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Heart|Natural|GIA

0.40ct E SI1 Heart Natural Diamond

EX • E/SI1 • GIA 3565438137

Certificate GIA 3565438137

Diamond specifications and retailer prices

From £330 GBP
$440 USD
As of October 28, 2026
Save £198 GBP (38%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £529 GBP at Wholesale Diamonds Direct · As of October 27, 2026
View at Wholesale Diamonds Direct

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 3565438137. Listed at 8 retailers as of October 27, 2026, with prices from £330 to £529, a £198 spread on the same certified stone. Wholesale Diamonds Direct lists it at £529. 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
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle39.49°
Pavilion angle38.69°
OriginNatural
Grading LabGIA
CertificateGIA 3565438137
Dimensions4.44 × 4.99 × 2.98 mm
L/W Ratio1.12
Culet sizeNone
Top View
4.44 mm4.99 mm0.40 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 3565438137
Side View
Table 59.0%Crown 39.49°Girdle: THN-VTKPavilion 38.69°Culet: NoneDepth 59.8%

Caratlytics Score

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

Price History

Last verified: Oct 28
Current: £430 GBP|Low: £330 GBP|High: £529 GBP|Avg: £415 GBP|+5.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Wholesale Diamonds Direct
October 30, 2026
Retailer 5£330 GBP
Retailer 7£353 GBP
Retailer 3£371 GBP
Retailer 4£391 GBP
Retailer 1£430 GBP
Retailer 2£453 GBP
Retailer 6£459 GBP
Wholesale Diamonds Direct£529 GBP

30 data points across 8 retailers

8 retailers£330 GBP to £529 GBP

A
Cheapest Retailer
-
£330 GBP
$440 USD
A
Retailer 2
-
£353 GBP
SGD 635 SGD
View
A
Retailer 3
-
£371 GBP
SGD 668 SGD
View
A
Retailer 4
-
£391 GBP
$521 USD
View
B+
Retailer 5
-
£430 GBP
View
B+
Retailer 6
-
£453 GBP
View
B+
Retailer 7
-
£459 GBP
$611 USD
View
Most Expensive
B
Wholesale Diamonds Direct
420075563 · Oct 27
£529 GBP
$704 USD
View
7 more retailers have this diamond
Prices start from £330 GBPSave up to £198 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
£330 GBP