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Cushion|Natural|GIA

1.50ct H SI2 Cushion Natural Diamond

EX • H/SI2 • GIA 6402489726

Certificate GIA 6402489726

Diamond specifications and retailer prices

From £4,779 GBP
As of November 6, 2026
Save £4,168 GBP (47%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £8,947 GBP at MOH London · As of November 4, 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 H 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 6402489726. Listed at 18 retailers as of November 4, 2026, with prices from £4,779 to £8,947, a £4,168 spread on the same certified stone. MOH London lists it at £8,947. 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
H
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6402489726
Dimensions7.33 × 6.15 × 4.27 mm
L/W Ratio1.19
Top View
7.33 mm6.15 mm1.50 ctH / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 6402489726
Side View
Table 75.0%CrownGirdle: STK-ETKPavilionCulet: NoneDepth 69.4%

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: Nov 6
Current: £8,947 GBP|Low: £4,779 GBP|High: £9,079 GBP|Avg: £6,068 GBP|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 9£4,779 GBP
Retailer 6£4,800 GBP
Retailer 3£5,041 GBP
Retailer 7£5,383 GBP
Retailer 10£5,477 GBP
Retailer 2£5,530 GBP
Retailer 5£5,938 GBP
Retailer 8£6,022 GBP
Retailer 4£6,646 GBP
MOH London£8,947 GBP

43 data points across 10 retailers

18 retailers£4,779 GBP to £8,947 GBP

B+
Cheapest Retailer
-
£4,779 GBP
B+
Retailer 2
-
£4,800 GBP
View
B
Retailer 3
-
£4,996 GBP
View
B
Retailer 4
-
£5,041 GBP
View
B
Retailer 5
-
£5,169 GBP
View
B
Retailer 6
-
£5,317 GBP
View
Retailer 7
-
£5,383 GBP
View
Price last confirmed 9 days ago
B
Retailer 8
-
£5,477 GBP
View
B
Retailer 9
-
£5,530 GBP
View
B
Retailer 10
-
£5,938 GBP
View
B
Retailer 11
-
£6,022 GBP
View
B
Retailer 12
-
£6,168 GBP
View
B
Retailer 13
-
£6,425 GBP
View
B
Retailer 14
-
£6,425 GBP
View
B
Retailer 15
-
£6,634 GBP
View
B
Retailer 16
-
£6,646 GBP
View
Retailer 17
-
£7,089 GBP
View
Price last confirmed 15 days ago
Most Expensive
B
MOH London
D1DD819D8 · Nov 4
£8,947 GBP
View
17 more retailers have this diamond
Prices start from £4,779 GBPSave up to £4,168 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
£4,779 GBP