Cushion|Natural|GIA

1.50ct G SI1 Cushion Natural Diamond

EX • G/SI1 • GIA 2354860997

Certificate GIA 2354860997

Diamond specifications and retailer prices

From £5,612 GBP
$7,519 USD
As of October 31, 2026
Save £4,281 GBP (43%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £9,893 GBP at MOH London · As of November 1, 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 G 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 2354860997. Listed at 20 retailers as of October 31, 2026, with prices from £5,612 to £9,893, a £4,281 spread on the same certified stone. MOH London lists it at £9,893. 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
G
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2354860997
Dimensions6.89 × 6.57 × 4.47 mm
L/W Ratio1.05
Top View
6.89 mm6.57 mm1.50 ctG / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 2354860997
Side View
Table 75.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 68.0%

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: Oct 31
Current: £9,893 GBP|Low: £5,278 GBP|High: £10,012 GBP|Avg: £7,269 GBP|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 9£5,612 GBP
Retailer 6£5,646 GBP
Retailer 7£6,334 GBP
Retailer 3£6,923 GBP
Retailer 5£6,954 GBP
Retailer 8£7,062 GBP
Retailer 2£7,869 GBP
Retailer 4£9,305 GBP
MOH London£9,893 GBP

45 data points across 9 retailers

20 retailers£5,612 GBP to £9,893 GBP

B+
Cheapest Retailer
-
£5,612 GBP
$7,519 USD
B+
Retailer 2
-
£5,646 GBP
$7,565 USD
View
B+
Retailer 3
-
£5,898 GBP
$7,903 USD
View
B
Retailer 4
-
£5,930 GBP
$7,946 USD
View
B
Retailer 5
-
£6,106 GBP
$8,181 USD
View
B
Retailer 6
-
£6,180 GBP
CA$11,501 CAD
View
B
Retailer 7
-
£6,295 GBP
$8,435 USD
View
B
Retailer 8
-
£6,334 GBP
$8,487 USD
View
Final sale: no returns
B
Retailer 9
-
£6,445 GBP
$8,635 USD
View
B
Retailer 10
-
£6,923 GBP
View
Retailer 11
-
£6,954 GBP
A$14,335 AUD
View
Price last confirmed 9 days ago
B
Retailer 12
-
£7,062 GBP
$9,462 USD
View
B
Retailer 13
-
£7,287 GBP
$9,764 USD
View
B
Retailer 14
-
£7,493 GBP
$10,040 USD
View
B
Retailer 15
-
£7,493 GBP
$10,040 USD
View
B
Retailer 16
-
£7,739 GBP
$10,370 USD
View
B
Retailer 17
-
£7,869 GBP
€10,042 EUR
View
Retailer 18
-
£8,337 GBP
$11,171 USD
View
Price last confirmed 10 days ago
B
Retailer 19
-
£9,305 GBP
ZAR 201,423 ZAR
View
Most Expensive
B
MOH London
EC7D83A1C · Nov 1
£9,893 GBP
View
19 more retailers have this diamond
Prices start from £5,612 GBPSave up to £4,281 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+
1.50ct Cushion
£5,612 GBP