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Cushion|Lab Grown|IGI

3.09ct E IF Cushion Lab Grown Diamond

VG • E/IF • IGI LG734516207

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG734516207

Diamond specifications and retailer prices

From £1,337 GBP
$1,781 USD
As of October 29, 2026
Save £3,529 GBP (73%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £4,866 GBP at Taylor and Hart · As of October 30, 2026
View at Taylor and Hart

About this 3.09ct lab-grown cushion diamond

This 3.09ct lab-grown cushion sits in the three to five carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG734516207 or 734516207. Listed at 16 retailers as of October 29, 2026, with prices from £1,337 to £4,866, a £3,529 spread on the same certified stone. Taylor and Hart lists it at £4,866. 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

3.09
Carat
E
Colour
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.9°
Pavilion angle31°
OriginLab Grown
Grading LabIGI
CertificateIGI LG734516207
Dimensions10.96 × 7.05 × 4.60 mm
L/W Ratio1.55
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.96 mm7.05 mm3.09 ctE / IF
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG734516207
Side View
Table 67.0%Crown 37.9°Girdle: MED-STKPavilion 31°Culet: NoneDepth 65.2%

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 29
Current: £1,529 GBP|Low: £1,337 GBP|High: £5,237 GBP|Avg: £2,816 GBP|-0.6%
Retailer 1
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
Taylor and Hart
October 30, 2026
Retailer 2£1,337 GBP
Retailer 5£1,385 GBP
Retailer 15£1,513 GBP
Retailer 1£1,529 GBP
Retailer 4£1,595 GBP
Retailer 8£1,963 GBP
Retailer 11£1,981 GBP
Retailer 3£2,438 GBP
Retailer 12£3,134 GBP
Retailer 9£3,217 GBP
Retailer 6£3,342 GBP
Retailer 14£3,734 GBP
Retailer 10£3,978 GBP
Retailer 13£4,228 GBP
Retailer 7£4,629 GBP
Taylor and Hart£4,866 GBP

38 data points across 16 retailers

16 retailers£1,337 GBP to £4,866 GBP

A
Cheapest Retailer
-
£1,337 GBP
$1,781 USD
Final sale: no returns
Retailer 2
-
£1,385 GBP
$1,845 USD
View
Price last confirmed 17 days ago
A
Retailer 3
-
£1,513 GBP
$2,015 USD
View
A
Retailer 4
-
£1,529 GBP
View
A
Retailer 5
-
£1,595 GBP
$2,124 USD
View
A
Retailer 6
-
£1,963 GBP
View
A
Retailer 7
-
£1,981 GBP
$2,638 USD
View
A
Retailer 8
-
£2,438 GBP
$3,247 USD
View
Retailer 9
-
£3,134 GBP
A$6,420 AUD
View
Price last confirmed 8 days ago
B+
Retailer 10
-
£3,217 GBP
ZAR 69,204 ZAR
View
B+
Retailer 11
-
£3,342 GBP
View
B+
Retailer 12
-
£3,734 GBP
$4,972 USD
View
B+
Retailer 13
-
£3,978 GBP
View
B+
Retailer 14
-
£4,228 GBP
$5,630 USD
View
B+
Retailer 15
-
£4,629 GBP
SGD 8,331 SGD
View
Most Expensive
B+
Taylor and Hart
ODHWUV3 · Oct 30
£4,866 GBP
$6,480 USD
View
15 more retailers have this diamond
Prices start from £1,337 GBPSave up to £3,529 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
3.09ct Cushion
£1,337 GBP