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Cushion|Lab Grown|IGI

1.81ct D SI2 Cushion Lab Grown Diamond

D/SI2

Diamond specifications and retailer prices

From £217 GBP
As of November 7, 2026
Save £160 GBP (42%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £378 GBP at MoiMoi Australia · As of November 5, 2026
View at MoiMoi Australia

About this 1.81ct lab-grown cushion diamond

This 1.81ct lab-grown cushion sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI2 clarity (slightly-included) and certified by IGI. Listed at 2 retailers as of November 5, 2026, with prices from £217 to £378, a £160 spread on the same certified stone. MoiMoi Australia lists it at £378. 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

1.81
Carat
D
Colour
SI2
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
Dimensions6.71 × 6.54 × 4.40 mm
L/W Ratio1.03
Top View
6.71 mm6.54 mm1.81 ctD / SI2
OriginLab Grown
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI
Side View
Table 66.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 67.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 7
Current: £378 GBP|Low: £109 GBP|High: £381 GBP|Avg: £211 GBP|-0.9%
MoiMoi Australia
Retailer 2
Retailer 3
November 7, 2026
Retailer 3£109 GBP
Retailer 2£217 GBP
MoiMoi Australia£378 GBP

41 data points across 3 retailers

2 retailers£217 GBP to £378 GBP

B+
Cheapest Retailer
-
£217 GBP
Most Expensive
B+
MoiMoi Australia
251915917 · Nov 5
£378 GBP
A$778 AUD
View
1 more retailer has this diamond
Prices start from £217 GBPSave up to £160 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+
1.81ct Cushion
£217 GBP