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Cushion|Natural|GIA

1.51ct E SI1 Cushion Natural Diamond

VG • E/SI1 • GIA 5146246930

Certificate GIA 5146246930

Diamond specifications and retailer prices

From £4,490 GBP
As of November 6, 2026
Save £3,347 GBP (43%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £7,837 GBP at MOH London · As of November 4, 2026
View at MOH London

About this 1.51ct natural cushion diamond

This 1.51ct natural cushion sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 5146246930. Listed at 17 retailers as of November 4, 2026, with prices from £4,490 to £7,837, a £3,347 spread on the same certified stone. MOH London lists it at £7,837. 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
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5146246930
Dimensions6.53 × 6.18 × 4.32 mm
L/W Ratio1.06
Top View
6.53 mm6.18 mm1.51 ctE / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5146246930
Side View
Table 57.0%CrownGirdle: THN-VTKPavilionCulet: NoneDepth 69.9%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £7,837 GBP|Low: £4,053 GBP|High: £8,254 GBP|Avg: £5,768 GBP|-4.8%
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
Retailer 14
Retailer 15
Retailer 16
November 6, 2026
Retailer 16£4,053 GBP
Retailer 12£4,490 GBP
Retailer 7£4,539 GBP
Retailer 13£4,758 GBP
Retailer 14£4,832 GBP
Retailer 2£4,963 GBP
Retailer 10£5,065 GBP
Retailer 15£5,115 GBP
Retailer 3£5,372 GBP
Retailer 5£5,372 GBP
Retailer 4£5,551 GBP
Retailer 8£5,642 GBP
Retailer 9£5,796 GBP
Retailer 11£6,508 GBP
Retailer 6£7,733 GBP
MOH London£7,837 GBP

30 data points across 16 retailers

17 retailers£4,490 GBP to £7,837 GBP

Retailer 1
-
£4,053 GBP
Price last confirmed 9 days ago
B+
Retailer 2
-
£4,490 GBP
View
B+
Retailer 3
-
£4,539 GBP
View
B+
Retailer 4
-
£4,758 GBP
View
Retailer 5
-
£4,832 GBP
View
Price last confirmed 8 days ago
B+
Retailer 6
-
£4,963 GBP
View
B+
Retailer 7
-
£5,065 GBP
View
B+
Retailer 8
-
£5,115 GBP
View
B+
Retailer 9
-
£5,372 GBP
View
B+
Retailer 10
-
£5,372 GBP
View
B+
Retailer 11
-
£5,551 GBP
View
Retailer 12
-
£5,642 GBP
View
Price last confirmed 15 days ago
B+
Retailer 13
-
£5,796 GBP
View
Retailer 14
-
£6,448 GBP
View
Price last confirmed 14 days ago
B+
Retailer 15
-
£6,508 GBP
View
B
Retailer 16
-
£7,733 GBP
View
Most Expensive
B
MOH London
6CF334A13 · Nov 4
£7,837 GBP
View
16 more retailers have this diamond
Prices start from £4,490 GBPSave up to £3,347 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.

B+
1.51ct Cushion
£4,490 GBP