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Cushion|Lab Grown|IGI

2.77ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG744515029

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

Certificate IGI LG744515029

Diamond specifications and retailer prices

From £1,162 GBP
$1,548 USD
As of October 29, 2026
Save £7,083 GBP (86%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £8,245 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 2.77ct lab-grown cushion diamond

This 2.77ct lab-grown cushion sits in the two to three carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG744515029 or 744515029. Listed at 11 retailers as of October 29, 2026, with prices from £1,162 to £8,245, a £7,083 spread on the same certified stone. Brilliant Earth lists it at £8,245. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

2.77
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.2°
Pavilion angle38.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG744515029
Dimensions8.30 × 8.05 × 5.36 mm
L/W Ratio1.03
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
8.30 mm8.05 mm2.77 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG744515029
Side View
Table 60.0%Crown 36.2°Girdle: MED-THKPavilion 38.5°Culet: NoneDepth 66.6%

Caratlytics Score

How it works →
A+
Exceptional
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: £8,245 GBP|Low: £1,162 GBP|High: £9,597 GBP|Avg: £3,703 GBP|-3.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 29, 2026
Retailer 6£1,162 GBP
Retailer 10£1,164 GBP
Retailer 5£1,670 GBP
Retailer 3£1,747 GBP
Retailer 11£1,824 GBP
Retailer 2£1,975 GBP
Retailer 8£2,965 GBP
Retailer 4£3,753 GBP
Retailer 9£4,581 GBP
Retailer 7£8,057 GBP
Brilliant Earth£8,245 GBP

31 data points across 11 retailers

11 retailers£1,162 GBP to £8,245 GBP

A+
Cheapest Retailer
-
£1,162 GBP
$1,548 USD
A
Retailer 2
-
£1,164 GBP
$1,550 USD
View
A
Retailer 3
-
£1,670 GBP
$2,224 USD
View
A
Retailer 4
-
£1,747 GBP
$2,326 USD
View
Final sale: no returns
A
Retailer 5
-
£1,824 GBP
$2,429 USD
View
A
Retailer 6
-
£1,975 GBP
€2,505 EUR
View
A
Retailer 7
-
£2,965 GBP
$3,948 USD
View
B+
Retailer 8
-
£3,753 GBP
View
Retailer 9
-
£4,581 GBP
$6,100 USD
View
Price last confirmed 8 days ago
B
Retailer 10
-
£8,057 GBP
$10,730 USD
View
Most Expensive
B
Brilliant Earth
17399006Y · Oct 29
£8,245 GBP
$10,980 USD
View
10 more retailers have this diamond
Prices start from £1,162 GBPSave up to £7,083 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+
2.77ct Cushion
£1,162 GBP