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Cushion|Lab Grown|IGI

3.05ct F SI2 Cushion Lab Grown Diamond

ID • F/SI2 • IGI LG625428284

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG625428284

Diamond specifications and retailer prices

From £353 GBP
As of November 6, 2026
Save £1,131 GBP (76%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £1,484 GBP at MOH London · As of November 5, 2026
View at MOH London

About this 3.05ct lab-grown cushion diamond

This 3.05ct lab-grown cushion sits in the three to five carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG625428284 or 625428284. Listed at 11 retailers as of November 5, 2026, with prices from £353 to £1,484, a £1,131 spread on the same certified stone. MOH London lists it at £1,484. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

3.05
Carat
F
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle35.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG625428284
Dimensions10.45 × 7.73 × 4.97 mm
L/W Ratio1.35
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
10.45 mm7.73 mm3.05 ctF / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG625428284
Side View
Table 60.0%Crown 34.5°Girdle: THN-MEDPavilion 35.4°Culet: NoneDepth 64.3%

Caratlytics Score

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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: Nov 6
Current: £1,484 GBP|Low: £344 GBP|High: £2,705 GBP|Avg: £900 GBP|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 5£353 GBP
Retailer 9£381 GBP
Retailer 8£510 GBP
Retailer 2£603 GBP
Retailer 10£607 GBP
Retailer 3£616 GBP
Retailer 4£922 GBP
Retailer 6£1,434 GBP
Retailer 7£1,457 GBP
MOH London£1,484 GBP

44 data points across 10 retailers

11 retailers£353 GBP to £1,484 GBP

A
Cheapest Retailer
-
£353 GBP
Final sale: no returns
Retailer 2
-
£381 GBP
View
Price last confirmed 12 days ago
B+
Retailer 3
-
£510 GBP
View
A
Retailer 4
-
£603 GBP
View
A
Retailer 5
-
£607 GBP
View
A
Retailer 6
-
£616 GBP
View
A
Retailer 7
-
£720 GBP
View
B+
Retailer 8
-
£922 GBP
View
B
Retailer 9
-
£1,434 GBP
View
B
Retailer 10
-
£1,457 GBP
View
Most Expensive
B+
MOH London
LG625428284 · Nov 5
£1,484 GBP
View
10 more retailers have this diamond
Prices start from £353 GBPSave up to £1,131 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
£353 GBP