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Cushion|Lab Grown|IGI

0.77ct D IF Cushion Lab Grown Diamond

EX • D/IF • IGI LG807613990

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

Certificate IGI LG807613990

Diamond specifications and retailer prices

From £296 GBP
As of November 3, 2026
Save £1,675 GBP (85%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £1,970 GBP at Do Amore Diamonds · As of November 4, 2026
View at Do Amore Diamonds

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 LG807613990 or 807613990. Listed at 15 retailers as of November 3, 2026, with prices from £296 to £1,970, a £1,675 spread on the same certified stone. Do Amore Diamonds lists it at £1,970. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.3°
Pavilion angle36.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG807613990
Dimensions5.35 × 5.14 × 3.40 mm
L/W Ratio1.04
Girdle conditionFaceted
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
5.35 mm5.14 mm0.77 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG807613990
Side View
Table 62.0%Crown 33.3°Girdle: MED-STKPavilion 36.8°Culet: NoneDepth 66.1%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 3
Current: £1,970 GBP|Low: £296 GBP|High: £1,970 GBP|Avg: £780 GBP
Do Amore Diamonds
Retailer 2
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Retailer 16
November 4, 2026
Retailer 9£296 GBP
Retailer 12£296 GBP
Retailer 7£353 GBP
Retailer 14£417 GBP
Retailer 3£447 GBP
Retailer 2£525 GBP
Retailer 5£622 GBP
Retailer 6£688 GBP
Retailer 8£800 GBP
Retailer 15£843 GBP
Retailer 4£862 GBP
Retailer 11£931 GBP
Retailer 13£1,010 GBP
Retailer 10£1,104 GBP
Retailer 16£1,111 GBP
Do Amore Diamonds£1,970 GBP

32 data points across 16 retailers

15 retailers£296 GBP to £1,970 GBP

A
Cheapest Retailer
-
£296 GBP
A
Retailer 2
-
£296 GBP
View
A
Retailer 3
-
£353 GBP
View
A
Retailer 4
-
£417 GBP
View
A
Retailer 5
-
£447 GBP
View
A
Retailer 6
-
£525 GBP
View
A
Retailer 7
-
£622 GBP
View
B+
Retailer 8
-
£688 GBP
View
B+
Retailer 9
-
£843 GBP
View
B+
Retailer 10
-
£862 GBP
View
B+
Retailer 11
-
£931 GBP
View
B+
Retailer 12
-
£1,010 GBP
View
B+
Retailer 13
-
£1,104 GBP
View
B+
Retailer 14
-
£1,111 GBP
View
Most Expensive
B
Do Amore Diamonds
32-LG807613990 · Nov 4
£1,970 GBP
$2,660 USD
View
14 more retailers have this diamond
Prices start from £296 GBPSave up to £1,675 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
£296 GBP