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Cushion|Lab Grown|GIA

3.02ct E SI1 Cushion Lab Grown Diamond

E/SI1

Diamond specifications and retailer prices

From £2,947 GBP
As of November 5, 2026
Save £627 GBP (18%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £3,574 GBP at Washington Diamond · As of November 6, 2026
View at Washington Diamond

About this 3.02ct lab-grown cushion diamond

This 3.02ct lab-grown cushion sits in the three to five carat band, graded E colour (colourless) and SI1 clarity (slightly-included) and certified by GIA. Listed at 2 retailers as of November 5, 2026, with prices from £2,947 to £3,574, a £627 spread on the same certified stone. Washington Diamond lists it at £3,574. 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

3.02
Carat
E
Colour
SI1
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabGIA
Dimensions8.53 × 8.50 × 5.64 mm
L/W Ratio1.00
Top View
8.53 mm8.50 mm3.02 ctE / SI1
OriginLab Grown
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA
Side View
Table 59.0%CrownGirdle: STK-THKPavilionCuletDepth 66.3%

Caratlytics Score

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C
Average
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Price History

Last verified: Nov 5
Current: £2,947 GBP|Low: £2,612 GBP|High: £3,574 GBP|Avg: £2,805 GBP|+12.8%
Retailer 1
Washington Diamond
November 6, 2026
Retailer 1£2,947 GBP
Washington Diamond£3,574 GBP

15 data points across 2 retailers

2 retailers£2,947 GBP to £3,574 GBP

C
Cheapest Retailer
-
£2,947 GBP
Most Expensive
C
Washington Diamond
1897057727 · Nov 6
£3,574 GBP
$4,784 USD
View
1 more retailer has this diamond
Prices start from £2,947 GBPSave up to £627 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.

C
3.02ct Cushion
£2,947 GBP