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Heart|Natural|GIA

0.81ct D SI2 Heart Natural Diamond

EX • D/SI2 • GIA 6441896539

Certificate GIA 6441896539

Diamond specifications and retailer prices

From £799 GBP
$1,070 USD
As of October 31, 2026
Save £796 GBP (50%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £1,594 GBP at MOH London · As of October 29, 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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6441896539. Listed at 9 retailers as of October 29, 2026, with prices from £799 to £1,594, a £796 spread on the same certified stone. MOH London lists it at £1,594. 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
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle43.48°
Pavilion angle38.2°
OriginNatural
Grading LabGIA
CertificateGIA 6441896539
Dimensions5.52 × 6.45 × 3.78 mm
L/W Ratio1.17
Top View
5.52 mm6.45 mm0.81 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6441896539
Side View
Table 61.0%Crown 43.48°Girdle: STK-VTKPavilion 38.2°Culet: NoneDepth 58.6%

Caratlytics Score

How it works →
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: £1,594 GBP|Low: £799 GBP|High: £1,594 GBP|Avg: £1,141 GBP|+0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 9£799 GBP
Retailer 2£866 GBP
Retailer 8£866 GBP
Retailer 5£988 GBP
Retailer 6£999 GBP
Retailer 7£1,012 GBP
Retailer 11£1,106 GBP
Retailer 4£1,149 GBP
Retailer 10£1,184 GBP
Retailer 3£1,467 GBP
MOH London£1,594 GBP

15 data points across 11 retailers

9 retailers£799 GBP to £1,594 GBP

A
Cheapest Retailer
-
£799 GBP
$1,070 USD
Final sale: no returns
Retailer 2
-
£866 GBP
$1,160 USD
View
Price last confirmed 7 days ago
A
Retailer 3
-
£866 GBP
$1,160 USD
View
B+
Retailer 4
-
£988 GBP
View
B+
Retailer 5
-
£999 GBP
$1,339 USD
View
A
Retailer 6
-
£1,012 GBP
View
B+
Retailer 7
-
£1,149 GBP
View
B
Retailer 8
-
£1,467 GBP
€1,872 EUR
View
Most Expensive
B
MOH London
5903F61C9 · Oct 29
£1,594 GBP
View
8 more retailers have this diamond
Prices start from £799 GBPSave up to £796 GBP

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
£799 GBP