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Heart|Natural|IGI

0.81ct J SI2 Heart Natural Diamond

EX • J/SI2 • IGI 457054632

Shape and cutting style on the report: Heart brilliant

Certificate IGI 457054632

Diamond specifications and retailer prices

From £654 GBP
As of November 5, 2026
Save £1,351 GBP (67%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £2,004 GBP at NZ Jewellers · As of November 5, 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 J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI 457054632. Listed at 10 retailers as of November 5, 2026, with prices from £654 to £2,004, a £1,351 spread on the same certified stone. NZ Jewellers lists it at £2,004. 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
J
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishGood
SymmetryVery Good
FluorescenceFaint
Crown angle37.7°
Pavilion angle34.3°
OriginNatural
Grading LabIGI
CertificateIGI 457054632
Dimensions6.14 × 6.60 × 3.31 mm
L/W Ratio1.07
Girdle conditionFaceted
Culet sizeMedium Natural
Top View
6.14 mm6.60 mm0.81 ctJ / SI2
OriginNatural
CutExcellent
PolishGood
SymmetryVery Good
FluorescenceFaint
CertificateIGI 457054632
Side View
Table 61.5%Crown 37.7°Girdle: MED-VTKPavilion 34.3°Culet: NoneDepth 50.2%

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: Nov 5
Current: £2,004 GBP|Low: £452 GBP|High: £2,004 GBP|Avg: £890 GBP
NZ Jewellers
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 6, 2026
Retailer 5£452 GBP
Retailer 10£654 GBP
Retailer 13£654 GBP
Retailer 2£661 GBP
Retailer 11£679 GBP
Retailer 8£747 GBP
Retailer 12£756 GBP
Retailer 6£835 GBP
Retailer 7£889 GBP
Retailer 3£921 GBP
Retailer 4£1,033 GBP
Retailer 9£1,168 GBP
NZ Jewellers£2,004 GBP

42 data points across 13 retailers

10 retailers£654 GBP to £2,004 GBP

B+
Cheapest Retailer
-
£654 GBP
Retailer 2
-
£654 GBP
View
Price last confirmed 8 days ago
B+
Retailer 3
-
£661 GBP
View
B+
Retailer 4
-
£679 GBP
View
B+
Retailer 5
-
£747 GBP
View
B+
Retailer 6
-
£756 GBP
View
B+
Retailer 7
-
£835 GBP
View
B
Retailer 8
-
£889 GBP
View
B
Retailer 9
-
£1,168 GBP
View
Most Expensive
C
NZ Jewellers
603b8c87-bc2d-4967-a0bc-1395e2d32fd0 · Nov 5
£2,004 GBP
$2,683 USD
View
9 more retailers have this diamond
Prices start from £654 GBPSave up to £1,351 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
£654 GBP