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Heart|Natural|GIA

0.40ct E SI1 Heart Natural Diamond

EX • E/SI1 • GIA 7551765514

Certificate GIA 7551765514

Diamond specifications and retailer prices

From £288 GBP
SGD 518 SGD
As of October 29, 2026
Save £224 GBP (44%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £512 GBP at The Diamond Guys · As of October 29, 2026
View at The Diamond Guys

About this 0.4ct natural heart diamond

This 0.4ct natural heart sits in the sub-half-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7551765514. Listed at 8 retailers as of October 29, 2026, with prices from £288 to £512, a £224 spread on the same certified stone. The Diamond Guys lists it at £512. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.40
Carat
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle37.49°
Pavilion angle37.1°
OriginNatural
Grading LabGIA
CertificateGIA 7551765514
Dimensions4.35 × 5.11 × 2.98 mm
L/W Ratio1.17
Culet sizeNone
Top View
4.35 mm5.11 mm0.40 ctE / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 7551765514
Side View
Table 59.0%Crown 37.49°Girdle: VTN-VTKPavilion 37.1°Culet: NoneDepth 58.3%

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: Oct 29
Current: £357 GBP|Low: £288 GBP|High: £481 GBP|Avg: £376 GBP|-1.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 30, 2026
Retailer 5£288 GBP
Retailer 6£293 GBP
Retailer 4£335 GBP
Retailer 1£357 GBP
Retailer 3£377 GBP
Retailer 2£382 GBP
Retailer 7£443 GBP

39 data points across 7 retailers

8 retailers£288 GBP to £512 GBP

A
Cheapest Retailer
-
£288 GBP
SGD 518 SGD
A
Retailer 2
-
£293 GBP
SGD 528 SGD
View
A
Retailer 3
-
£335 GBP
$446 USD
View
A
Retailer 4
-
£357 GBP
View
A
Retailer 5
-
£377 GBP
View
A
Retailer 6
-
£382 GBP
$508 USD
View
B+
Retailer 7
-
£443 GBP
$591 USD
View
Most Expensive
B
The Diamond Guys
1966473764 · Oct 29
£512 GBP
$682 USD
View
7 more retailers have this diamond
Prices start from £288 GBPSave up to £224 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
0.40ct Heart
£288 GBP