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Cushion|Lab Grown|IGI

4.14ct E SI1 Cushion Lab Grown Diamond

VG • E/SI1 • IGI LG720532965

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG720532965

Diamond specifications and retailer prices

From £569 GBP
$763 USD
As of October 31, 2026
Save £1,998 GBP (78%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £2,750 GBP at Rare Carat · As of October 19, 2026
View at Rare Carat

About this 4.14ct lab-grown cushion diamond

This 4.14ct lab-grown cushion sits in the three to five carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG720532965 or 720532965. Listed at 15 retailers as of October 31, 2026, with a 351% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

4.14
Carat
E
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.3°
Pavilion angle36°
OriginLab Grown
Grading LabIGI
CertificateIGI LG720532965
Dimensions11.54 × 7.97 × 5.45 mm
L/W Ratio1.45
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.54 mm7.97 mm4.14 ctE / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG720532965
Side View
Table 66.0%Crown 37.3°Girdle: MED-STKPavilion 36°Culet: 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: Oct 31
Current: £2,750 GBP|Low: £395 GBP|High: £4,724 GBP|Avg: £1,641 GBP|+3.5%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 31, 2026
Retailer 5£569 GBP
Retailer 10£642 GBP
Retailer 4£881 GBP
Retailer 11£894 GBP
Retailer 2£947 GBP
Retailer 6£1,017 GBP
Retailer 9£1,367 GBP
Retailer 3£1,508 GBP
Retailer 12£2,209 GBP
Retailer 8£2,501 GBP
Retailer 7£2,567 GBP
Rare Carat£2,750 GBP

41 data points across 12 retailers

15 retailers£569 GBP to £2,567 GBP

A
Cheapest Retailer
-
£569 GBP
$763 USD
Final sale: no returns
A
Retailer 2
-
£642 GBP
$860 USD
View
A
Retailer 3
-
£764 GBP
HK$8,000 HKD
View
B+
Retailer 4
-
£881 GBP
$1,181 USD
View
B+
Retailer 5
-
£894 GBP
$1,198 USD
View
A
Retailer 6
-
£947 GBP
€1,208 EUR
View
B+
Retailer 7
-
£1,017 GBP
View
B
Retailer 8
-
£1,367 GBP
$1,831 USD
View
B+
Retailer 9
-
£1,508 GBP
$2,021 USD
View
B
Retailer 10
-
£1,886 GBP
$2,527 USD
View
B
Retailer 11
-
£2,209 GBP
SGD 4,000 SGD
View
B
Retailer 12
-
£2,267 GBP
$3,038 USD
View
B
Retailer 13
-
£2,501 GBP
View
B
Retailer 14
-
£2,567 GBP
$3,440 USD
View
Most Expensive
Rare Carat
NGB-10-469 · Oct 19
£2,750 GBP
$3,685 USD
View
Price last confirmed 13 days ago
14 more retailers have this diamond
Prices start from £569 GBPSave up to £1,998 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
4.14ct Cushion
£569 GBP