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Heart|Natural|GIA

0.81ct D SI1 Heart Natural Diamond

EX • D/SI1 • GIA 2557388656

Certificate GIA 2557388656

Diamond specifications and retailer prices

From £1,090 GBP
$1,460 USD
As of October 31, 2026
Save £821 GBP (43%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £1,911 GBP 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 October 31, 2026, with prices from £1,090 to £1,911, a £821 spread on the same certified stone. MOH London lists it at £1,911. 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: Oct 31
Current: £1,911 GBP|Low: £778 GBP|High: £1,934 GBP|Avg: £1,210 GBP|-1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 1, 2026
Retailer 3£813 GBP
Retailer 6£856 GBP
Retailer 4£1,090 GBP
Retailer 2£1,216 GBP
Retailer 7£1,315 GBP
Retailer 5£1,423 GBP
MOH London£1,911 GBP

43 data points across 7 retailers

7 retailers£1,090 GBP to £1,911 GBP

Retailer 1
-
£813 GBP
₹103,686 INR
Price last confirmed 9 days ago
Retailer 2
-
£920 GBP
$1,233 USD
View
Price last confirmed 9 days ago
B+
Retailer 3
-
£1,090 GBP
$1,460 USD
View
B+
Retailer 4
-
£1,216 GBP
View
Retailer 5
-
£1,315 GBP
View
Price last confirmed 35 days ago
Retailer 6
-
£1,423 GBP
A$2,934 AUD
View
Price last confirmed 26 days ago
Most Expensive
B
MOH London
F50303162 · Nov 1
£1,911 GBP
View
6 more retailers have this diamond
Prices start from £1,090 GBPSave up to £821 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.

B+
0.81ct Heart
£1,090 GBP