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Cushion|Natural|GIA

1.50ct K SI2 Cushion Natural Diamond

EX • K/SI2 • GIA 2556699041

Certificate GIA 2556699041

Diamond specifications and retailer prices

From £1,826 GBP
As of November 6, 2026
Save £2,214 GBP (55%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £4,040 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 K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2556699041. Listed at 14 retailers as of November 4, 2026, with prices from £1,826 to £4,040, a £2,214 spread on the same certified stone. MOH London lists it at £4,040. 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
K
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2556699041
Dimensions7.68 × 5.92 × 4.13 mm
L/W Ratio1.30
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Cloud, Indented Natural, Natural
Top View
7.68 mm5.92 mm1.50 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2556699041
Side View
Table 63.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 69.7%

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: £4,040 GBP|Low: £1,807 GBP|High: £4,121 GBP|Avg: £2,546 GBP|-1.8%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 9£1,826 GBP
Retailer 2£1,931 GBP
Retailer 8£2,142 GBP
Retailer 11£2,222 GBP
Retailer 4£2,414 GBP
Retailer 7£2,492 GBP
Retailer 3£2,529 GBP
Retailer 6£2,539 GBP
Retailer 10£2,608 GBP
Retailer 5£2,820 GBP
MOH London£4,040 GBP

28 data points across 11 retailers

14 retailers£1,826 GBP to £4,040 GBP

A
Cheapest Retailer
-
£1,826 GBP
A
Retailer 2
-
£1,931 GBP
View
A
Retailer 3
-
£2,142 GBP
View
A
Retailer 4
-
£2,222 GBP
View
B+
Retailer 5
-
£2,255 GBP
View
B+
Retailer 6
-
£2,412 GBP
View
A
Retailer 7
-
£2,414 GBP
View
Retailer 8
-
£2,438 GBP
View
Price last confirmed 29 days ago
B+
Retailer 9
-
£2,492 GBP
View
B+
Retailer 10
-
£2,529 GBP
View
B+
Retailer 11
-
£2,539 GBP
View
B+
Retailer 12
-
£2,608 GBP
View
B+
Retailer 13
-
£2,820 GBP
View
Most Expensive
B
MOH London
33BB0FB4E · Nov 4
£4,040 GBP
View
13 more retailers have this diamond
Prices start from £1,826 GBPSave up to £2,214 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
£1,826 GBP