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Cushion|Lab Grown|IGI

2.80ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG840629975

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG840629975

Diamond specifications and retailer prices

From £1,321 GBP
As of October 30, 2026
Save £4,195 GBP (76%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £5,515 GBP at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 2.8ct lab-grown cushion diamond

This 2.8ct 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 LG840629975 or 840629975. Listed at 11 retailers as of October 30, 2026, with prices from £1,321 to £5,515, a £4,195 spread on the same certified stone. Brilliant Earth lists it at £5,515. 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

2.80
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle36°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840629975
Dimensions10.34 × 6.95 × 4.74 mm
L/W Ratio1.49
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
10.34 mm6.95 mm2.80 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840629975
Side View
Table 59.0%Crown 34.5°Girdle: THK-VTKPavilion 36°Culet: NoneDepth 68.2%

Caratlytics Score

How it works →
A
Excellent
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 30
Current: £5,515 GBP|Low: £1,321 GBP|High: £6,344 GBP|Avg: £3,079 GBP|-13.1%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 30, 2026
Retailer 4£1,321 GBP
Retailer 2£1,355 GBP
Retailer 10£1,378 GBP
Retailer 5£1,688 GBP
Retailer 7£2,382 GBP
Retailer 8£2,889 GBP
Retailer 9£3,086 GBP
Retailer 3£3,286 GBP
Retailer 6£4,206 GBP
Retailer 11£4,823 GBP
Brilliant Earth£5,515 GBP

2 data points across 11 retailers

11 retailers£1,321 GBP to £5,515 GBP

A
Cheapest Retailer
-
£1,321 GBP
A
Retailer 2
-
£1,355 GBP
$1,815 USD
View
A
Retailer 3
-
£1,378 GBP
$1,847 USD
View
Final sale: no returns
A
Retailer 4
-
£1,688 GBP
View
A
Retailer 5
-
£2,382 GBP
$3,191 USD
View
B+
Retailer 6
-
£2,889 GBP
View
B+
Retailer 7
-
£3,086 GBP
ZAR 66,810 ZAR
View
B+
Retailer 8
-
£3,286 GBP
$4,403 USD
View
B+
Retailer 9
-
£4,206 GBP
$5,636 USD
View
B
Retailer 10
-
£4,823 GBP
SGD 8,732 SGD
View
Most Expensive
B
Brilliant Earth
22348593A · Oct 30
£5,515 GBP
$7,390 USD
View
10 more retailers have this diamond
Prices start from £1,321 GBPSave up to £4,195 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
2.80ct Cushion
£1,321 GBP