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Heart|Natural|IGI

0.81ct I SI1 Heart Natural Diamond

VG • I/SI1 • IGI 457054604

Shape and cutting style on the report: Heart brilliant

Certificate IGI 457054604

Diamond specifications and retailer prices

From $1,158 USD
As of October 31, 2026
Save $711 USD (38%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $1,869 USD 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 very-good cut grade and certified by IGI 457054604. Listed at 4 retailers as of October 31, 2026, with prices from $1,158 to $1,869, a $711 spread on the same certified stone. MOH London lists it at $1,869. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.81
Carat
I
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle34.1°
Pavilion angle38.2°
OriginNatural
Grading LabIGI
CertificateIGI 457054604
Dimensions5.90 × 6.32 × 3.48 mm
L/W Ratio1.07
Girdle conditionFaceted
Culet sizeSmall
Top View
5.90 mm6.32 mm0.81 ctI / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI 457054604
Side View
Table 66.5%Crown 34.1°Girdle: THK-VTKPavilion 38.2°Culet: SmallDepth 55.1%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $1,869 USD|Low: $1,140 USD|High: $1,892 USD|Avg: $1,404 USD|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
November 1, 2026
Retailer 4$1,158 USD
Retailer 2$1,229 USD
Retailer 3$1,433 USD
MOH London$1,869 USD

43 data points across 4 retailers

4 retailers$1,158 USD to $1,869 USD

B+
Cheapest Retailer
-
$1,158 USD
B+
Retailer 2
-
$1,229 USD
£967 GBP
View
B
Retailer 3
-
$1,433 USD
€1,365 EUR
View
Most Expensive
B
MOH London
7CCB6D255 · Nov 1
$1,869 USD
£1,472 GBP
View
3 more retailers have this diamond
Prices start from $1,158 USDSave up to $711 USD

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
$1,158 USD