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Heart|Natural|GIA

0.81ct I SI1 Heart Natural Diamond

EX • I/SI1 • GIA 6412487272

Certificate GIA 6412487272

Diamond specifications and retailer prices

From £1,449 GBP
$1,941 USD
As of November 1, 2026
Save £1,652 GBP (53%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £3,100 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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6412487272. Listed at 19 retailers as of November 1, 2026, with prices from £1,449 to £3,100, a £1,652 spread on the same certified stone. MOH London lists it at £3,100. 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
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6412487272
Dimensions5.22 × 5.18 × 3.51 mm
L/W Ratio1.01
Top View
5.22 mm5.18 mm0.81 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6412487272
Side View
Table 60.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 67.9%

Caratlytics Score

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B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: £3,100 GBP|Low: £1,356 GBP|High: £3,137 GBP|Avg: £2,005 GBP|-1.1%
MOH London
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 2, 2026
Retailer 3£1,449 GBP
Retailer 8£1,467 GBP
Retailer 12£1,479 GBP
Retailer 4£1,546 GBP
Retailer 11£1,565 GBP
Retailer 5£1,603 GBP
Retailer 10£1,818 GBP
Retailer 7£1,942 GBP
Retailer 13£2,178 GBP
Retailer 6£2,209 GBP
Retailer 2£2,231 GBP
Retailer 9£2,635 GBP
MOH London£3,100 GBP

39 data points across 13 retailers

19 retailers£1,449 GBP to £3,100 GBP

B
Cheapest Retailer
-
£1,449 GBP
$1,941 USD
B
Retailer 2
-
£1,467 GBP
$1,965 USD
View
B
Retailer 3
-
£1,479 GBP
$1,982 USD
View
Final sale: no returns
B
Retailer 4
-
£1,546 GBP
$2,072 USD
View
B
Retailer 5
-
£1,565 GBP
$2,097 USD
View
Retailer 6
-
£1,603 GBP
$2,148 USD
View
Price last confirmed 25 days ago
B
Retailer 7
-
£1,620 GBP
$2,170 USD
View
B
Retailer 8
-
£1,645 GBP
$2,204 USD
View
B
Retailer 9
-
£1,784 GBP
$2,390 USD
View
B
Retailer 10
-
£1,784 GBP
$2,390 USD
View
B
Retailer 11
-
£1,818 GBP
$2,436 USD
View
B
Retailer 12
-
£1,843 GBP
$2,470 USD
View
B
Retailer 13
-
£1,942 GBP
View
B
Retailer 14
-
£2,052 GBP
$2,750 USD
View
Retailer 15
-
£2,178 GBP
A$4,491 AUD
View
Price last confirmed 25 days ago
B
Retailer 16
-
£2,209 GBP
€2,819 EUR
View
B
Retailer 17
-
£2,231 GBP
View
B
Retailer 18
-
£2,635 GBP
ZAR 57,048 ZAR
View
Most Expensive
B
MOH London
68F618614 · Nov 1
£3,100 GBP
View
18 more retailers have this diamond
Prices start from £1,449 GBPSave up to £1,652 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
£1,449 GBP