CaratHunter
Plans
Cushion|Lab Grown|GIA

1.51ct E SI1 Cushion Lab Grown Diamond

GD • E/SI1 • GIA 2497331214

Certificate GIA 2497331214

Diamond specifications and retailer prices

From £309 GBP
As of November 6, 2026
Save £1,024 GBP (77%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £1,332 GBP at MOH London · As of November 7, 2026
View at MOH London

About this 1.51ct lab-grown cushion diamond

This 1.51ct lab-grown cushion sits in the one-and-a-half to two 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 2497331214. Listed at 16 retailers as of November 6, 2026, with prices from £309 to £1,332, a £1,024 spread on the same certified stone. MOH London lists it at £1,332. 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

1.51
Carat
E
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginLab Grown
Grading LabGIA
CertificateGIA 2497331214
Dimensions7.49 × 6.18 × 4.16 mm
L/W Ratio1.21
Top View
7.49 mm6.18 mm1.51 ctE / SI1
OriginLab Grown
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 2497331214
Side View
Table 60.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 67.3%

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: Nov 6
Current: £1,332 GBP|Low: £309 GBP|High: £1,355 GBP|Avg: £637 GBP|-1.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 7, 2026
Retailer 13£309 GBP
Retailer 4£343 GBP
Retailer 3£383 GBP
Retailer 6£439 GBP
Retailer 8£456 GBP
Retailer 10£484 GBP
Retailer 9£526 GBP
Retailer 5£532 GBP
Retailer 7£556 GBP
Retailer 12£706 GBP
Retailer 2£1,167 GBP
Retailer 11£1,300 GBP
MOH London£1,332 GBP

43 data points across 13 retailers

16 retailers£309 GBP to £1,332 GBP

A
Cheapest Retailer
-
£309 GBP
Final sale: no returns
B+
Retailer 2
-
£343 GBP
View
B+
Retailer 3
-
£383 GBP
View
B+
Retailer 4
-
£439 GBP
View
B+
Retailer 5
-
£439 GBP
View
B+
Retailer 6
-
£456 GBP
View
B+
Retailer 7
-
£484 GBP
View
B+
Retailer 8
-
£526 GBP
View
B
Retailer 9
-
£532 GBP
View
B+
Retailer 10
-
£556 GBP
View
Retailer 11
-
£706 GBP
View
Price last confirmed 17 days ago
C
Retailer 12
-
£1,131 GBP
View
C
Retailer 13
-
£1,146 GBP
View
C
Retailer 14
-
£1,167 GBP
View
Retailer 15
-
£1,300 GBP
View
Price last confirmed 16 days ago
Most Expensive
B
MOH London
2497331214 · Nov 7
£1,332 GBP
View
15 more retailers have this diamond
Prices start from £309 GBPSave up to £1,024 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
1.51ct Cushion
£309 GBP