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Heart|Natural|GIA

0.81ct D SI1 Heart Natural Diamond

ID • D/SI1 • GIA 6541804776

Certificate GIA 6541804776

Diamond specifications and retailer prices

From €1,000 EUR
$1,117 USD
As of October 31, 2026
Save €1,066 EUR (52%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: €2,496 EUR 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

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: €1,204 EUR|Low: €727 EUR|High: €2,066 EUR|Avg: €1,271 EUR|-3.1%
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
November 1, 2026
Retailer 12€1,000 EUR
Retailer 3€1,015 EUR
Retailer 5€1,023 EUR
Retailer 9€1,038 EUR
Retailer 8€1,152 EUR
Retailer 6€1,195 EUR
Retailer 1€1,204 EUR
Retailer 7€1,236 EUR
Retailer 2€1,310 EUR
Retailer 4€1,338 EUR
Retailer 10€1,514 EUR
Retailer 11€1,603 EUR
Retailer 13€2,066 EUR

40 data points across 13 retailers

18 retailers€1,000 EUR to €2,066 EUR

A
Cheapest Retailer
-
€1,000 EUR
$1,117 USD
Final sale: no returns
A
Retailer 2
-
€1,015 EUR
$1,134 USD
View
Retailer 3
-
€1,023 EUR
$1,143 USD
View
Price last confirmed 31 days ago
Retailer 4
-
€1,023 EUR
$1,143 USD
View
Price last confirmed 16 days ago
A
Retailer 5
-
€1,038 EUR
$1,160 USD
View
Retailer 6
-
€1,062 EUR
$1,187 USD
View
Price last confirmed 31 days ago
A
Retailer 7
-
€1,152 EUR
$1,287 USD
View
Retailer 8
-
€1,181 EUR
$1,319 USD
View
Price last confirmed 56 days ago
Retailer 9
-
€1,181 EUR
$1,319 USD
View
Price last confirmed 33 days ago
B+
Retailer 10
-
€1,195 EUR
$1,335 USD
View
A
Retailer 11
-
€1,204 EUR
$1,345 USD
View
B+
Retailer 12
-
€1,236 EUR
£1,088 GBP
View
B+
Retailer 13
-
€1,310 EUR
£1,153 GBP
View
Retailer 14
-
€1,338 EUR
A$2,300 AUD
View
Price last confirmed 28 days ago
B+
Retailer 15
-
€1,514 EUR
View
B+
Retailer 16
-
€1,603 EUR
ZAR 28,926 ZAR
View
B
Retailer 17
-
€2,066 EUR
£1,817 GBP
View
Most Expensive
NZ Jewellers
04f28387-8860-40de-bca6-dbb8f13d8be6 · Sep 30
€2,496 EUR
$2,788 USD
View
Price last confirmed 32 days ago
17 more retailers have this diamond
Prices start from €1,000 EURSave up to €1,066 EUR

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
€1,000 EUR