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Cushion|Natural|GIA

1.50ct M SI1 Cushion Natural Diamond

GD • M/SI1 • GIA 1545402234

Shape and cutting style on the report: Old mine brilliant

Certificate GIA 1545402234

Diamond specifications and retailer prices

From £2,127 GBP
As of November 4, 2026
Save £505 GBP (19%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £2,632 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 standard cut grade stated by the retailer rather than the lab and certified by GIA 1545402234. Listed at 3 retailers as of November 4, 2026, with prices from £2,127 to £2,632, a £505 spread on the same certified stone. Yorxs lists it at £2,632. 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
M
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 1545402234
Dimensions7.90 × 5.73 × 3.91 mm
L/W Ratio1.38
Culet sizeSlightly Large
Key to symbols
Cloud, Crystal, Feather, Indented Natural, Natural, Extra Facet
Top View
7.90 mm5.73 mm1.50 ctM / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceMedium
CertificateGIA 1545402234
Side View
Table 59.0%CrownGirdle: THN-VTKPavilionCulet: SLGDepth 68.2%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: £2,048 GBP|Low: £2,048 GBP|High: £2,979 GBP|Avg: £2,435 GBP|-12.0%
Retailer 1
Retailer 2
Retailer 3
Yorxs
November 6, 2026
Retailer 1£2,048 GBP
Retailer 2£2,127 GBP
Retailer 3£2,152 GBP
Yorxs£2,632 GBP

24 data points across 4 retailers

3 retailers£2,127 GBP to £2,632 GBP

B
Cheapest Retailer
-
£2,127 GBP
B
Retailer 2
-
£2,152 GBP
View
Most Expensive
C
Yorxs
6D3847FF4 · Nov 6
£2,632 GBP
€3,355 EUR
View
2 more retailers have this diamond
Prices start from £2,127 GBPSave up to £505 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.

B
1.50ct Cushion
£2,127 GBP