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Cushion|Lab Grown|IGI

0.78ct D IF Cushion Lab Grown Diamond

VG • D/IF • IGI LG807613988

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

Certificate IGI LG807613988

Diamond specifications and retailer prices

From £304 GBP
As of November 3, 2026
Save £1,688 GBP (85%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £1,993 GBP at Do Amore Diamonds · As of November 4, 2026
View at Do Amore Diamonds

About this 0.78ct lab-grown cushion diamond

This 0.78ct lab-grown cushion sits in the just-under-one-carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG807613988 or 807613988. Listed at 14 retailers as of November 3, 2026, with prices from £304 to £1,993, a £1,688 spread on the same certified stone. Do Amore Diamonds lists it at £1,993. 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

0.78
Carat
D
Colour
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle36.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG807613988
Dimensions5.29 × 5.14 × 3.49 mm
L/W Ratio1.03
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
5.29 mm5.14 mm0.78 ctD / IF
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG807613988
Side View
Table 63.0%Crown 34.1°Girdle: MED-STKPavilion 36.8°Culet: NoneDepth 67.9%

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 3
Current: £1,993 GBP|Low: £304 GBP|High: £1,993 GBP|Avg: £810 GBP
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
November 3, 2026
Retailer 13£304 GBP
Retailer 3£307 GBP
Retailer 6£358 GBP
Retailer 10£422 GBP
Retailer 14£487 GBP
Retailer 9£530 GBP
Retailer 4£704 GBP
Retailer 5£741 GBP
Retailer 7£807 GBP
Retailer 15£873 GBP
Retailer 8£1,037 GBP
Retailer 2£1,119 GBP
Retailer 12£1,126 GBP
Retailer 11£1,153 GBP
Do Amore Diamonds£1,993 GBP

27 data points across 15 retailers

14 retailers£304 GBP to £1,993 GBP

A
Cheapest Retailer
-
£304 GBP
A
Retailer 2
-
£307 GBP
View
A
Retailer 3
-
£358 GBP
View
A
Retailer 4
-
£422 GBP
View
A
Retailer 5
-
£487 GBP
View
A
Retailer 6
-
£530 GBP
View
Retailer 7
-
£704 GBP
View
Price last confirmed 27 days ago
B+
Retailer 8
-
£741 GBP
View
B+
Retailer 9
-
£873 GBP
View
B
Retailer 10
-
£1,037 GBP
View
B
Retailer 11
-
£1,119 GBP
View
B
Retailer 12
-
£1,126 GBP
View
B
Retailer 13
-
£1,153 GBP
View
Most Expensive
B
Do Amore Diamonds
32-LG807613988 · Nov 4
£1,993 GBP
$2,690 USD
View
13 more retailers have this diamond
Prices start from £304 GBPSave up to £1,688 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
0.78ct Cushion
£304 GBP