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Heart|Natural|GIA

0.81ct I IF Heart Natural Diamond

EX • I/IF • GIA 6491020554

Certificate GIA 6491020554

Diamond specifications and retailer prices

From £755 GBP
As of November 6, 2026
Save £1,127 GBP (60%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £1,882 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 I colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6491020554. Listed at 11 retailers as of November 1, 2026, with prices from £755 to £1,882, a £1,127 spread on the same certified stone. MOH London lists it at £1,882. Flawless clarity in sub-one-carat stones is rarely visible to the naked eye over VS1, so you are paying a meaningful premium for grade rather than appearance.

The 4Cs

0.81
Carat
I
Colour
IF
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.97°
Pavilion angle45.14°
OriginNatural
Grading LabGIA
CertificateGIA 6491020554
Dimensions5.58 × 6.55 × 3.91 mm
L/W Ratio1.17
Top View
5.58 mm6.55 mm0.81 ctI / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6491020554
Side View
Table 60.0%Crown 35.97°Girdle: STK-THKPavilion 45.14°Culet: NoneDepth 59.7%

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: Nov 6
Current: £1,882 GBP|Low: £746 GBP|High: £1,956 GBP|Avg: £1,210 GBP|-0.8%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 5, 2026
Retailer 6£755 GBP
Retailer 5£938 GBP
Retailer 2£946 GBP
Retailer 9£952 GBP
Retailer 8£1,028 GBP
Retailer 10£1,081 GBP
Retailer 7£1,142 GBP
Retailer 11£1,281 GBP
Retailer 3£1,376 GBP
Retailer 4£1,520 GBP
MOH London£1,882 GBP

41 data points across 11 retailers

11 retailers£755 GBP to £1,882 GBP

A
Cheapest Retailer
-
£755 GBP
A
Retailer 2
-
£938 GBP
View
A
Retailer 3
-
£946 GBP
View
A
Retailer 4
-
£952 GBP
View
Retailer 5
-
£1,028 GBP
View
Price last confirmed 9 days ago
A
Retailer 6
-
£1,081 GBP
View
Retailer 7
-
£1,142 GBP
View
Price last confirmed 9 days ago
B+
Retailer 8
-
£1,281 GBP
View
Retailer 9
-
£1,376 GBP
View
Price last confirmed 33 days ago
B+
Retailer 10
-
£1,520 GBP
View
Most Expensive
B
MOH London
379DF38B5 · Nov 1
£1,882 GBP
View
10 more retailers have this diamond
Prices start from £755 GBPSave up to £1,127 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
£755 GBP