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Cushion|Natural|GIA

1.50ct I SI1 Cushion Natural Diamond

EX • I/SI1 • GIA 2241066059

Certificate GIA 2241066059

Diamond specifications and retailer prices

From £1,501 GBP
As of November 6, 2026
Save £2,053 GBP (58%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £3,554 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 I 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 2241066059. Listed at 8 retailers as of November 4, 2026, with prices from £1,501 to £3,554, a £2,053 spread on the same certified stone. MOH London lists it at £3,554. 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
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Pavilion angle36.03°
OriginNatural
Grading LabGIA
CertificateGIA 2241066059
Dimensions7.55 × 5.90 × 4.11 mm
L/W Ratio1.28
Key to symbols
Crystal, Feather
Top View
7.55 mm5.90 mm1.50 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 2241066059
Side View
Table 62.0%CrownGirdle: STK-VTKPavilion 36.03°Culet: NoneDepth 69.8%

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: Nov 6
Current: £3,554 GBP|Low: £1,501 GBP|High: £3,930 GBP|Avg: £2,479 GBP|-9.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 6£1,501 GBP
Retailer 3£1,852 GBP
Retailer 5£1,854 GBP
Retailer 4£2,010 GBP
Retailer 7£2,217 GBP
Retailer 2£2,752 GBP
Retailer 9£2,835 GBP
Retailer 8£3,192 GBP
MOH London£3,554 GBP

29 data points across 9 retailers

8 retailers£1,501 GBP to £3,554 GBP

A
Cheapest Retailer
-
£1,501 GBP
A
Retailer 2
-
£1,852 GBP
View
A
Retailer 3
-
£1,854 GBP
View
A
Retailer 4
-
£2,010 GBP
View
A
Retailer 5
-
£2,217 GBP
View
A
Retailer 6
-
£2,752 GBP
View
Retailer 7
-
£3,192 GBP
View
Price last confirmed 10 days ago
Most Expensive
B+
MOH London
408F274C1 · Nov 4
£3,554 GBP
View
7 more retailers have this diamond
Prices start from £1,501 GBPSave up to £2,053 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
£1,501 GBP