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Marquise|Natural|GIA

0.42ct H IF Marquise Natural Diamond

VG • H/IF • GIA 2557977236

Certificate GIA 2557977236

Diamond specifications and retailer prices

From £439 GBP
HK$4,600 HKD
As of November 1, 2026
Save £272 GBP (38%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £711 GBP at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 0.42ct natural marquise diamond

This 0.42ct natural marquise sits in the sub-half-carat band, graded H colour (near-colourless) and IF clarity (flawless or internally-flawless), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 2557977236. Listed at 7 retailers as of October 31, 2026, with prices from £439 to £711, a £272 spread on the same certified stone. Taylor and Hart lists it at £711. 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

0.42
Carat
H
Colour
IF
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle31.15°
Pavilion angle42.39°
OriginNatural
Grading LabGIA
CertificateGIA 2557977236
Dimensions7.93 × 3.97 × 2.48 mm
L/W Ratio2.00
Culet sizeNone
Key to symbols
Minor Details of Polish
Top View
7.93 mm3.97 mm0.42 ctH / IF
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2557977236
Side View
Table 63.0%Crown 31.15°Girdle: MED-THKPavilion 42.39°Culet: NoneDepth 62.5%

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: £635 GBP|Low: £439 GBP|High: £731 GBP|Avg: £551 GBP|+5.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Taylor and Hart
November 2, 2026
Retailer 6£439 GBP
Retailer 5£489 GBP
Retailer 3£506 GBP
Retailer 4£520 GBP
Retailer 2£543 GBP
Retailer 1£635 GBP
Taylor and Hart£711 GBP

42 data points across 7 retailers

7 retailers£439 GBP to £711 GBP

A
Cheapest Retailer
-
£439 GBP
HK$4,600 HKD
B+
Retailer 2
-
£489 GBP
$655 USD
View
B+
Retailer 3
-
£506 GBP
SGD 917 SGD
View
B+
Retailer 4
-
£520 GBP
SGD 941 SGD
View
B+
Retailer 5
-
£543 GBP
$727 USD
View
B
Retailer 6
-
£635 GBP
View
Most Expensive
B
Taylor and Hart
6JMRZ3O · Oct 31
£711 GBP
$953 USD
View
6 more retailers have this diamond
Prices start from £439 GBPSave up to £272 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
0.42ct Marquise
£439 GBP