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Cushion|Lab Grown|IGI

1.00ct D SI1 Cushion Lab Grown Diamond

ID • D/SI1 • IGI LG769648796

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG769648796

Diamond specifications and retailer prices

From £222 GBP
As of November 6, 2026
Save £390 GBP (64%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £612 GBP at MOH London · As of November 2, 2026
View at MOH London

About this 1ct lab-grown cushion diamond

This 1ct lab-grown cushion sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG769648796 or 769648796. Listed at 7 retailers as of November 2, 2026, with prices from £222 to £612, a £390 spread on the same certified stone. MOH London lists it at £612. 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

1.00
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle35.1°
Pavilion angle33.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG769648796
Dimensions5.83 × 5.75 × 3.57 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
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
5.83 mm5.75 mm1.00 ctD / SI1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG769648796
Side View
Table 65.0%Crown 35.1°Girdle: MED-VTKPavilion 33.6°Culet: NoneDepth 62.1%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 6
Current: £612 GBP|Low: £216 GBP|High: £620 GBP|Avg: £325 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 2£222 GBP
Retailer 6£234 GBP
Retailer 5£244 GBP
Retailer 3£248 GBP
Retailer 4£385 GBP
MOH London£612 GBP

43 data points across 6 retailers

7 retailers£222 GBP to £612 GBP

A
Cheapest Retailer
-
£222 GBP
A
Retailer 2
-
£234 GBP
View
A
Retailer 3
-
£244 GBP
View
A
Retailer 4
-
£248 GBP
View
B+
Retailer 5
-
£385 GBP
View
B
Retailer 6
-
£462 GBP
View
Most Expensive
B
MOH London
LG769648796 · Nov 2
£612 GBP
View
6 more retailers have this diamond
Prices start from £222 GBPSave up to £390 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
1.00ct Cushion
£222 GBP