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Heart|Natural|IGI

0.31ct G SI1 Heart Natural Diamond

VG • G/SI1 • IGI 810635845

Shape and cutting style on the report: Heart brilliant

Certificate IGI 810635845

Diamond specifications and retailer prices

From £138 GBP
₹17,658 INR
As of November 2, 2026
Save £318 GBP (70%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £456 GBP at MOH London · As of November 2, 2026
View at MOH London

About this 0.31ct natural heart diamond

This 0.31ct natural heart sits in the sub-half-carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 810635845. Listed at 3 retailers as of November 2, 2026, with prices from £138 to £456, a £318 spread on the same certified stone. MOH London lists it at £456. 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

0.31
Carat
G
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
Crown angle36.1°
Pavilion angle37.4°
OriginNatural
Grading LabIGI
CertificateIGI 810635845
Dimensions3.86 × 4.71 × 2.76 mm
L/W Ratio1.22
Girdle conditionFaceted
Culet sizeNone
Top View
3.86 mm4.71 mm0.31 ctG / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateIGI 810635845
Side View
Table 57.0%Crown 36.1°Girdle: STK-VTKPavilion 37.4°Culet: NoneDepth 58.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: £456 GBP|Low: £138 GBP|High: £462 GBP|Avg: £284 GBP|-1.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 2, 2026
Retailer 2£138 GBP
Retailer 3£249 GBP
Retailer 4£280 GBP
Retailer 5£313 GBP
MOH London£456 GBP

40 data points across 5 retailers

3 retailers£138 GBP to £456 GBP

A
Cheapest Retailer
-
£138 GBP
₹17,658 INR
B
Retailer 2
-
£313 GBP
$420 USD
View
Most Expensive
C
MOH London
B8F1658B6 · Nov 2
£456 GBP
View
2 more retailers have this diamond
Prices start from £138 GBPSave up to £318 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
0.31ct Heart
£138 GBP