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Cushion|Lab Grown|IGI

2.74ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG804655378

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

Certificate IGI LG804655378

Diamond specifications and retailer prices

From £1,231 GBP
$1,650 USD
As of October 29, 2026
Save £6,941 GBP (85%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £8,172 GBP at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

About this 2.74ct lab-grown cushion diamond

This 2.74ct 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 LG804655378 or 804655378. Listed at 6 retailers as of October 28, 2026, with prices from £1,231 to £8,172, a £6,941 spread on the same certified stone. Brilliant Earth lists it at £8,172. 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

2.74
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.3°
Pavilion angle36.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG804655378
Dimensions7.89 × 7.87 × 5.25 mm
L/W Ratio1.00
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
7.89 mm7.87 mm2.74 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG804655378
Side View
Table 65.0%Crown 36.3°Girdle: MED-THKPavilion 36.9°Culet: NoneDepth 66.7%

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: Oct 29
Current: £8,172 GBP|Low: £1,231 GBP|High: £8,456 GBP|Avg: £3,586 GBP|-2.2%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 29, 2026
Retailer 3£1,231 GBP
Retailer 4£1,675 GBP
Retailer 5£2,050 GBP
Retailer 6£2,494 GBP
Retailer 2£3,412 GBP
Brilliant Earth£8,172 GBP

29 data points across 6 retailers

6 retailers£1,231 GBP to £8,172 GBP

A
Cheapest Retailer
-
£1,231 GBP
$1,650 USD
A
Retailer 2
-
£1,675 GBP
$2,244 USD
View
A
Retailer 3
-
£2,050 GBP
$2,747 USD
View
A
Retailer 4
-
£2,494 GBP
€3,182 EUR
View
B+
Retailer 5
-
£3,412 GBP
View
Most Expensive
B
Brilliant Earth
20529385A · Oct 28
£8,172 GBP
$10,950 USD
View
5 more retailers have this diamond
Prices start from £1,231 GBPSave up to £6,941 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
2.74ct Cushion
£1,231 GBP