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Cushion|Lab Grown|IGI

1.06ct D SI2 Cushion Lab Grown Diamond

GD • D/SI2 • IGI LG500148308

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG500148308

Diamond specifications and retailer prices

From £189 GBP
As of November 6, 2026
Save £688 GBP (78%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £877 GBP at MOH London · As of November 1, 2026
View at MOH London

About this 1.06ct lab-grown cushion diamond

This 1.06ct lab-grown cushion sits in the classic one-carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a standard cut grade and certified by IGI LG500148308 or 500148308. Listed at 7 retailers as of November 1, 2026, with prices from £189 to £877, a £688 spread on the same certified stone. MOH London lists it at £877. 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

1.06
Carat
D
Colour
SI2
Clarity
Good
Cut

Specifications

CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle36.1°
Pavilion angle34.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG500148308
Dimensions5.85 × 5.69 × 3.80 mm
L/W Ratio1.03
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
5.85 mm5.69 mm1.06 ctD / SI2
OriginLab Grown
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG500148308
Side View
Table 61.5%Crown 36.1°Girdle: STK-VTKPavilion 34.4°Culet: NoneDepth 66.8%

Caratlytics Score

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

Price History

Last verified: Nov 6
Current: £877 GBP|Low: £189 GBP|High: £887 GBP|Avg: £406 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 7£189 GBP
Retailer 4£198 GBP
Retailer 5£340 GBP
Retailer 3£347 GBP
Retailer 2£409 GBP
Retailer 6£431 GBP
MOH London£877 GBP

43 data points across 7 retailers

7 retailers£189 GBP to £877 GBP

B+
Cheapest Retailer
-
£189 GBP
Retailer 2
-
£198 GBP
View
Price last confirmed 13 days ago
B+
Retailer 3
-
£340 GBP
View
B+
Retailer 4
-
£347 GBP
View
B
Retailer 5
-
£409 GBP
View
B
Retailer 6
-
£431 GBP
View
Most Expensive
C
MOH London
LG500148308 · Nov 1
£877 GBP
View
6 more retailers have this diamond
Prices start from £189 GBPSave up to £688 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+
1.06ct Cushion
£189 GBP