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Cushion|Natural|GIA

1.50ct I SI1 Cushion Natural Diamond

GD • I/SI1 • GIA 1555054425

Certificate GIA 1555054425

Diamond specifications and retailer prices

From €2,992 EUR
As of November 6, 2026
Save €3,451 EUR (54%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: €6,443 EUR at MOH London · As of November 1, 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 1555054425. Listed at 21 retailers as of November 1, 2026, with prices from €2,992 to €6,443, a €3,451 spread on the same certified stone. MOH London lists it at €6,443. 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
I
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1555054425
Dimensions7.45 × 5.73 × 4.17 mm
L/W Ratio1.30
Girdle conditionFaceted
Top View
7.45 mm5.73 mm1.50 ctI / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1555054425
Side View
Table 68.0%CrownGirdle: STK-VTKPavilionCulet: NDepth 72.8%

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: €6,443 EUR|Low: €2,992 EUR|High: €6,616 EUR|Avg: €4,155 EUR|-2.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
November 7, 2026
Retailer 18€2,992 EUR
Retailer 8€3,453 EUR
Retailer 17€3,468 EUR
Retailer 9€3,541 EUR
Retailer 10€3,541 EUR
Retailer 3€3,650 EUR
Retailer 19€3,654 EUR
Retailer 7€3,732 EUR
Retailer 13€3,737 EUR
Retailer 12€3,753 EUR
Retailer 15€3,810 EUR
Retailer 11€3,833 EUR
Retailer 6€3,987 EUR
Retailer 2€4,022 EUR
Retailer 5€4,340 EUR
Retailer 14€4,456 EUR
Retailer 16€4,831 EUR
Retailer 4€6,331 EUR
MOH London€6,443 EUR

20 data points across 19 retailers

21 retailers€2,992 EUR to €6,443 EUR

A
Cheapest Retailer
-
€2,992 EUR
B+
Retailer 2
-
€3,453 EUR
View
B+
Retailer 3
-
€3,468 EUR
View
Price last confirmed 3 days ago
Retailer 4
-
€3,541 EUR
View
Price last confirmed 9 days ago
Retailer 5
-
€3,541 EUR
View
Price last confirmed 10 days ago
B+
Retailer 6
-
€3,650 EUR
View
B+
Retailer 7
-
€3,654 EUR
View
Final sale: no returns
B+
Retailer 8
-
€3,732 EUR
View
B+
Retailer 9
-
€3,737 EUR
View
B+
Retailer 10
-
€3,753 EUR
View
B+
Retailer 11
-
€3,810 EUR
View
Retailer 12
-
€3,833 EUR
View
Price last confirmed 8 days ago
B+
Retailer 13
-
€3,987 EUR
View
B+
Retailer 14
-
€4,022 EUR
View
Retailer 15
-
€4,223 EUR
View
Price last confirmed 29 days ago
B+
Retailer 16
-
€4,295 EUR
View
B+
Retailer 17
-
€4,340 EUR
View
B+
Retailer 18
-
€4,456 EUR
View
B
Retailer 19
-
€4,831 EUR
View
B
Retailer 20
-
€6,331 EUR
View
Most Expensive
B
MOH London
CE8DDD0F8 · Nov 1
€6,443 EUR
£5,664 GBP
View
20 more retailers have this diamond
Prices start from €2,992 EURSave up to €3,451 EUR

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
€2,992 EUR