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Heart|Natural|GIA

0.40ct E SI2 Heart Natural Diamond

GD • E/SI2 • GIA 1236370456

Certificate GIA 1236370456

Diamond specifications and retailer prices

From £354 GBP
As of October 26, 2026
Save £281 GBP (44%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £635 GBP at MOH London · As of October 26, 2026
View at MOH London

About this 0.4ct natural heart diamond

This 0.4ct natural heart sits in the sub-half-carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 1236370456. Listed at 5 retailers as of October 26, 2026, with prices from £354 to £635, a £281 spread on the same certified stone. MOH London lists it at £635. 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

0.40
Carat
E
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishGood
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1236370456
Dimensions5.03 × 4.27 × 2.66 mm
L/W Ratio1.18
Culet sizeNone
Top View
5.03 mm4.27 mm0.40 ctE / SI2
OriginNatural
CutGood
PolishGood
SymmetryGood
FluorescenceNone
CertificateGIA 1236370456
Side View
Table 60.0%CrownGirdle: STK-ETKPavilionCulet: NoneDepth 62.2%

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 26
Current: £635 GBP|Low: £341 GBP|High: £677 GBP|Avg: £473 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
October 28, 2026
Retailer 3£354 GBP
Retailer 4£422 GBP
Retailer 2£599 GBP
MOH London£635 GBP

33 data points across 4 retailers

5 retailers£354 GBP to £635 GBP

B+
Cheapest Retailer
-
£354 GBP
B
Retailer 2
-
£422 GBP
$565 USD
View
B
Retailer 3
-
£435 GBP
View
B
Retailer 4
-
£599 GBP
View
Most Expensive
B
MOH London
53E38D5D3 · Oct 26
£635 GBP
View
4 more retailers have this diamond
Prices start from £354 GBPSave up to £281 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+
0.40ct Heart
£354 GBP