Cushion|Natural|GIA

1.00ct E SI1 Cushion Natural Diamond

GD • E/SI1 • GIA 1443381661

Certificate GIA 1443381661

Diamond specifications and retailer prices

From £1,190 GBP
$1,595 USD
As of October 25, 2026
Save £1,400 GBP (54%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £2,590 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 1443381661. Listed at 17 retailers as of October 25, 2026, with prices from £1,190 to £2,590, a £1,400 spread on the same certified stone. MOH London lists it at £2,590. 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
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1443381661
Dimensions6.22 × 5.34 × 3.71 mm
L/W Ratio1.16
Top View
6.22 mm5.34 mm1.00 ctE / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 1443381661
Side View
Table 67.0%CrownGirdle: STK-ETKPavilionCulet: NoneDepth 69.5%

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 25
Current: £2,590 GBP|Low: £1,190 GBP|High: £2,618 GBP|Avg: £1,721 GBP|-1.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 30, 2026
Retailer 8£1,190 GBP
Retailer 7£1,256 GBP
Retailer 4£1,338 GBP
Retailer 2£1,445 GBP
Retailer 10£1,478 GBP
Retailer 3£1,616 GBP
Retailer 6£1,798 GBP
Retailer 9£1,931 GBP
Retailer 5£2,014 GBP
MOH London£2,590 GBP

35 data points across 10 retailers

17 retailers£1,190 GBP to £2,590 GBP

A
Cheapest Retailer
-
£1,190 GBP
$1,595 USD
B+
Retailer 2
-
£1,219 GBP
$1,633 USD
View
A
Retailer 3
-
£1,256 GBP
$1,683 USD
View
B+
Retailer 4
-
£1,381 GBP
$1,850 USD
View
B+
Retailer 5
-
£1,389 GBP
$1,861 USD
View
B+
Retailer 6
-
£1,427 GBP
$1,913 USD
View
B+
Retailer 7
-
£1,445 GBP
View
B+
Retailer 8
-
£1,478 GBP
$1,980 USD
View
B+
Retailer 9
-
£1,567 GBP
$2,100 USD
View
B+
Retailer 10
-
£1,567 GBP
$2,100 USD
View
B+
Retailer 11
-
£1,616 GBP
View
B+
Retailer 12
-
£1,620 GBP
$2,170 USD
View
B+
Retailer 13
-
£1,798 GBP
ZAR 38,922 ZAR
View
B+
Retailer 14
-
£1,810 GBP
$2,425 USD
View
Retailer 15
-
£1,931 GBP
A$3,980 AUD
View
Price last confirmed 27 days ago
B
Retailer 16
-
£2,014 GBP
€2,570 EUR
View
Most Expensive
B
MOH London
B4C10419B · Oct 26
£2,590 GBP
View
16 more retailers have this diamond
Prices start from £1,190 GBPSave up to £1,400 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
£1,190 GBP