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Cushion|Lab Grown|IGI

3.01ct J SI1 Cushion Lab Grown Diamond

VG • J/SI1 • IGI LG445061807

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG445061807

Diamond specifications and retailer prices

From £1,479 GBP
As of November 6, 2026
Save £7,223 GBP (83%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £8,703 GBP at MOH London · As of November 5, 2026
View at MOH London

About this 3.01ct lab-grown cushion diamond

This 3.01ct lab-grown cushion sits in the three to five carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG445061807 or 445061807. Listed at 6 retailers as of November 5, 2026, with prices from £1,479 to £8,703, a £7,223 spread on the same certified stone. MOH London lists it at £8,703. 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

3.01
Carat
J
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle32.9°
Pavilion angle36.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG445061807
Dimensions8.76 × 8.35 × 5.15 mm
L/W Ratio1.05
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory grown diamond was created by chemical vapor deposition process (CVD) Type IIa
Top View
8.76 mm8.35 mm3.01 ctJ / SI1
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG445061807
Side View
Table 63.5%Crown 32.9°Girdle: THK-VTKPavilion 36.6°Culet: NoneDepth 61.7%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £8,703 GBP|Low: £1,479 GBP|High: £8,843 GBP|Avg: £5,047 GBP|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 5, 2026
Retailer 2£1,479 GBP
Retailer 5£4,140 GBP
Retailer 4£4,288 GBP
Retailer 6£4,307 GBP
Retailer 7£4,739 GBP
Retailer 8£5,525 GBP
Retailer 3£6,628 GBP
MOH London£8,703 GBP

15 data points across 8 retailers

6 retailers£1,479 GBP to £8,703 GBP

B+
Cheapest Retailer
-
£1,479 GBP
B+
Retailer 2
-
£4,140 GBP
View
Final sale: no returns
Retailer 3
-
£4,288 GBP
View
Price last confirmed 25 days ago
B+
Retailer 4
-
£4,307 GBP
View
B+
Retailer 5
-
£6,628 GBP
View
Most Expensive
B
MOH London
LG445061807 · Nov 5
£8,703 GBP
View
5 more retailers have this diamond
Prices start from £1,479 GBPSave up to £7,223 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.

B+
3.01ct Cushion
£1,479 GBP