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Cushion|Natural|GIA

1.00ct E SI1 Cushion Natural Diamond

GD • E/SI1 • GIA 2556351055

Certificate GIA 2556351055

Diamond specifications and retailer prices

From £1,003 GBP
₹128,005 INR
As of October 26, 2026
Save £1,333 GBP (57%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £2,336 GBP at MOH London · As of October 26, 2026
View at MOH London

About this 1ct natural cushion diamond

This 1ct natural cushion sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2556351055. Listed at 16 retailers as of October 26, 2026, with prices from £1,003 to £2,336, a £1,333 spread on the same certified stone. MOH London lists it at £2,336. 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

1.00
Carat
E
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2556351055
Dimensions6.41 × 5.14 × 3.65 mm
L/W Ratio1.25
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Needle
Top View
6.41 mm5.14 mm1.00 ctE / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2556351055
Side View
Table 63.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 70.9%

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 26
Current: £2,336 GBP|Low: £1,000 GBP|High: £2,533 GBP|Avg: £1,490 GBP|-7.7%
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
October 27, 2026
Retailer 12£1,003 GBP
Retailer 16£1,049 GBP
Retailer 7£1,184 GBP
Retailer 6£1,200 GBP
Retailer 14£1,214 GBP
Retailer 2£1,303 GBP
Retailer 5£1,331 GBP
Retailer 13£1,352 GBP
Retailer 3£1,377 GBP
Retailer 4£1,434 GBP
Retailer 8£1,480 GBP
Retailer 9£1,484 GBP
Retailer 15£1,493 GBP
Retailer 11£1,622 GBP
Retailer 10£1,809 GBP
MOH London£2,336 GBP

18 data points across 16 retailers

16 retailers£1,003 GBP to £2,336 GBP

A
Cheapest Retailer
-
£1,003 GBP
₹128,005 INR
Retailer 2
-
£1,184 GBP
$1,587 USD
View
Price last confirmed 8 days ago
A
Retailer 3
-
£1,200 GBP
$1,608 USD
View
A
Retailer 4
-
£1,214 GBP
$1,626 USD
View
A
Retailer 5
-
£1,303 GBP
View
B+
Retailer 6
-
£1,331 GBP
$1,784 USD
View
A
Retailer 7
-
£1,352 GBP
$1,811 USD
View
B+
Retailer 8
-
£1,377 GBP
$1,845 USD
View
A
Retailer 9
-
£1,434 GBP
$1,921 USD
View
A
Retailer 10
-
£1,480 GBP
$1,983 USD
View
A
Retailer 11
-
£1,484 GBP
View
A
Retailer 12
-
£1,493 GBP
$2,000 USD
View
B+
Retailer 13
-
£1,622 GBP
ZAR 35,100 ZAR
View
B+
Retailer 14
-
£1,809 GBP
€2,309 EUR
View
Retailer 15
-
£1,864 GBP
A$3,842 AUD
View
Price last confirmed 25 days ago
Most Expensive
B
MOH London
4344F8F96 · Oct 26
£2,336 GBP
View
15 more retailers have this diamond
Prices start from £1,003 GBPSave up to £1,333 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
1.00ct Cushion
£1,003 GBP