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Cushion|Natural|GIA

1.51ct E SI1 Cushion Natural Diamond

EX • E/SI1 • GIA 6405967587

Certificate GIA 6405967587

Diamond specifications and retailer prices

From €4,674 EUR
As of November 6, 2026
Save €4,469 EUR (49%) vs most expensive(unlock to see where)
29 retailers carry this diamond
Most expensive: €9,143 EUR at MOH London · As of November 7, 2026
View at MOH London

About this 1.51ct natural cushion diamond

This 1.51ct natural cushion sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6405967587. Listed at 29 retailers as of November 6, 2026, with prices from €4,674 to €9,143, a €4,469 spread on the same certified stone. MOH London lists it at €9,143. 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
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 6405967587
Dimensions6.51 × 6.05 × 4.51 mm
L/W Ratio1.08
Top View
6.51 mm6.05 mm1.51 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 6405967587
Side View
Table 60.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 74.6%

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: €9,143 EUR|Low: €4,922 EUR|High: €9,302 EUR|Avg: €6,705 EUR|-1.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 7, 2026
Retailer 4€4,922 EUR
Retailer 12€4,930 EUR
Retailer 2€5,464 EUR
Retailer 8€5,550 EUR
Retailer 5€5,843 EUR
Retailer 9€5,940 EUR
Retailer 3€6,056 EUR
Retailer 7€6,630 EUR
Retailer 10€6,778 EUR
Retailer 11€7,612 EUR
Retailer 6€7,649 EUR
MOH London€9,143 EUR

33 data points across 12 retailers

29 retailers€4,674 EUR to €9,143 EUR

A
Cheapest Retailer
-
€4,674 EUR
A
Retailer 2
-
€4,874 EUR
View
Retailer 3
-
€4,922 EUR
View
Price last confirmed 10 days ago
A
Retailer 4
-
€4,930 EUR
View
A
Retailer 5
-
€4,976 EUR
View
Final sale: no returns
A
Retailer 6
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€4,995 EUR
View
A
Retailer 7
-
€5,222 EUR
View
A
Retailer 8
-
€5,258 EUR
View
A
Retailer 9
-
€5,309 EUR
View
B+
Retailer 10
-
€5,464 EUR
View
B+
Retailer 11
-
€5,550 EUR
View
B+
Retailer 12
-
€5,653 EUR
View
B+
Retailer 13
-
€5,843 EUR
View
B+
Retailer 14
-
€5,880 EUR
View
B+
Retailer 15
-
€5,940 EUR
View
B+
Retailer 16
-
€5,962 EUR
View
Retailer 17
-
€6,056 EUR
View
Price last confirmed 16 days ago
B+
Retailer 18
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€6,288 EUR
View
B+
Retailer 19
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€6,288 EUR
View
B+
Retailer 20
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€6,502 EUR
View
B+
Retailer 21
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€6,630 EUR
View
B+
Retailer 22
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€6,778 EUR
View
Retailer 23
-
€6,877 EUR
View
Price last confirmed 15 days ago
B
Retailer 24
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€7,071 EUR
View
B
Retailer 25
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€7,147 EUR
View
B+
Retailer 26
-
€7,612 EUR
View
B+
Retailer 27
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€7,649 EUR
View
B
Retailer 28
-
€9,044 EUR
View
Most Expensive
B
MOH London
A7CF1D2F7 · Nov 7
€9,143 EUR
£8,038 GBP
View
28 more retailers have this diamond
Prices start from €4,674 EURSave up to €4,469 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
€4,674 EUR