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Cushion|Lab Grown|IGI

3.05ct E VS1 Cushion Lab Grown Diamond

EX • E/VS1 • IGI LG751512311

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG751512311

Diamond specifications and retailer prices

From £658 GBP
$881 USD
As of October 29, 2026
Save £4,223 GBP (87%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £4,881 GBP at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

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 top-tier cut grade and certified by IGI LG751512311 or 751512311. Listed at 16 retailers as of October 29, 2026, with prices from £658 to £4,881, a £4,223 spread on the same certified stone. Do Amore Diamonds lists it at £4,881. 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
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG751512311
Dimensions8.43 × 8.43 × 8.48 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Top View
8.43 mm8.43 mm3.05 ctE / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG751512311
Side View
Table 61.0%Crown 34.4°Girdle: MED-THKPavilion 39.5°Culet: NoneDepth 66.2%

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: £4,881 GBP|Low: £616 GBP|High: £5,142 GBP|Avg: £1,912 GBP
Do Amore Diamonds
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
Retailer 16
Retailer 17
October 30, 2026
Retailer 17£637 GBP
Retailer 12£658 GBP
Retailer 15£787 GBP
Retailer 6£794 GBP
Retailer 2£861 GBP
Retailer 8£896 GBP
Retailer 10£1,078 GBP
Retailer 14£1,588 GBP
Retailer 11£1,634 GBP
Retailer 16£1,857 GBP
Retailer 7£1,945 GBP
Retailer 4£2,150 GBP
Retailer 5£2,155 GBP
Retailer 9£2,514 GBP
Retailer 13£2,642 GBP
Retailer 3£4,627 GBP
Do Amore Diamonds£4,881 GBP

37 data points across 17 retailers

16 retailers£658 GBP to £4,881 GBP

Retailer 1
-
£637 GBP
$854 USD
Price last confirmed 18 days ago
A
Retailer 2
-
£658 GBP
$881 USD
View
Final sale: no returns
A
Retailer 3
-
£787 GBP
$1,055 USD
View
A
Retailer 4
-
£794 GBP
$1,064 USD
View
A
Retailer 5
-
£861 GBP
View
A
Retailer 6
-
£896 GBP
$1,201 USD
View
A
Retailer 7
-
£1,078 GBP
View
Retailer 8
-
£1,588 GBP
A$3,273 AUD
View
Price last confirmed 9 days ago
B+
Retailer 9
-
£1,634 GBP
ZAR 35,372 ZAR
View
Retailer 10
-
£1,857 GBP
A$3,828 AUD
View
Price last confirmed 22 days ago
B
Retailer 11
-
£1,945 GBP
View
B
Retailer 12
-
£2,150 GBP
$2,881 USD
View
B
Retailer 13
-
£2,155 GBP
$2,888 USD
View
B
Retailer 14
-
£2,514 GBP
$3,368 USD
View
B
Retailer 15
-
£2,642 GBP
View
Most Expensive
B
Do Amore Diamonds
27-34FDB8677 · Oct 29
£4,881 GBP
$6,540 USD
View
15 more retailers have this diamond
Prices start from £658 GBPSave up to £4,223 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
£658 GBP