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Cushion|Lab Grown|IGI

0.81ct D SI1 Cushion Lab Grown Diamond

GD • D/SI1 • IGI LG607366465

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG607366465

Diamond specifications and retailer prices

From £530 GBP
$710 USD
As of October 26, 2026
Save £164 GBP (24%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £694 GBP at MOH London · As of October 26, 2026
View at MOH London

About this 0.81ct lab-grown cushion diamond

This 0.81ct lab-grown cushion sits in the just-under-one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by IGI LG607366465 or 607366465. Listed at 3 retailers as of October 26, 2026, with prices from £530 to £694, a £164 spread on the same certified stone. MOH London lists it at £694. 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

0.81
Carat
D
Colour
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle38.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG607366465
Dimensions5.34 × 5.33 × 3.64 mm
L/W Ratio1.00
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
5.34 mm5.33 mm0.81 ctD / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG607366465
Side View
Table 60.0%Crown 36.5°Girdle: MED-STKPavilion 38.9°Culet: NoneDepth 68.3%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 26
Current: £694 GBP|Low: £209 GBP|High: £701 GBP|Avg: £399 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 25, 2026
Retailer 6£209 GBP
Retailer 2£249 GBP
Retailer 5£253 GBP
Retailer 7£257 GBP
Retailer 3£394 GBP
Retailer 8£441 GBP
Retailer 4£530 GBP
Retailer 9£567 GBP
MOH London£694 GBP

11 data points across 9 retailers

3 retailers£530 GBP to £694 GBP

Retailer 1
-
£249 GBP
$333 USD
Price last confirmed 6 days ago
B
Retailer 2
-
£530 GBP
$710 USD
View
Most Expensive
B
MOH London
LG607366465 · Oct 26
£694 GBP
View
2 more retailers have this diamond
Prices start from £530 GBPSave up to £164 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
0.81ct Cushion
£530 GBP