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Cushion|Natural|GIA

1.50ct M SI1 Cushion Natural Diamond

EX • M/SI1 • GIA 1539589012

Certificate GIA 1539589012

Diamond specifications and retailer prices

From £921 GBP
As of November 6, 2026
Save £965 GBP (51%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £1,887 GBP at Yorxs · As of November 6, 2026
View at Yorxs

About this 1.5ct natural cushion diamond

This 1.5ct natural cushion sits in the one-and-a-half to two carat band, graded M colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1539589012. Listed at 3 retailers as of November 6, 2026, with prices from £921 to £1,887, a £965 spread on the same certified stone. Yorxs lists it at £1,887. 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
M
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1539589012
Dimensions6.19 × 6.18 × 4.19 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
Clouds, pinpoints and surface graining are not shown.
Key to symbols
Crystal, Feather, Needle
Top View
6.19 mm6.18 mm1.50 ctM / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1539589012
Side View
Table 56.0%CrownGirdle: VTK-ETKPavilionCulet: NoneDepth 67.8%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £921 GBP|Low: £921 GBP|High: £1,897 GBP|Avg: £1,557 GBP|-47.9%
Retailer 1
Retailer 2
Yorxs
November 6, 2026
Retailer 1£921 GBP
Retailer 2£1,186 GBP
Yorxs£1,887 GBP

44 data points across 3 retailers

3 retailers£921 GBP to £1,887 GBP

A
Cheapest Retailer
-
£921 GBP
B+
Retailer 2
-
£1,186 GBP
View
Most Expensive
B+
Yorxs
5B4E7329C · Nov 6
£1,887 GBP
€2,405 EUR
View
2 more retailers have this diamond
Prices start from £921 GBPSave up to £965 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
£921 GBP