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Cushion|Lab Grown|IGI

3.05ct E VS1 Cushion Lab Grown Diamond

VG • E/VS1 • IGI LG774651315

Shape and cutting style on the report: Cut cornered square mixed cut

Certificate IGI LG774651315

Diamond specifications and retailer prices

From £904 GBP
$1,211 USD
As of October 29, 2026
Save £3,094 GBP (77%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £3,998 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 VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG774651315 or 774651315. Listed at 17 retailers as of October 29, 2026, with prices from £904 to £3,998, a £3,094 spread on the same certified stone. Taylor and Hart lists it at £3,998. 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

3.05
Carat
E
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.1°
Pavilion angle58.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG774651315
Dimensions7.78 × 7.76 × 5.42 mm
L/W Ratio1.00
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.78 mm7.76 mm3.05 ctE / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG774651315
Side View
Table 66.0%Crown 39.1°Girdle: MED-STKPavilion 58.4°Culet: NoneDepth 69.8%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: £1,283 GBP|Low: £868 GBP|High: £3,414 GBP|Avg: £1,834 GBP|-1.0%
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
October 30, 2026
Retailer 8£904 GBP
Retailer 12£984 GBP
Retailer 14£1,011 GBP
Retailer 10£1,049 GBP
Retailer 2£1,157 GBP
Retailer 1£1,283 GBP
Retailer 7£1,522 GBP
Retailer 5£1,663 GBP
Retailer 11£1,965 GBP
Retailer 3£2,008 GBP
Retailer 13£2,366 GBP
Retailer 4£3,008 GBP
Retailer 6£3,342 GBP
Retailer 9£3,387 GBP

36 data points across 14 retailers

17 retailers£904 GBP to £3,998 GBP

A
Cheapest Retailer
-
£904 GBP
$1,211 USD
A
Retailer 2
-
£984 GBP
$1,318 USD
View
A
Retailer 3
-
£1,011 GBP
$1,355 USD
View
Final sale: no returns
A
Retailer 4
-
£1,049 GBP
$1,405 USD
View
B+
Retailer 5
-
£1,155 GBP
$1,548 USD
View
B+
Retailer 6
-
£1,157 GBP
$1,550 USD
View
B+
Retailer 7
-
£1,283 GBP
View
B+
Retailer 8
-
£1,522 GBP
View
B+
Retailer 9
-
£1,663 GBP
$2,228 USD
View
B
Retailer 10
-
£1,965 GBP
$2,633 USD
View
B
Retailer 11
-
£2,008 GBP
$2,691 USD
View
Retailer 12
-
£2,366 GBP
A$4,877 AUD
View
Price last confirmed 8 days ago
Retailer 13
-
£2,536 GBP
View
Price last confirmed 16 days ago
B
Retailer 14
-
£3,008 GBP
$4,031 USD
View
B
Retailer 15
-
£3,342 GBP
SGD 6,052 SGD
View
B
Retailer 16
-
£3,387 GBP
View
Most Expensive
B
Taylor and Hart
OIHUQ6C · Oct 30
£3,998 GBP
$5,356 USD
View
16 more retailers have this diamond
Prices start from £904 GBPSave up to £3,094 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
£904 GBP