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Cushion|Natural|GIA

1.51ct H SI1 Cushion Natural Diamond

EX • H/SI1 • GIA 2235954416

Certificate GIA 2235954416

Diamond specifications and retailer prices

From £2,524 GBP
As of November 5, 2026
Save £2,940 GBP (54%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £5,464 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2235954416. Listed at 10 retailers as of November 4, 2026, with prices from £2,524 to £5,464, a £2,940 spread on the same certified stone. MOH London lists it at £5,464. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.51
Carat
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle35.88°
OriginNatural
Grading LabGIA
CertificateGIA 2235954416
Dimensions7.56 × 5.91 × 4.06 mm
L/W Ratio1.28
Key to symbols
Cloud, Needle
Top View
7.56 mm5.91 mm1.51 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2235954416
Side View
Table 65.0%CrownGirdle: STK-VTKPavilion 35.88°Culet: NoneDepth 68.7%

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 5
Current: £5,464 GBP|Low: £2,524 GBP|High: £5,975 GBP|Avg: £3,702 GBP|-8.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 5£2,524 GBP
Retailer 7£2,948 GBP
Retailer 8£3,080 GBP
Retailer 4£3,208 GBP
Retailer 2£3,223 GBP
Retailer 6£3,661 GBP
Retailer 9£3,767 GBP
Retailer 3£3,960 GBP
MOH London£5,464 GBP

34 data points across 9 retailers

10 retailers£2,524 GBP to £5,464 GBP

A
Cheapest Retailer
-
£2,524 GBP
A
Retailer 2
-
£2,948 GBP
View
A
Retailer 3
-
£3,080 GBP
View
A
Retailer 4
-
£3,208 GBP
View
A
Retailer 5
-
£3,223 GBP
View
B+
Retailer 6
-
£3,661 GBP
View
B+
Retailer 7
-
£3,767 GBP
View
Final sale: no returns
B+
Retailer 8
-
£3,806 GBP
View
B+
Retailer 9
-
£3,960 GBP
View
Most Expensive
B
MOH London
0C16BD85B · Nov 4
£5,464 GBP
View
9 more retailers have this diamond
Prices start from £2,524 GBPSave up to £2,940 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
£2,524 GBP