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Cushion|Natural|GIA

1.50ct H SI1 Cushion Natural Diamond

VG • H/SI1 • GIA 2377518025

Certificate GIA 2377518025

Diamond specifications and retailer prices

From £5,582 GBP
$7,479 USD
As of October 31, 2026
Save £4,257 GBP (43%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £9,839 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 2377518025. Listed at 22 retailers as of October 31, 2026, with prices from £5,582 to £9,839, a £4,257 spread on the same certified stone. MOH London lists it at £9,839. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.50
Carat
H
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2377518025
Dimensions6.80 × 6.27 × 4.35 mm
L/W Ratio1.08
Top View
6.80 mm6.27 mm1.50 ctH / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2377518025
Side View
Table 62.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 69.4%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: £9,839 GBP|Low: £5,250 GBP|High: £9,957 GBP|Avg: £7,194 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£5,582 GBP
Retailer 6£5,616 GBP
Retailer 7£6,300 GBP
Retailer 8£6,300 GBP
Retailer 3£6,870 GBP
Retailer 5£6,916 GBP
Retailer 2£7,825 GBP
Retailer 4£9,255 GBP
MOH London£9,839 GBP

44 data points across 9 retailers

22 retailers£5,582 GBP to £9,839 GBP

B
Cheapest Retailer
-
£5,582 GBP
$7,479 USD
B
Retailer 2
-
£5,616 GBP
$7,525 USD
View
B
Retailer 3
-
£5,865 GBP
$7,859 USD
View
B
Retailer 4
-
£5,889 GBP
A$12,140 AUD
View
B
Retailer 5
-
£5,898 GBP
$7,903 USD
View
B
Retailer 6
-
£6,072 GBP
$8,136 USD
View
B
Retailer 7
-
£6,146 GBP
CA$11,437 CAD
View
B
Retailer 8
-
£6,262 GBP
$8,390 USD
View
B
Retailer 9
-
£6,300 GBP
$8,441 USD
View
B
Retailer 10
-
£6,300 GBP
$8,441 USD
View
Final sale: no returns
B
Retailer 11
-
£6,409 GBP
$8,588 USD
View
B
Retailer 12
-
£6,870 GBP
View
Retailer 13
-
£6,916 GBP
A$14,256 AUD
View
Price last confirmed 9 days ago
B
Retailer 14
-
£7,024 GBP
$9,412 USD
View
B
Retailer 15
-
£7,246 GBP
$9,709 USD
View
B
Retailer 16
-
£7,448 GBP
$9,980 USD
View
B
Retailer 17
-
£7,448 GBP
$9,980 USD
View
B
Retailer 18
-
£7,702 GBP
$10,320 USD
View
B
Retailer 19
-
£7,825 GBP
€9,985 EUR
View
Retailer 20
-
£8,292 GBP
$11,111 USD
View
Price last confirmed 10 days ago
B
Retailer 21
-
£9,255 GBP
ZAR 200,325 ZAR
View
Most Expensive
B
MOH London
54379CA5C · Nov 1
£9,839 GBP
View
21 more retailers have this diamond
Prices start from £5,582 GBPSave up to £4,257 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
£5,582 GBP