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Cushion|Natural|GIA

0.31ct F SI1 Cushion Natural Diamond

VG • F/SI1 • GIA 2556419776

Certificate GIA 2556419776

Diamond specifications and retailer prices

From £302 GBP
$405 USD
As of October 29, 2026
Save £345 GBP (53%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £646 GBP at MOH London · As of November 2, 2026
View at MOH London

About this 0.31ct natural cushion diamond

This 0.31ct natural cushion sits in the sub-half-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 2556419776. Listed at 9 retailers as of October 29, 2026, with prices from £302 to £646, a £345 spread on the same certified stone. MOH London lists it at £646. 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

0.31
Carat
F
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2556419776
Dimensions3.86 × 3.69 × 2.61 mm
L/W Ratio1.05
Key to symbols
Cloud, Crystal, Feather
Top View
3.86 mm3.69 mm0.31 ctF / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 2556419776
Side View
Table 62.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 70.8%

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: Oct 29
Current: £646 GBP|Low: £299 GBP|High: £669 GBP|Avg: £423 GBP|-3.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 3, 2026
Retailer 5£302 GBP
Retailer 7£323 GBP
Retailer 2£365 GBP
Retailer 9£384 GBP
Retailer 4£384 GBP
Retailer 3£434 GBP
Retailer 8£445 GBP
Retailer 6£512 GBP
MOH London£646 GBP

45 data points across 9 retailers

9 retailers£302 GBP to £646 GBP

A
Cheapest Retailer
-
£302 GBP
$405 USD
B+
Retailer 2
-
£323 GBP
$434 USD
View
B+
Retailer 3
-
£365 GBP
View
Retailer 4
-
£384 GBP
$515 USD
View
Price last confirmed 9 days ago
B+
Retailer 5
-
£384 GBP
View
B
Retailer 6
-
£434 GBP
ZAR 9,411 ZAR
View
Retailer 7
-
£445 GBP
A$918 AUD
View
Price last confirmed 30 days ago
B
Retailer 8
-
£512 GBP
€654 EUR
View
Most Expensive
B
MOH London
C850FECD9 · Nov 2
£646 GBP
View
8 more retailers have this diamond
Prices start from £302 GBPSave up to £345 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 Cushion
£302 GBP