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Cushion|Natural|GIA

1.21ct E SI1 Cushion Natural Diamond

EX • E/SI1 • GIA 5231993495

Certificate GIA 5231993495

Diamond specifications and retailer prices

From €2,006 EUR
As of November 6, 2026
Save €2,392 EUR (54%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: €4,399 EUR at MOH London · As of November 4, 2026
View at MOH London

About this 1.21ct natural cushion diamond

This 1.21ct natural cushion sits in the classic one-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 5231993495. Listed at 15 retailers as of November 4, 2026, with prices from €2,006 to €4,399, a €2,392 spread on the same certified stone. MOH London lists it at €4,399. 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

1.21
Carat
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.4°
Pavilion angle36.5°
OriginNatural
Grading LabGIA
CertificateGIA 5231993495
Dimensions6.42 × 6.10 × 4.01 mm
L/W Ratio1.05
Culet sizeNone
Top View
6.42 mm6.10 mm1.21 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5231993495
Side View
Table 59.0%Crown 38.4°Girdle: MED-ETKPavilion 36.5°Culet: NoneDepth 65.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: €4,399 EUR|Low: €1,979 EUR|High: €4,649 EUR|Avg: €2,772 EUR|-5.4%
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
November 6, 2026
Retailer 10€2,006 EUR
Retailer 8€2,018 EUR
Retailer 9€2,142 EUR
Retailer 3€2,205 EUR
Retailer 14€2,250 EUR
Retailer 5€2,459 EUR
Retailer 4€2,588 EUR
Retailer 12€2,588 EUR
Retailer 13€2,678 EUR
Retailer 7€2,792 EUR
Retailer 2€2,891 EUR
Retailer 6€2,934 EUR
Retailer 11€3,232 EUR
MOH London€4,399 EUR

41 data points across 14 retailers

15 retailers€2,006 EUR to €4,399 EUR

A
Cheapest Retailer
-
€2,006 EUR
A
Retailer 2
-
€2,018 EUR
View
A
Retailer 3
-
€2,142 EUR
View
A
Retailer 4
-
€2,205 EUR
View
Final sale: no returns
A
Retailer 5
-
€2,250 EUR
View
B+
Retailer 6
-
€2,459 EUR
View
B+
Retailer 7
-
€2,588 EUR
View
B+
Retailer 8
-
€2,588 EUR
View
B+
Retailer 9
-
€2,678 EUR
View
B+
Retailer 10
-
€2,792 EUR
View
B+
Retailer 11
-
€2,891 EUR
View
Retailer 12
-
€2,934 EUR
View
Price last confirmed 30 days ago
Retailer 13
-
€3,188 EUR
View
Price last confirmed 14 days ago
B+
Retailer 14
-
€3,232 EUR
View
Most Expensive
B
MOH London
B80125C31 · Nov 4
€4,399 EUR
£3,867 GBP
View
14 more retailers have this diamond
Prices start from €2,006 EURSave up to €2,392 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
1.21ct Cushion
€2,006 EUR