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Cushion|Lab Grown|IGI

3.05ct E IF Cushion Lab Grown Diamond

ID • E/IF • IGI LG840609765

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG840609765

Diamond specifications and retailer prices

From £3,169 GBP
$4,246 USD
As of October 31, 2026
Save £9,200 GBP (74%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £12,368 GBP at Taylor and Hart · As of October 30, 2026
View at Taylor and Hart

About this 3.05ct lab-grown cushion diamond

This 3.05ct lab-grown cushion sits in the three to five carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG840609765 or 840609765. Listed at 10 retailers as of October 30, 2026, with prices from £3,169 to £12,368, a £9,200 spread on the same certified stone. Taylor and Hart lists it at £12,368. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

3.05
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle37.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840609765
Dimensions10.79 × 7.64 × 4.66 mm
L/W Ratio1.41
Girdle conditionFaceted
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.79 mm7.64 mm3.05 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840609765
Side View
Table 57.0%Crown 34.9°Girdle: MED-STKPavilion 37.4°Culet: LargeDepth 61.0%

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: £5,692 GBP|Low: £3,169 GBP|High: £12,368 GBP|Avg: £7,220 GBP
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Taylor and Hart
October 31, 2026
Retailer 8£3,169 GBP
Retailer 2£3,364 GBP
Retailer 3£4,577 GBP
Retailer 9£5,159 GBP
Retailer 1£5,692 GBP
Retailer 4£8,090 GBP
Retailer 6£8,142 GBP
Retailer 5£8,504 GBP
Retailer 7£12,033 GBP
Taylor and Hart£12,368 GBP

12 data points across 10 retailers

10 retailers£3,169 GBP to £12,368 GBP

A
Cheapest Retailer
-
£3,169 GBP
$4,246 USD
B+
Retailer 2
-
£3,364 GBP
$4,508 USD
View
Final sale: no returns
B+
Retailer 3
-
£4,577 GBP
View
B
Retailer 4
-
£5,159 GBP
$6,912 USD
View
B+
Retailer 5
-
£5,692 GBP
€7,264 EUR
View
B
Retailer 6
-
£8,090 GBP
ZAR 175,121 ZAR
View
B
Retailer 7
-
£8,142 GBP
$10,910 USD
View
B
Retailer 8
-
£8,504 GBP
$11,394 USD
View
B
Retailer 9
-
£12,033 GBP
SGD 21,787 SGD
View
Most Expensive
B
Taylor and Hart
L5T8QL2 · Oct 30
£12,368 GBP
$16,572 USD
View
9 more retailers have this diamond
Prices start from £3,169 GBPSave up to £9,200 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
3.05ct Cushion
£3,169 GBP