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Heart|Natural|IGI

0.31ct H SI2 Heart Natural Diamond

VG • H/SI2 • IGI 729536690

Shape and cutting style on the report: Heart brilliant

Certificate IGI 729536690

Diamond specifications and retailer prices

From £226 GBP
$303 USD
As of November 1, 2026
Save £296 GBP (57%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £522 GBP at MOH London · As of November 1, 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 H colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI 729536690. Listed at 12 retailers as of November 1, 2026, with prices from £226 to £522, a £296 spread on the same certified stone. MOH London lists it at £522. 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
H
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle36.6°
Pavilion angle39.9°
OriginNatural
Grading LabIGI
CertificateIGI 729536690
Dimensions4.24 × 4.68 × 2.66 mm
L/W Ratio1.10
Girdle conditionFaceted
Culet sizePointed
Top View
4.24 mm4.68 mm0.31 ctH / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI 729536690
Side View
Table 69.0%Crown 36.6°Girdle: STK-THKPavilion 39.9°Culet: NoneDepth 56.8%

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 1
Current: £522 GBP|Low: £220 GBP|High: £867 GBP|Avg: £350 GBP|+7.2%
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 1, 2026
Retailer 4£222 GBP
Retailer 11£226 GBP
Retailer 13£244 GBP
Retailer 7£252 GBP
Retailer 10£305 GBP
Retailer 8£306 GBP
Retailer 6£310 GBP
Retailer 5£317 GBP
Retailer 12£324 GBP
Retailer 9£351 GBP
Retailer 2£429 GBP
MOH London£522 GBP
Retailer 3£867 GBP

28 data points across 13 retailers

12 retailers£226 GBP to £522 GBP

B+
Cheapest Retailer
-
£226 GBP
$303 USD
B+
Retailer 2
-
£244 GBP
$327 USD
View
B+
Retailer 3
-
£252 GBP
$338 USD
View
Retailer 4
-
£284 GBP
$380 USD
View
Price last confirmed 56 days ago
B
Retailer 5
-
£305 GBP
$408 USD
View
B
Retailer 6
-
£306 GBP
$411 USD
View
B
Retailer 7
-
£310 GBP
View
B
Retailer 8
-
£324 GBP
$434 USD
View
B
Retailer 9
-
£351 GBP
$470 USD
View
C
Retailer 10
-
£429 GBP
€547 EUR
View
Most Expensive
C
MOH London
0BED7EAA7 · Nov 1
£522 GBP
View
10 more retailers have this diamond
Prices start from £226 GBPSave up to £296 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
£226 GBP