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Cushion|Natural|GIA

1.51ct I SI2 Cushion Natural Diamond

EX • I/SI2 • GIA 7542375535

Certificate GIA 7542375535

Diamond specifications and retailer prices

From £2,103 GBP
$2,818 USD
As of October 26, 2026
Save £1,083 GBP (34%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £4,583 GBP at MOH London · As of October 21, 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 7542375535. Listed at 16 retailers as of October 26, 2026, with a 52% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 7542375535
Dimensions6.87 × 6.62 × 4.36 mm
L/W Ratio1.04
Girdle conditionFaceted
Top View
6.87 mm6.62 mm1.51 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7542375535
Side View
Table 65.0%CrownGirdle: STK-VTKPavilion 41.4°Culet: NoneDepth 65.9%

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 26
Current: £4,583 GBP|Low: £1,972 GBP|High: £4,842 GBP|Avg: £2,898 GBP|-5.3%
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
October 29, 2026
Retailer 10£2,092 GBP
Retailer 3£2,103 GBP
Retailer 8£2,255 GBP
Retailer 9£2,263 GBP
Retailer 11£2,279 GBP
Retailer 13£2,412 GBP
Retailer 5£2,552 GBP
Retailer 14£2,664 GBP
Retailer 6£2,692 GBP
Retailer 7£2,790 GBP
Retailer 2£3,186 GBP
Retailer 4£3,762 GBP
Retailer 12£4,374 GBP
MOH London£4,583 GBP

33 data points across 14 retailers

16 retailers£2,103 GBP to £3,186 GBP

Retailer 1
-
£2,092 GBP
HK$21,900 HKD
Price last confirmed 9 days ago
A
Retailer 2
-
£2,103 GBP
$2,818 USD
View
Retailer 3
-
£2,255 GBP
$3,022 USD
View
Price last confirmed 7 days ago
A
Retailer 4
-
£2,263 GBP
$3,032 USD
View
A
Retailer 5
-
£2,279 GBP
$3,054 USD
View
Final sale: no returns
A
Retailer 6
-
£2,412 GBP
$3,232 USD
View
A
Retailer 7
-
£2,515 GBP
A$5,185 AUD
View
A
Retailer 8
-
£2,552 GBP
$3,419 USD
View
A
Retailer 9
-
£2,664 GBP
$3,570 USD
View
A
Retailer 10
-
£2,692 GBP
SGD 4,875 SGD
View
Retailer 11
-
£2,790 GBP
View
Price last confirmed 9 days ago
A
Retailer 12
-
£2,968 GBP
A$6,118 AUD
View
A
Retailer 13
-
£3,186 GBP
€4,066 EUR
View
B+
Retailer 14
-
£3,762 GBP
$5,040 USD
View
Price last confirmed 7 days ago
Retailer 15
-
£4,374 GBP
$5,860 USD
View
Price last confirmed 9 days ago
Most Expensive
MOH London
BF6973D52 · Oct 21
£4,583 GBP
View
Price last confirmed 12 days ago
15 more retailers have this diamond
Prices start from £2,103 GBPSave up to £1,083 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
£2,103 GBP