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Marquise|Natural|GIA

0.31ct I IF Marquise Natural Diamond

EX • I/IF • GIA 2556405200

Certificate GIA 2556405200

Diamond specifications and retailer prices

From £479 GBP
€612 EUR
As of November 2, 2026
Save £175 GBP (27%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £1,086 GBP at NZ Jewellers · As of November 3, 2026
View at NZ Jewellers

About this 0.31ct natural marquise diamond

This 0.31ct natural marquise sits in the sub-half-carat band, graded I 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 2556405200. Listed at 4 retailers as of November 2, 2026, with a 37% 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

0.31
Carat
I
Colour
IF
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2556405200
Dimensions6.68 × 3.50 × 2.24 mm
L/W Ratio1.91
Culet sizeNone
Key to symbols
Minor Details of Polish
Top View
6.68 mm3.50 mm0.31 ctI / IF
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 2556405200
Side View
Table 59.0%CrownGirdle: THN-VTKPavilionCulet: NoneDepth 63.9%

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 2
Current: £1,086 GBP|Low: £409 GBP|High: £1,096 GBP|Avg: £620 GBP|-1.0%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 2, 2026
Retailer 7£409 GBP
Retailer 5£455 GBP
Retailer 4£479 GBP
Retailer 3£517 GBP
Retailer 2£654 GBP
Retailer 6£704 GBP
NZ Jewellers£1,086 GBP

36 data points across 7 retailers

4 retailers£479 GBP to £654 GBP

B+
Cheapest Retailer
-
£479 GBP
€612 EUR
B+
Retailer 2
-
£517 GBP
View
B
Retailer 3
-
£654 GBP
View
Most Expensive
NZ Jewellers
d78809be-0ce3-4b78-8fce-e834e288e005 · Nov 3
£1,086 GBP
$1,457 USD
View
Price under review
3 more retailers have this diamond
Prices start from £479 GBPSave up to £175 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+
0.31ct Marquise
£479 GBP