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Cushion|Natural|GIA

1.50ct K SI1 Cushion Natural Diamond

GD • K/SI1 • GIA 5231995738

Certificate GIA 5231995738

Diamond specifications and retailer prices

From €1,926 EUR
As of November 6, 2026
Save €2,499 EUR (56%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: €4,425 EUR at MOH London · As of November 2, 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 K 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 5231995738. Listed at 16 retailers as of November 2, 2026, with prices from €1,926 to €4,425, a €2,499 spread on the same certified stone. MOH London lists it at €4,425. 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
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5231995738
Dimensions7.46 × 5.72 × 4.15 mm
L/W Ratio1.30
Girdle conditionFaceted
Top View
7.46 mm5.72 mm1.50 ctK / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5231995738
Side View
Table 67.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 72.5%

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: €4,425 EUR|Low: €1,892 EUR|High: €4,647 EUR|Avg: €2,878 EUR|-4.8%
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
November 6, 2026
Retailer 4€1,926 EUR
Retailer 12€2,210 EUR
Retailer 11€2,313 EUR
Retailer 14€2,427 EUR
Retailer 2€2,430 EUR
Retailer 6€2,445 EUR
Retailer 10€2,636 EUR
Retailer 5€2,639 EUR
Retailer 7€2,659 EUR
Retailer 9€2,679 EUR
Retailer 3€2,832 EUR
Retailer 8€2,916 EUR
Retailer 13€3,058 EUR
Retailer 15€4,063 EUR
MOH London€4,425 EUR

24 data points across 15 retailers

16 retailers€1,926 EUR to €4,425 EUR

A
Cheapest Retailer
-
€1,926 EUR
B+
Retailer 2
-
€2,210 EUR
View
B+
Retailer 3
-
€2,313 EUR
View
Final sale: no returns
B+
Retailer 4
-
€2,427 EUR
View
B+
Retailer 5
-
€2,430 EUR
View
B+
Retailer 6
-
€2,445 EUR
View
B+
Retailer 7
-
€2,636 EUR
View
B+
Retailer 8
-
€2,639 EUR
View
B+
Retailer 9
-
€2,659 EUR
View
B+
Retailer 10
-
€2,679 EUR
View
B+
Retailer 11
-
€2,793 EUR
View
B+
Retailer 12
-
€2,832 EUR
View
B+
Retailer 13
-
€2,916 EUR
View
B+
Retailer 14
-
€3,058 EUR
View
B
Retailer 15
-
€4,063 EUR
View
Most Expensive
B
MOH London
0D01DAB4C · Nov 2
€4,425 EUR
£3,890 GBP
View
15 more retailers have this diamond
Prices start from €1,926 EURSave up to €2,499 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
€1,926 EUR