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Cushion|Natural|GIA

1.50ct E SI1 Cushion Natural Diamond

EX • E/SI1 • GIA 1246005803

Certificate GIA 1246005803

Diamond specifications and retailer prices

From £2,595 GBP
HK$27,000 HKD
As of October 29, 2026
Save £3,246 GBP (56%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £5,841 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 1.5ct natural cushion diamond

This 1.5ct natural cushion sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1246005803. Listed at 19 retailers as of October 29, 2026, with prices from £2,595 to £5,841, a £3,246 spread on the same certified stone. MOH London lists it at £5,841. 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

1.50
Carat
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1246005803
Dimensions6.86 × 6.28 × 4.32 mm
L/W Ratio1.09
Girdle conditionFaceted
Top View
6.86 mm6.28 mm1.50 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1246005803
Side View
Table 61.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 68.8%

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: Oct 29
Current: £5,841 GBP|Low: £2,595 GBP|High: £6,039 GBP|Avg: £3,535 GBP|-3.3%
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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
October 29, 2026
Retailer 18£2,595 GBP
Retailer 9£2,677 GBP
Retailer 16£2,822 GBP
Retailer 17£2,990 GBP
Retailer 5£3,013 GBP
Retailer 3£3,050 GBP
Retailer 11£3,077 GBP
Retailer 6£3,131 GBP
Retailer 8£3,145 GBP
Retailer 7£3,184 GBP
Retailer 15£3,184 GBP
Retailer 2£3,291 GBP
Retailer 12£3,498 GBP
Retailer 10£3,777 GBP
Retailer 13£4,122 GBP
Retailer 14£4,403 GBP
Retailer 4£5,603 GBP
MOH London£5,841 GBP

24 data points across 18 retailers

19 retailers£2,595 GBP to £5,841 GBP

A
Cheapest Retailer
-
£2,595 GBP
HK$27,000 HKD
A
Retailer 2
-
£2,677 GBP
$3,565 USD
View
A
Retailer 3
-
£2,822 GBP
$3,758 USD
View
A
Retailer 4
-
£2,990 GBP
$3,982 USD
View
A
Retailer 5
-
£3,013 GBP
$4,012 USD
View
A
Retailer 6
-
£3,050 GBP
$4,062 USD
View
Final sale: no returns
A
Retailer 7
-
£3,077 GBP
€3,902 EUR
View
A
Retailer 8
-
£3,131 GBP
$4,170 USD
View
A
Retailer 9
-
£3,145 GBP
$4,188 USD
View
A
Retailer 10
-
£3,184 GBP
$4,240 USD
View
A
Retailer 11
-
£3,184 GBP
$4,240 USD
View
A
Retailer 12
-
£3,291 GBP
View
A
Retailer 13
-
£3,498 GBP
$4,658 USD
View
A
Retailer 14
-
£3,777 GBP
A$7,738 AUD
View
Price last confirmed 19 days ago
A
Retailer 15
-
£3,953 GBP
A$8,098 AUD
View
A
Retailer 16
-
£4,122 GBP
€5,228 EUR
View
A
Retailer 17
-
£4,403 GBP
ZAR 94,721 ZAR
View
Price last confirmed 7 days ago
B+
Retailer 18
-
£5,603 GBP
$7,461 USD
View
Most Expensive
B+
MOH London
1FAD8C3DB · Oct 29
£5,841 GBP
View
18 more retailers have this diamond
Prices start from £2,595 GBPSave up to £3,246 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
1.50ct Cushion
£2,595 GBP