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Cushion|Lab Grown|IGI

1.81ct D SI2 Cushion Lab Grown Diamond

D/SI2

Diamond specifications and retailer prices

From $291 USD
£230 GBP
As of November 1, 2026
Save $213 USD (42%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $504 USD at MoiMoi Australia · As of November 1, 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 1, 2026, with prices from $291 to $504, a $213 spread on the same certified stone. MoiMoi Australia lists it at $504. 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
Color
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 1
Current: $504 USD|Low: $146 USD|High: $510 USD|Avg: $276 USD|-1.1%
MoiMoi Australia
Retailer 2
Retailer 3
November 1, 2026
Retailer 3$146 USD
Retailer 2$291 USD
MoiMoi Australia$504 USD

35 data points across 3 retailers

2 retailers$291 USD to $504 USD

B+
Cheapest Retailer
-
$291 USD
£230 GBP
Most Expensive
B+
MoiMoi Australia
251915917 · Nov 1
$504 USD
A$776 AUD
View
1 more retailer has this diamond
Prices start from $291 USDSave up to $213 USD

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
$291 USD