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Cushion|Lab Grown|IGI

0.77ct D IF Cushion Lab Grown Diamond

VG • D/IF • IGI LG816662563

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG816662563

Diamond specifications and retailer prices

From £230 GBP
As of November 3, 2026
Save £1,129 GBP (83%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £1,360 GBP at Diamond Exchange Canada · As of November 2, 2026
View at Diamond Exchange Canada

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 very-good cut grade and certified by IGI LG816662563 or 816662563. Listed at 18 retailers as of November 2, 2026, with prices from £230 to £1,360, a £1,129 spread on the same certified stone. Diamond Exchange Canada lists it at £1,360. 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

0.77
Carat
D
Colour
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.7°
Pavilion angle37.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816662563
Dimensions5.81 × 4.89 × 3.33 mm
L/W Ratio1.19
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
5.81 mm4.89 mm0.77 ctD / IF
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816662563
Side View
Table 62.0%Crown 33.7°Girdle: MED-THKPavilion 37.4°Culet: NoneDepth 68.1%

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: £1,360 GBP|Low: £230 GBP|High: £2,615 GBP|Avg: £849 GBP
Diamond Exchange Canada
Retailer 2
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Retailer 18
November 4, 2026
Retailer 15£230 GBP
Retailer 12£301 GBP
Retailer 8£307 GBP
Retailer 4£417 GBP
Retailer 7£483 GBP
Retailer 17£513 GBP
Retailer 10£582 GBP
Retailer 2£723 GBP
Retailer 9£726 GBP
Retailer 18£775 GBP
Retailer 3£821 GBP
Retailer 5£843 GBP
Retailer 14£1,027 GBP
Retailer 11£1,066 GBP
Retailer 13£1,104 GBP
Retailer 6£1,111 GBP
Retailer 16£1,130 GBP
Diamond Exchange Canada£1,360 GBP

30 data points across 18 retailers

18 retailers£230 GBP to £1,360 GBP

A
Cheapest Retailer
-
£230 GBP
Final sale: no returns
A
Retailer 2
-
£301 GBP
View
A
Retailer 3
-
£307 GBP
View
A
Retailer 4
-
£417 GBP
View
A
Retailer 5
-
£483 GBP
View
A
Retailer 6
-
£513 GBP
View
B+
Retailer 7
-
£582 GBP
View
B+
Retailer 8
-
£723 GBP
View
B+
Retailer 9
-
£726 GBP
View
B+
Retailer 10
-
£775 GBP
View
B+
Retailer 11
-
£821 GBP
View
B+
Retailer 12
-
£843 GBP
View
B
Retailer 13
-
£1,027 GBP
View
B
Retailer 14
-
£1,066 GBP
View
B
Retailer 15
-
£1,104 GBP
View
B
Retailer 16
-
£1,111 GBP
View
B
Retailer 17
-
£1,130 GBP
View
Most Expensive
B
Diamond Exchange Canada
1995491222 · Nov 2
£1,360 GBP
CA$2,549 CAD
View
17 more retailers have this diamond
Prices start from £230 GBPSave up to £1,129 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
£230 GBP