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Cushion|Natural|GIA

1.50ct K IF Cushion Natural Diamond

GD • K/IF • GIA 5546756780

Certificate GIA 5546756780

Diamond specifications and retailer prices

From £2,111 GBP
As of November 6, 2026
Save £596 GBP (22%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £2,708 GBP at Blue Nile · As of November 5, 2026
View at Blue Nile

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 IF clarity (flawless or internally-flawless), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 5546756780. Listed at 8 retailers as of November 5, 2026, with prices from £2,111 to £2,708, a £596 spread on the same certified stone. Blue Nile lists it at £2,708. 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
IF
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5546756780
Dimensions6.52 × 6.10 × 4.24 mm
L/W Ratio1.07
Top View
6.52 mm6.10 mm1.50 ctK / IF
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5546756780
Side View
Table 63.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 69.5%

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: £2,708 GBP|Low: £2,023 GBP|High: £2,961 GBP|Avg: £2,442 GBP|-8.6%
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 2£2,111 GBP
Retailer 4£2,273 GBP
Retailer 5£2,315 GBP
Retailer 7£2,351 GBP
Retailer 3£2,414 GBP
Retailer 6£2,662 GBP
Blue Nile£2,708 GBP

45 data points across 7 retailers

8 retailers£2,111 GBP to £2,708 GBP

A
Cheapest Retailer
-
£2,111 GBP
B+
Retailer 2
-
£2,273 GBP
View
A
Retailer 3
-
£2,315 GBP
View
Final sale: no returns
B+
Retailer 4
-
£2,351 GBP
View
A
Retailer 5
-
£2,414 GBP
View
B+
Retailer 6
-
£2,529 GBP
View
B+
Retailer 7
-
£2,662 GBP
View
Most Expensive
B+
Blue Nile
28445214 · Nov 5
£2,708 GBP
$3,624 USD
View
7 more retailers have this diamond
Prices start from £2,111 GBPSave up to £596 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
£2,111 GBP