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Cushion|Lab Grown|IGI

1.43ct E FL Cushion Lab Grown Diamond

VG • E/FL • IGI LG831698070

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG831698070

Diamond specifications and retailer prices

From £375 GBP
$503 USD
As of October 30, 2026
Save £2,035 GBP (84%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £2,411 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.43ct lab-grown cushion diamond

This 1.43ct lab-grown cushion sits in the one-and-a-quarter to one-and-a-half carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG831698070 or 831698070. Listed at 12 retailers as of October 29, 2026, with prices from £375 to £2,411, a £2,035 spread on the same certified stone. Brilliant Earth lists it at £2,411. 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

1.43
Carat
E
Colour
FL
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle34.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG831698070
Dimensions8.22 × 5.57 × 3.80 mm
L/W Ratio1.48
Girdle conditionFaceted
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
8.22 mm5.57 mm1.43 ctE / FL
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG831698070
Side View
Table 59.0%Crown 34.9°Girdle: MED-THKPavilion 34.4°Culet: NoneDepth 68.2%

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 30
Current: £441 GBP|Low: £375 GBP|High: £1,535 GBP|Avg: £774 GBP|+0.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 30, 2026
Retailer 2£375 GBP
Retailer 1£441 GBP
Retailer 11£522 GBP
Retailer 5£639 GBP
Retailer 9£652 GBP
Retailer 4£688 GBP
Retailer 7£714 GBP
Retailer 8£841 GBP
Retailer 3£1,319 GBP
Retailer 10£1,361 GBP
Retailer 6£1,535 GBP

6 data points across 11 retailers

12 retailers£375 GBP to £2,411 GBP

A
Cheapest Retailer
-
£375 GBP
$503 USD
Final sale: no returns
A
Retailer 2
-
£441 GBP
View
A
Retailer 3
-
£522 GBP
$700 USD
View
A
Retailer 4
-
£639 GBP
€815 EUR
View
A
Retailer 5
-
£652 GBP
$873 USD
View
A
Retailer 6
-
£688 GBP
View
A
Retailer 7
-
£714 GBP
ZAR 15,466 ZAR
View
B+
Retailer 8
-
£841 GBP
$1,127 USD
View
B+
Retailer 9
-
£1,319 GBP
SGD 2,389 SGD
View
B
Retailer 10
-
£1,361 GBP
$1,823 USD
View
B
Retailer 11
-
£1,535 GBP
View
Most Expensive
B
Brilliant Earth
22262619A · Oct 29
£2,411 GBP
$3,230 USD
View
11 more retailers have this diamond
Prices start from £375 GBPSave up to £2,035 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
1.43ct Cushion
£375 GBP