Cushion|Lab Grown|IGI

3.05ct D VS2 Cushion Lab Grown Diamond

GD • D/VS2 • IGI LG658493565

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG658493565

Diamond specifications and retailer prices

From £642 GBP
$860 USD
As of October 29, 2026
Save £3,553 GBP (85%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £4,194 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 3.05ct lab-grown cushion diamond

This 3.05ct lab-grown cushion sits in the three to five carat band, graded D colour (colourless) and VS2 clarity (very-slightly-included), with a standard cut grade and certified by IGI LG658493565 or 658493565. Listed at 14 retailers as of October 29, 2026, with prices from £642 to £4,194, a £3,553 spread on the same certified stone. Brilliant Earth lists it at £4,194. 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
D
Colour
VS2
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.3°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG658493565
Dimensions8.48 × 8.36 × 5.59 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.48 mm8.36 mm3.05 ctD / VS2
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG658493565
Side View
Table 62.0%Crown 36.3°Girdle: MediumPavilion 39.5°Culet: NoneDepth 66.9%

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: £4,194 GBP|Low: £457 GBP|High: £4,321 GBP|Avg: £1,365 GBP|-2.9%
Brilliant Earth
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
October 30, 2026
Retailer 11£457 GBP
Retailer 6£531 GBP
Retailer 12£642 GBP
Retailer 8£657 GBP
Retailer 4£711 GBP
Retailer 14£733 GBP
Retailer 2£760 GBP
Retailer 15£952 GBP
Retailer 7£1,081 GBP
Retailer 3£1,490 GBP
Retailer 13£1,710 GBP
Retailer 10£1,843 GBP
Retailer 9£1,918 GBP
Retailer 5£2,729 GBP
Brilliant Earth£4,194 GBP

35 data points across 15 retailers

14 retailers£642 GBP to £4,194 GBP

Retailer 1
-
£457 GBP
$612 USD
Price last confirmed 13 days ago
Retailer 2
-
£531 GBP
View
Price last confirmed 22 days ago
B+
Retailer 3
-
£642 GBP
$860 USD
View
A
Retailer 4
-
£657 GBP
€839 EUR
View
B+
Retailer 5
-
£711 GBP
$953 USD
View
B+
Retailer 6
-
£733 GBP
$982 USD
View
B+
Retailer 7
-
£760 GBP
View
B+
Retailer 8
-
£952 GBP
$1,276 USD
View
Retailer 9
-
£1,490 GBP
$1,996 USD
View
Price last confirmed 12 days ago
B
Retailer 10
-
£1,710 GBP
$2,291 USD
View
Retailer 11
-
£1,843 GBP
$2,470 USD
View
Price last confirmed 9 days ago
B
Retailer 12
-
£1,918 GBP
View
B
Retailer 13
-
£2,729 GBP
$3,656 USD
View
Most Expensive
C
Brilliant Earth
11923040A · Oct 29
£4,194 GBP
$5,620 USD
View
13 more retailers have this diamond
Prices start from £642 GBPSave up to £3,553 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
£642 GBP