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Cushion|Natural|GIA

1.51ct I SI2 Cushion Natural Diamond

EX • I/SI2 • GIA 1553333834

Certificate GIA 1553333834

Diamond specifications and retailer prices

From £2,302 GBP
HK$24,100 HKD
As of November 1, 2026
Save £2,792 GBP (55%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £5,095 GBP at MOH London · As of November 1, 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1553333834. Listed at 16 retailers as of November 1, 2026, with prices from £2,302 to £5,095, a £2,792 spread on the same certified stone. MOH London lists it at £5,095. 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
I
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1553333834
Dimensions7.30 × 5.70 × 3.98 mm
L/W Ratio1.28
Girdle conditionVery Thick to Extremely Thick
Top View
7.30 mm5.70 mm1.51 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1553333834
Side View
Table 67.0%CrownGirdle: VTK-XTKPavilionCulet: NoneDepth 69.8%

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: Nov 1
Current: £5,095 GBP|Low: £2,283 GBP|High: £5,243 GBP|Avg: £3,087 GBP|-2.8%
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
November 2, 2026
Retailer 9£2,302 GBP
Retailer 4£2,388 GBP
Retailer 5£2,450 GBP
Retailer 13£2,505 GBP
Retailer 3£2,547 GBP
Retailer 14£2,615 GBP
Retailer 12£2,760 GBP
Retailer 6£2,919 GBP
Retailer 2£2,971 GBP
Retailer 8£3,116 GBP
Retailer 7£3,446 GBP
Retailer 11£3,447 GBP
Retailer 10£3,821 GBP
MOH London£5,095 GBP

34 data points across 14 retailers

16 retailers£2,302 GBP to £5,095 GBP

A
Cheapest Retailer
-
£2,302 GBP
HK$24,100 HKD
A
Retailer 2
-
£2,388 GBP
$3,200 USD
View
A
Retailer 3
-
£2,450 GBP
$3,283 USD
View
A
Retailer 4
-
£2,505 GBP
$3,356 USD
View
A
Retailer 5
-
£2,547 GBP
$3,413 USD
View
Final sale: no returns
A
Retailer 6
-
£2,615 GBP
$3,504 USD
View
A
Retailer 7
-
£2,760 GBP
$3,698 USD
View
A
Retailer 8
-
£2,919 GBP
$3,912 USD
View
A
Retailer 9
-
£2,971 GBP
View
A
Retailer 10
-
£3,102 GBP
$4,157 USD
View
A
Retailer 11
-
£3,116 GBP
View
B+
Retailer 12
-
£3,446 GBP
€4,398 EUR
View
B+
Retailer 13
-
£3,821 GBP
$5,120 USD
View
B+
Retailer 14
-
£3,821 GBP
$5,120 USD
View
B+
Retailer 15
-
£3,948 GBP
$5,290 USD
View
Most Expensive
B
MOH London
711C6122D · Nov 1
£5,095 GBP
View
15 more retailers have this diamond
Prices start from £2,302 GBPSave up to £2,792 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
£2,302 GBP