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Cushion|Natural|GIA

0.31ct D SI1 Cushion Natural Diamond

EX • D/SI1 • GIA 5556389494

Certificate GIA 5556389494

Diamond specifications and retailer prices

From £332 GBP
$445 USD
As of November 1, 2026
Save £408 GBP (55%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £740 GBP at MOH London · As of October 29, 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5556389494. Listed at 11 retailers as of October 29, 2026, with prices from £332 to £740, a £408 spread on the same certified stone. MOH London lists it at £740. 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
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5556389494
Dimensions3.93 × 3.92 × 2.68 mm
L/W Ratio1.00
Culet sizeNone
Key to symbols
Etch Channel, Crystal, Twinning Wisp, Feather
Top View
3.93 mm3.92 mm0.31 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5556389494
Side View
Table 64.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 68.4%

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: £740 GBP|Low: £332 GBP|High: £744 GBP|Avg: £477 GBP|+16.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 2£332 GBP
Retailer 3£351 GBP
Retailer 9£374 GBP
Retailer 5£391 GBP
Retailer 11£424 GBP
Retailer 8£447 GBP
Retailer 10£458 GBP
Retailer 6£496 GBP
Retailer 7£505 GBP
Retailer 4£645 GBP
MOH London£740 GBP

30 data points across 11 retailers

11 retailers£332 GBP to £740 GBP

A
Cheapest Retailer
-
£332 GBP
$445 USD
A
Retailer 2
-
£351 GBP
$470 USD
View
A
Retailer 3
-
£374 GBP
$501 USD
View
B+
Retailer 4
-
£391 GBP
View
B+
Retailer 5
-
£424 GBP
$568 USD
View
B+
Retailer 6
-
£447 GBP
View
B+
Retailer 7
-
£458 GBP
$614 USD
View
B+
Retailer 8
-
£496 GBP
€633 EUR
View
B+
Retailer 9
-
£505 GBP
ZAR 10,940 ZAR
View
B
Retailer 10
-
£645 GBP
View
Most Expensive
B
MOH London
0AB137A9B · Oct 29
£740 GBP
View
10 more retailers have this diamond
Prices start from £332 GBPSave up to £408 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
£332 GBP