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Cushion|Lab Grown|IGI

0.77ct D IF Cushion Lab Grown Diamond

ID • D/IF • IGI LG741580439

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

Certificate IGI LG741580439

Diamond specifications and retailer prices

From £310 GBP
As of November 3, 2026
Save £1,035 GBP (77%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £1,345 GBP at MOH London · As of November 3, 2026
View at MOH London

About this 0.77ct lab-grown cushion diamond

This 0.77ct lab-grown cushion sits in the just-under-one-carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG741580439 or 741580439. Listed at 16 retailers as of November 3, 2026, with prices from £310 to £1,345, a £1,035 spread on the same certified stone. MOH London lists it at £1,345. Flawless clarity in sub-one-carat stones is rarely visible to the naked eye over VS1, so you are paying a meaningful premium for grade rather than appearance.

The 4Cs

0.77
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.6°
Pavilion angle39.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG741580439
Dimensions5.34 × 5.34 × 3.49 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 mm5.34 mm0.77 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG741580439
Side View
Table 67.0%Crown 36.6°Girdle: MED-STKPavilion 39.6°Culet: NoneDepth 65.4%

Caratlytics Score

How it works →
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 3
Current: £1,345 GBP|Low: £310 GBP|High: £1,361 GBP|Avg: £696 GBP|-1.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 4, 2026
Retailer 3£310 GBP
Retailer 9£330 GBP
Retailer 10£344 GBP
Retailer 12£510 GBP
Retailer 7£550 GBP
Retailer 6£567 GBP
Retailer 2£616 GBP
Retailer 5£624 GBP
Retailer 8£876 GBP
Retailer 11£915 GBP
Retailer 4£1,343 GBP
MOH London£1,345 GBP

43 data points across 12 retailers

16 retailers£310 GBP to £1,345 GBP

A
Cheapest Retailer
-
£310 GBP
Final sale: no returns
Retailer 2
-
£330 GBP
View
Price last confirmed 14 days ago
Retailer 3
-
£344 GBP
View
Price last confirmed 10 days ago
A
Retailer 4
-
£379 GBP
View
A
Retailer 5
-
£415 GBP
View
A
Retailer 6
-
£510 GBP
View
A
Retailer 7
-
£550 GBP
View
A
Retailer 8
-
£567 GBP
View
A
Retailer 9
-
£616 GBP
View
B+
Retailer 10
-
£624 GBP
View
B+
Retailer 11
-
£876 GBP
View
B+
Retailer 12
-
£915 GBP
View
B
Retailer 13
-
£1,136 GBP
View
B
Retailer 14
-
£1,297 GBP
View
B
Retailer 15
-
£1,343 GBP
View
Most Expensive
B
MOH London
LG741580439 · Nov 3
£1,345 GBP
View
15 more retailers have this diamond
Prices start from £310 GBPSave up to £1,035 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
0.77ct Cushion
£310 GBP