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Cushion|Natural|GIA

1.00ct E SI1 Cushion Natural Diamond

ID • E/SI1 • GIA 5556749718

Certificate GIA 5556749718

Diamond specifications and retailer prices

From £990 GBP
$1,327 USD
As of October 28, 2026
Save £1,227 GBP (55%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £2,217 GBP at MOH London · As of October 29, 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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5556749718. Listed at 11 retailers as of October 28, 2026, with prices from £990 to £2,217, a £1,227 spread on the same certified stone. MOH London lists it at £2,217. 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

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

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 5556749718
Dimensions6.57 × 5.26 × 3.57 mm
L/W Ratio1.25
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Cloud, Feather, Needle
Top View
6.57 mm5.26 mm1.00 ctE / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 5556749718
Side View
Table 60.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 67.8%

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 28
Current: £2,217 GBP|Low: £954 GBP|High: £2,360 GBP|Avg: £1,439 GBP|-5.1%
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
October 29, 2026
Retailer 8£990 GBP
Retailer 12£1,030 GBP
Retailer 2£1,105 GBP
Retailer 3£1,213 GBP
Retailer 4£1,216 GBP
Retailer 9£1,310 GBP
Retailer 14£1,331 GBP
Retailer 5£1,351 GBP
Retailer 7£1,434 GBP
Retailer 10£1,453 GBP
Retailer 6£1,493 GBP
Retailer 15£1,628 GBP
Retailer 13£1,737 GBP
Retailer 11£1,811 GBP
MOH London£2,217 GBP

37 data points across 15 retailers

11 retailers£990 GBP to £2,217 GBP

A
Cheapest Retailer
-
£990 GBP
$1,327 USD
Final sale: no returns
A
Retailer 2
-
£1,105 GBP
$1,480 USD
View
Retailer 3
-
£1,213 GBP
$1,625 USD
View
Price last confirmed 25 days ago
Retailer 4
-
£1,216 GBP
$1,629 USD
View
Price last confirmed 23 days ago
A
Retailer 5
-
£1,310 GBP
$1,755 USD
View
Retailer 6
-
£1,331 GBP
$1,784 USD
View
Price last confirmed 22 days ago
Retailer 7
-
£1,434 GBP
$1,921 USD
View
Price last confirmed 21 days ago
Retailer 8
-
£1,493 GBP
$2,000 USD
View
Price last confirmed 22 days ago
Retailer 9
-
£1,628 GBP
ZAR 35,242 ZAR
View
Price last confirmed 26 days ago
Retailer 10
-
£1,737 GBP
A$3,581 AUD
View
Price last confirmed 24 days ago
Most Expensive
B+
MOH London
FAAA90EC6 · Oct 29
£2,217 GBP
View
10 more retailers have this diamond
Prices start from £990 GBPSave up to £1,227 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
£990 GBP