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Cushion|Natural|GIA

1.50ct K SI2 Cushion Natural Diamond

EX • K/SI2 • GIA 5546944374

Certificate GIA 5546944374

Diamond specifications and retailer prices

From £1,237 GBP
As of November 5, 2026
Save £379 GBP (23%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £1,616 GBP at GemTrove · As of November 6, 2026
View at GemTrove

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 5546944374. Listed at 6 retailers as of November 6, 2026, with prices from £1,237 to £1,616, a £379 spread on the same certified stone. GemTrove lists it at £1,616. 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
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 5546944374
Dimensions6.36 × 6.08 × 4.31 mm
L/W Ratio1.05
Top View
6.36 mm6.08 mm1.50 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 5546944374
Side View
Table 60.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 70.9%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 5
Current: £1,616 GBP|Low: £1,102 GBP|High: £1,616 GBP|Avg: £1,371 GBP
GemTrove
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 3£1,237 GBP
Retailer 4£1,237 GBP
Retailer 6£1,247 GBP
Retailer 2£1,354 GBP
Retailer 5£1,431 GBP
GemTrove£1,616 GBP

41 data points across 6 retailers

6 retailers£1,237 GBP to £1,616 GBP

A
Cheapest Retailer
-
£1,237 GBP
A
Retailer 2
-
£1,237 GBP
View
Final sale: no returns
A
Retailer 3
-
£1,247 GBP
View
A
Retailer 4
-
£1,354 GBP
View
A
Retailer 5
-
£1,431 GBP
View
Most Expensive
B+
GemTrove
GT-N-00963678-98 · Nov 6
£1,616 GBP
A$3,328 AUD
View
5 more retailers have this diamond
Prices start from £1,237 GBPSave up to £379 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
£1,237 GBP