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Marquise|Natural|GIA

0.31ct F SI2 Marquise Natural Diamond

EX • F/SI2 • GIA 2556734736

Certificate GIA 2556734736

Diamond specifications and retailer prices

From £156 GBP
₹19,936 INR
As of November 2, 2026
Save £336 GBP (68%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £492 GBP at MOH London · As of November 1, 2026
View at MOH London

About this 0.31ct natural marquise diamond

This 0.31ct natural marquise sits in the sub-half-carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2556734736. Listed at 17 retailers as of November 1, 2026, with prices from £156 to £492, a £336 spread on the same certified stone. MOH London lists it at £492. 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

0.31
Carat
F
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceMedium
Crown angle38.6°
Pavilion angle38.6°
OriginNatural
Grading LabGIA
CertificateGIA 2556734736
Dimensions6.69 × 3.58 × 2.19 mm
L/W Ratio1.87
Girdle conditionFaceted
Culet sizeNone
Top View
6.69 mm3.58 mm0.31 ctF / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceMedium
CertificateGIA 2556734736
Side View
Table 61.0%Crown 38.6°Girdle: STK-VTKPavilion 38.6°Culet: NoneDepth 61.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: £492 GBP|Low: £156 GBP|High: £1,012 GBP|Avg: £325 GBP|-8.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
November 2, 2026
Retailer 2£156 GBP
Retailer 7£191 GBP
Retailer 16£197 GBP
Retailer 15£213 GBP
Retailer 3£217 GBP
Retailer 14£230 GBP
Retailer 8£234 GBP
Retailer 13£238 GBP
Retailer 9£271 GBP
Retailer 6£289 GBP
Retailer 12£292 GBP
Retailer 4£312 GBP
Retailer 10£332 GBP
Retailer 11£369 GBP
MOH London£492 GBP
Retailer 5£973 GBP

25 data points across 16 retailers

17 retailers£156 GBP to £492 GBP

A
Cheapest Retailer
-
£156 GBP
₹19,936 INR
A
Retailer 2
-
£191 GBP
HK$2,000 HKD
View
A
Retailer 3
-
£197 GBP
$264 USD
View
Final sale: no returns
A
Retailer 4
-
£213 GBP
$286 USD
View
A
Retailer 5
-
£217 GBP
$291 USD
View
A
Retailer 6
-
£230 GBP
$308 USD
View
A
Retailer 7
-
£234 GBP
SGD 425 SGD
View
A
Retailer 8
-
£238 GBP
$319 USD
View
B+
Retailer 9
-
£271 GBP
View
B+
Retailer 10
-
£289 GBP
$388 USD
View
B+
Retailer 11
-
£292 GBP
View
B+
Retailer 12
-
£312 GBP
$419 USD
View
Retailer 13
-
£324 GBP
$435 USD
View
Price last confirmed 56 days ago
B
Retailer 14
-
£332 GBP
$446 USD
View
B
Retailer 15
-
£369 GBP
€472 EUR
View
Most Expensive
B
MOH London
25AA25423 · Nov 1
£492 GBP
View
15 more retailers have this diamond
Prices start from £156 GBPSave up to £336 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
0.31ct Marquise
£156 GBP