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Marquise|Natural|GIA

0.40ct H IF Marquise Natural Diamond

EX • H/IF • GIA 6552599904

Certificate GIA 6552599904

Diamond specifications and retailer prices

From £428 GBP
$575 USD
As of November 1, 2026
Save £560 GBP (57%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £1,344 GBP at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 0.4ct natural marquise diamond

This 0.4ct natural marquise sits in the sub-half-carat band, graded H colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6552599904. Listed at 7 retailers as of November 1, 2026, with a 131% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Flawless clarity in sub-one-carat stones is rarely visible to the naked eye over VS1, so you are paying a meaningful premium for grade rather than appearance.

The 4Cs

0.40
Carat
H
Colour
IF
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6552599904
Dimensions6.67 × 3.66 × 2.27 mm
L/W Ratio1.82
Girdle conditionVery Thick
Key to symbols
Surface Graining, Minor Details of Polish
Top View
6.67 mm3.66 mm0.40 ctH / IF
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateGIA 6552599904
Side View
Table 70.0%CrownGirdlePavilionCulet: NoneDepth 62.0%

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: Nov 1
Current: £1,344 GBP|Low: £428 GBP|High: £1,344 GBP|Avg: £801 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 2, 2026
Retailer 4£428 GBP
Retailer 2£461 GBP
Retailer 7£549 GBP
Retailer 5£574 GBP
Retailer 3£782 GBP
Retailer 6£989 GBP
NZ Jewellers£1,344 GBP

4 data points across 7 retailers

7 retailers£428 GBP to £989 GBP

A
Cheapest Retailer
-
£428 GBP
$575 USD
B+
Retailer 2
-
£461 GBP
$619 USD
View
B
Retailer 3
-
£549 GBP
$737 USD
View
B+
Retailer 4
-
£574 GBP
$770 USD
View
B
Retailer 5
-
£782 GBP
View
B
Retailer 6
-
£989 GBP
View
Most Expensive
NZ Jewellers
4da47edf-0875-4312-8d78-315d0b563422 · Oct 30
£1,344 GBP
$1,803 USD
View
Price under review
6 more retailers have this diamond
Prices start from £428 GBPSave up to £560 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 Marquise
£428 GBP