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Heart|Natural|IGI

0.31ct I SI1 Heart Natural Diamond

VG • I/SI1 • IGI 795674327

Shape and cutting style on the report: Heart brilliant

Certificate IGI 795674327

Diamond specifications and retailer prices

From £253 GBP
As of November 2, 2026
Save £119 GBP (32%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £373 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 795674327. Listed at 4 retailers as of November 2, 2026, with prices from £253 to £373, a £119 spread on the same certified stone. MOH London lists it at £373. 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
I
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishGood
SymmetryVery Good
FluorescenceNone
Crown angle37.5°
Pavilion angle37.4°
OriginNatural
Grading LabIGI
CertificateIGI 795674327
Dimensions4.34 × 4.55 × 2.60 mm
L/W Ratio1.05
Girdle conditionFaceted
Culet sizeNone
Top View
4.34 mm4.55 mm0.31 ctI / SI1
OriginNatural
CutVery Good
PolishGood
SymmetryVery Good
FluorescenceNone
CertificateIGI 795674327
Side View
Table 59.0%Crown 37.5°Girdle: THK-VTKPavilion 37.4°Culet: NoneDepth 57.1%

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: Nov 2
Current: £373 GBP|Low: £237 GBP|High: £378 GBP|Avg: £309 GBP|-1.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
November 2, 2026
Retailer 2£253 GBP
Retailer 4£296 GBP
Retailer 3£327 GBP
MOH London£373 GBP

28 data points across 4 retailers

4 retailers£253 GBP to £373 GBP

B+
Cheapest Retailer
-
£253 GBP
B
Retailer 2
-
£296 GBP
$397 USD
View
B
Retailer 3
-
£327 GBP
€418 EUR
View
Most Expensive
B
MOH London
2B16AD470 · Nov 2
£373 GBP
View
3 more retailers have this diamond
Prices start from £253 GBPSave up to £119 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+
0.31ct Heart
£253 GBP