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Cushion|Natural|GIA

1.51ct M SI1 Cushion Natural Diamond

EX • M/SI1 • GIA 6565590044

Certificate GIA 6565590044

Diamond specifications and retailer prices

From €1,249 EUR
As of November 6, 2026
Save €1,122 EUR (47%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: €2,372 EUR at Diamonds Direct · As of November 6, 2026
View at Diamonds Direct

About this 1.51ct natural cushion diamond

This 1.51ct 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 6565590044. Listed at 3 retailers as of November 6, 2026, with prices from €1,249 to €2,372, a €1,122 spread on the same certified stone. Diamonds Direct lists it at €2,372. 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

1.51
Carat
M
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6565590044
Dimensions6.56 × 6.47 × 4.43 mm
L/W Ratio1.01
Key to symbols
Crystal, Cloud, Feather
Top View
6.56 mm6.47 mm1.51 ctM / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6565590044
Side View
Table 62.0%CrownGirdle: MED-VTKPavilionCuletDepth 68.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 6
Current: €2,372 EUR|Low: €1,238 EUR|High: €2,372 EUR|Avg: €1,735 EUR
Diamonds Direct
Retailer 2
Retailer 3
November 6, 2026
Retailer 3€1,249 EUR
Retailer 2€1,693 EUR
Diamonds Direct€2,372 EUR

11 data points across 3 retailers

3 retailers€1,249 EUR to €2,372 EUR

A
Cheapest Retailer
-
€1,249 EUR
B+
Retailer 2
-
€1,693 EUR
View
Most Expensive
B+
Diamonds Direct
1150004 · Nov 6
€2,372 EUR
$2,648 USD
View
2 more retailers have this diamond
Prices start from €1,249 EURSave up to €1,122 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
1.51ct Cushion
€1,249 EUR