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Cushion|Lab Grown|GIA

2.51ct E SI1 Cushion Lab Grown Diamond

GD • E/SI1 • GIA 2486286724

Certificate GIA 2486286724

Diamond specifications and retailer prices

From £549 GBP
$736 USD
As of October 30, 2026
Save £1,853 GBP (77%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £2,402 GBP at MOH London · As of October 25, 2026
View at MOH London

About this 2.51ct lab-grown cushion diamond

This 2.51ct lab-grown cushion sits in the two to three carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2486286724. Listed at 14 retailers as of October 25, 2026, with prices from £549 to £2,402, a £1,853 spread on the same certified stone. MOH London lists it at £2,402. 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

2.51
Carat
E
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabGIA
CertificateGIA 2486286724
Dimensions7.88 × 7.87 × 5.42 mm
L/W Ratio1.00
Top View
7.88 mm7.87 mm2.51 ctE / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2486286724
Side View
Table 62.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 68.8%

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: £2,402 GBP|Low: £392 GBP|High: £2,428 GBP|Avg: £1,125 GBP|-0.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 30, 2026
Retailer 11£549 GBP
Retailer 9£569 GBP
Retailer 7£702 GBP
Retailer 12£780 GBP
Retailer 10£781 GBP
Retailer 8£855 GBP
Retailer 2£865 GBP
Retailer 5£965 GBP
Retailer 6£1,325 GBP
Retailer 3£1,751 GBP
Retailer 4£1,965 GBP
MOH London£2,402 GBP

40 data points across 12 retailers

14 retailers£549 GBP to £2,402 GBP

A
Cheapest Retailer
-
£549 GBP
$736 USD
Final sale: no returns
Retailer 2
-
£569 GBP
$763 USD
View
Price last confirmed 14 days ago
B+
Retailer 3
-
£697 GBP
HK$7,300 HKD
View
B+
Retailer 4
-
£702 GBP
$940 USD
View
B+
Retailer 5
-
£780 GBP
$1,045 USD
View
B+
Retailer 6
-
£781 GBP
$1,046 USD
View
B+
Retailer 7
-
£855 GBP
$1,145 USD
View
B+
Retailer 8
-
£865 GBP
View
B
Retailer 9
-
£965 GBP
€1,232 EUR
View
B
Retailer 10
-
£1,325 GBP
$1,776 USD
View
Retailer 11
-
£1,420 GBP
$1,903 USD
View
Price last confirmed 82 days ago
B
Retailer 12
-
£1,751 GBP
$2,346 USD
View
B
Retailer 13
-
£1,965 GBP
$2,633 USD
View
Most Expensive
B
MOH London
2486286724 · Oct 25
£2,402 GBP
View
13 more retailers have this diamond
Prices start from £549 GBPSave up to £1,853 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
2.51ct Cushion
£549 GBP