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Marquise|Natural|GIA

0.40ct H IF Marquise Natural Diamond

GD • H/IF • GIA 6505477862

Certificate GIA 6505477862

Diamond specifications and retailer prices

From £543 GBP
SGD 985 SGD
As of October 31, 2026
Save £518 GBP (49%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £1,061 GBP at Diamond Quarter · As of October 30, 2026
View at Diamond Quarter

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 standard cut grade stated by the retailer rather than the lab and certified by GIA 6505477862. Listed at 2 retailers as of October 30, 2026, with prices from £543 to £1,061, a £518 spread on the same certified stone. Diamond Quarter lists it at £1,061. 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
H
Colour
IF
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6505477862
Dimensions3.89 × 7.36 × 2.46 mm
L/W Ratio1.89
Top View
3.89 mm7.36 mm0.40 ctH / IF
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6505477862
Side View
Table 57.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 63.3%

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 31
Current: £1,061 GBP|Low: £543 GBP|High: £1,061 GBP|Avg: £803 GBP
Diamond Quarter
Retailer 2
October 13, 2026
Retailer 2£543 GBP
Diamond Quarter£1,061 GBP

4 data points across 2 retailers

2 retailers£543 GBP to £1,061 GBP

B+
Cheapest Retailer
-
£543 GBP
SGD 985 SGD
Most Expensive
C
Diamond Quarter
0.4IFH6507766AN · Oct 30
£1,061 GBP
View
1 more retailer has this diamond
Prices start from £543 GBPSave up to £518 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 Marquise
£543 GBP