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Cushion|Lab Grown|IGI

1.81ct D SI2 Cushion Lab Grown Diamond

ID • D/SI2 • IGI LG719519152

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG719519152

Diamond specifications and retailer prices

From £177 GBP
As of November 7, 2026
Save £925 GBP (84%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £1,102 GBP at Diamond Quarter · As of November 5, 2026
View at Diamond Quarter

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), with a top-tier cut grade and certified by IGI LG719519152 or 719519152. Listed at 12 retailers as of November 5, 2026, with prices from £177 to £1,102, a £925 spread on the same certified stone. Diamond Quarter lists it at £1,102. 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

1.81
Carat
D
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.7°
Pavilion angle28.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG719519152
Dimensions6.71 × 6.54 × 4.40 mm
L/W Ratio1.03
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.71 mm6.54 mm1.81 ctD / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG719519152
Side View
Table 66.0%Crown 36.7°Girdle: MED-VTKPavilion 28.3°Culet: NoneDepth 67.3%

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 7
Current: £177 GBP|Low: £160 GBP|High: £1,509 GBP|Avg: £500 GBP|-3.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 7, 2026
Retailer 1£177 GBP
Retailer 11£178 GBP
Retailer 3£241 GBP
Retailer 6£296 GBP
Retailer 5£321 GBP
Retailer 2£435 GBP
Retailer 10£436 GBP
Retailer 7£462 GBP
Retailer 4£827 GBP
Retailer 9£867 GBP
Retailer 8£1,053 GBP

44 data points across 11 retailers

12 retailers£177 GBP to £1,102 GBP

A
Cheapest Retailer
-
£177 GBP
Final sale: no returns
A
Retailer 2
-
£178 GBP
View
B+
Retailer 3
-
£241 GBP
View
A
Retailer 4
-
£296 GBP
View
A
Retailer 5
-
£321 GBP
View
A
Retailer 6
-
£435 GBP
View
A
Retailer 7
-
£436 GBP
View
B+
Retailer 8
-
£462 GBP
View
B+
Retailer 9
-
£827 GBP
View
B
Retailer 10
-
£867 GBP
View
B
Retailer 11
-
£1,053 GBP
View
Most Expensive
B
Diamond Quarter
1.81SI2DLG595B42N · Nov 5
£1,102 GBP
View
11 more retailers have this diamond
Prices start from £177 GBPSave up to £925 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
1.81ct Cushion
£177 GBP