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Princess|Natural|GIA

0.40ct F SI1 Princess Natural Diamond

EX • F/SI1 • GIA 7521379942

Certificate GIA 7521379942

Diamond specifications and retailer prices

From £400 GBP
$537 USD
As of November 1, 2026
Save £503 GBP (56%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £1,255 GBP at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 0.4ct natural princess diamond

This 0.4ct natural princess sits in the sub-half-carat band, graded F 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 7521379942. Listed at 14 retailers as of November 1, 2026, with a 126% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
F
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle22.54°
Pavilion angle40.26°
OriginNatural
Grading LabGIA
CertificateGIA 7521379942
Dimensions4.04 × 4.00 × 2.90 mm
L/W Ratio1.01
Culet sizeNone
Top View
4.04 mm4.00 mm0.40 ctF / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 7521379942
Side View
Table 74.0%Crown 22.54°Girdle: THN-THKPavilion 40.26°Culet: NoneDepth 72.5%

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: £791 GBP|Low: £431 GBP|High: £914 GBP|Avg: £619 GBP|-1.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 9£431 GBP
Retailer 2£476 GBP
Retailer 4£548 GBP
Retailer 7£548 GBP
Retailer 5£597 GBP
Retailer 8£602 GBP
Retailer 6£620 GBP
Retailer 1£791 GBP
Retailer 3£903 GBP

37 data points across 9 retailers

14 retailers£400 GBP to £903 GBP

B+
Cheapest Retailer
-
£400 GBP
$537 USD
B+
Retailer 2
-
£431 GBP
$578 USD
View
B+
Retailer 3
-
£431 GBP
$578 USD
View
B
Retailer 4
-
£462 GBP
$620 USD
View
B
Retailer 5
-
£476 GBP
View
B
Retailer 6
-
£498 GBP
$668 USD
View
B
Retailer 7
-
£548 GBP
$735 USD
View
B
Retailer 8
-
£548 GBP
View
B
Retailer 9
-
£597 GBP
€763 EUR
View
Retailer 10
-
£602 GBP
A$1,242 AUD
View
Price last confirmed 29 days ago
B
Retailer 11
-
£620 GBP
ZAR 13,451 ZAR
View
B
Retailer 12
-
£791 GBP
View
B
Retailer 13
-
£903 GBP
View
Most Expensive
NZ Jewellers
255d6d5f-1463-4f26-839d-d857230372f8 · Oct 30
£1,255 GBP
$1,684 USD
View
Price under review
13 more retailers have this diamond
Prices start from £400 GBPSave up to £503 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 Princess
£400 GBP