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Cushion|Natural|GIA

1.50ct K SI1 Cushion Natural Diamond

GD • K/SI1 • GIA 6552211001

Certificate GIA 6552211001

Diamond specifications and retailer prices

From £1,564 GBP
As of November 6, 2026
Save £2,061 GBP (57%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £3,625 GBP at MOH London · As of November 2, 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 SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6552211001. Listed at 14 retailers as of November 2, 2026, with prices from £1,564 to £3,625, a £2,061 spread on the same certified stone. MOH London lists it at £3,625. 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
K
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6552211001
Dimensions7.41 × 5.71 × 4.03 mm
L/W Ratio1.30
Top View
7.41 mm5.71 mm1.50 ctK / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6552211001
Side View
Table 66.0%CrownGirdle: VTK-ETKPavilionCulet: NoneDepth 70.6%

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: £3,625 GBP|Low: £1,564 GBP|High: £3,644 GBP|Avg: £2,298 GBP|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 3£1,564 GBP
Retailer 2£1,864 GBP
Retailer 4£2,007 GBP
Retailer 6£2,190 GBP
Retailer 5£2,408 GBP
Retailer 7£2,525 GBP
MOH London£3,625 GBP

27 data points across 7 retailers

14 retailers£1,564 GBP to £3,625 GBP

A
Cheapest Retailer
-
£1,564 GBP
B+
Retailer 2
-
£1,854 GBP
View
B+
Retailer 3
-
£1,864 GBP
View
B+
Retailer 4
-
£2,003 GBP
View
B+
Retailer 5
-
£2,007 GBP
View
B+
Retailer 6
-
£2,032 GBP
View
Retailer 7
-
£2,069 GBP
View
Price last confirmed 8 days ago
B+
Retailer 8
-
£2,175 GBP
View
B+
Retailer 9
-
£2,190 GBP
View
B+
Retailer 10
-
£2,232 GBP
View
Retailer 11
-
£2,391 GBP
View
Price last confirmed 38 days ago
B+
Retailer 12
-
£2,408 GBP
View
B+
Retailer 13
-
£2,525 GBP
View
Most Expensive
B
MOH London
B228918DD · Nov 2
£3,625 GBP
View
13 more retailers have this diamond
Prices start from £1,564 GBPSave up to £2,061 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
£1,564 GBP