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Cushion|Lab Grown|IGI

3.09ct E IF Cushion Lab Grown Diamond

VG • E/IF • IGI LG770626758

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG770626758

Diamond specifications and retailer prices

From £1,733 GBP
As of October 30, 2026
Save £2,587 GBP (60%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £4,319 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 LG770626758 or 770626758. Listed at 7 retailers as of October 30, 2026, with prices from £1,733 to £4,319, a £2,587 spread on the same certified stone. Taylor and Hart lists it at £4,319. 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 angle33.6°
Pavilion angle38.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG770626758
Dimensions9.85 × 7.55 × 4.92 mm
L/W Ratio1.30
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.85 mm7.55 mm3.09 ctE / IF
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG770626758
Side View
Table 67.0%Crown 33.6°Girdle: MED-STKPavilion 38.3°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 30
Current: £1,733 GBP|Low: £1,722 GBP|High: £4,586 GBP|Avg: £2,967 GBP|-6.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Taylor and Hart
October 30, 2026
Retailer 1£1,733 GBP
Retailer 4£1,756 GBP
Retailer 2£2,000 GBP
Retailer 5£2,394 GBP
Retailer 3£3,493 GBP
Retailer 6£4,284 GBP
Taylor and Hart£4,319 GBP

42 data points across 7 retailers

7 retailers£1,733 GBP to £4,319 GBP

A
Cheapest Retailer
-
£1,733 GBP
A
Retailer 2
-
£1,756 GBP
$2,338 USD
View
A
Retailer 3
-
£2,000 GBP
€2,536 EUR
View
A
Retailer 4
-
£2,394 GBP
$3,188 USD
View
B+
Retailer 5
-
£3,493 GBP
View
Retailer 6
-
£4,284 GBP
$5,705 USD
View
Price last confirmed 9 days ago
Most Expensive
B+
Taylor and Hart
DJVO05M · Oct 30
£4,319 GBP
$5,752 USD
View
6 more retailers have this diamond
Prices start from £1,733 GBPSave up to £2,587 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
£1,733 GBP