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Cushion|Natural|GIA

1.50ct H SI1 Cushion Natural Diamond

EX • H/SI1 • GIA 2235860205

Certificate GIA 2235860205

Diamond specifications and retailer prices

From £2,388 GBP
HK$25,000 HKD
As of October 30, 2026
Save £2,887 GBP (55%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £5,276 GBP at MOH London · As of October 26, 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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2235860205. Listed at 10 retailers as of October 26, 2026, with prices from £2,388 to £5,276, a £2,887 spread on the same certified stone. MOH London lists it at £5,276. 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
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle36.13°
OriginNatural
Grading LabGIA
CertificateGIA 2235860205
Dimensions7.65 × 6.02 × 4.05 mm
L/W Ratio1.27
Key to symbols
Crystal, Cloud, Feather, Needle
Top View
7.65 mm6.02 mm1.50 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2235860205
Side View
Table 63.0%CrownGirdle: STK-VTKPavilion 36.13°Culet: NoneDepth 67.3%

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 30
Current: £5,276 GBP|Low: £2,388 GBP|High: £5,674 GBP|Avg: £3,485 GBP|-6.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 29, 2026
Retailer 5£2,388 GBP
Retailer 2£2,818 GBP
Retailer 8£2,986 GBP
Retailer 7£3,035 GBP
Retailer 3£3,085 GBP
Retailer 9£3,298 GBP
Retailer 6£3,472 GBP
Retailer 4£3,770 GBP
MOH London£5,276 GBP

34 data points across 9 retailers

10 retailers£2,388 GBP to £5,276 GBP

A
Cheapest Retailer
-
£2,388 GBP
HK$25,000 HKD
Retailer 2
-
£2,818 GBP
€3,596 EUR
View
Price last confirmed 3 days ago
A
Retailer 3
-
£2,986 GBP
$4,001 USD
View
A
Retailer 4
-
£3,035 GBP
SGD 5,495 SGD
View
A
Retailer 5
-
£3,085 GBP
View
A
Retailer 6
-
£3,298 GBP
$4,419 USD
View
Final sale: no returns
A
Retailer 7
-
£3,472 GBP
$4,652 USD
View
B+
Retailer 8
-
£3,487 GBP
A$7,188 AUD
View
B+
Retailer 9
-
£3,770 GBP
€4,811 EUR
View
Most Expensive
B
MOH London
EFAA5E52F · Oct 26
£5,276 GBP
View
9 more retailers have this diamond
Prices start from £2,388 GBPSave up to £2,887 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
£2,388 GBP