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Cushion|Lab Grown|GIA

2.90ct D IF Cushion Lab Grown Diamond

ID • D/IF • GIA 1509303535

Certificate GIA 1509303535

Diamond specifications and retailer prices

From £1,459 GBP
$1,938 USD
As of October 27, 2026
Save £6,406 GBP (81%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £7,864 GBP at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

About this 2.9ct lab-grown cushion diamond

This 2.9ct lab-grown cushion sits in the two to three carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1509303535. Listed at 5 retailers as of October 27, 2026, with prices from £1,459 to £7,864, a £6,406 spread on the same certified stone. Brilliant Earth lists it at £7,864. 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

2.90
Carat
D
Colour
IF
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabGIA
CertificateGIA 1509303535
Dimensions8.15 × 7.94 × 5.43 mm
L/W Ratio1.03
Girdle conditionFaceted
Cert comments
An additional inscription is present. This is a man-made diamond.
Key to symbols
Minor Details of Polish
Top View
8.15 mm7.94 mm2.90 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1509303535
Side View
Table 58.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 68.5%

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 27
Current: £7,864 GBP|Low: £1,062 GBP|High: £7,864 GBP|Avg: £4,127 GBP|+27.6%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 25, 2026
Retailer 5£1,459 GBP
Retailer 4£3,452 GBP
Retailer 3£4,285 GBP
Retailer 2£4,768 GBP
Brilliant Earth£7,864 GBP

21 data points across 5 retailers

5 retailers£1,459 GBP to £7,864 GBP

A+
Cheapest Retailer
-
£1,459 GBP
$1,938 USD
Final sale: no returns
B+
Retailer 2
-
£3,452 GBP
View
B+
Retailer 3
-
£4,285 GBP
ZAR 91,992 ZAR
View
B+
Retailer 4
-
£4,768 GBP
View
Most Expensive
B
Brilliant Earth
11779263Y · Oct 28
£7,864 GBP
$10,450 USD
View
4 more retailers have this diamond
Prices start from £1,459 GBPSave up to £6,406 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+
2.90ct Cushion
£1,459 GBP