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Cushion|Natural|GIA

1.20ct E SI1 Cushion Natural Diamond

ID • E/SI1 • GIA 5553311990

Certificate GIA 5553311990

Diamond specifications and retailer prices

From €1,730 EUR
As of November 6, 2026
Save €2,280 EUR (57%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: €4,011 EUR at MOH London · As of November 4, 2026
View at MOH London

About this 1.2ct natural cushion diamond

This 1.2ct 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 5553311990. Listed at 16 retailers as of November 4, 2026, with prices from €1,730 to €4,011, a €2,280 spread on the same certified stone. MOH London lists it at €4,011. 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

1.20
Carat
E
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 5553311990
Dimensions7.10 × 5.45 × 3.71 mm
L/W Ratio1.30
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Cloud, Cavity, Needle
Top View
7.10 mm5.45 mm1.20 ctE / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceStrong
CertificateGIA 5553311990
Side View
Table 66.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 68.0%

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: €4,011 EUR|Low: €1,708 EUR|High: €4,221 EUR|Avg: €2,465 EUR|-5.0%
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
November 6, 2026
Retailer 11€1,730 EUR
Retailer 2€1,816 EUR
Retailer 9€2,102 EUR
Retailer 13€2,118 EUR
Retailer 4€2,154 EUR
Retailer 12€2,208 EUR
Retailer 5€2,381 EUR
Retailer 7€2,399 EUR
Retailer 10€2,428 EUR
Retailer 3€2,499 EUR
Retailer 8€2,801 EUR
Retailer 6€2,849 EUR
MOH London€4,011 EUR

29 data points across 13 retailers

16 retailers€1,730 EUR to €4,011 EUR

A
Cheapest Retailer
-
€1,730 EUR
A
Retailer 2
-
€1,816 EUR
View
A
Retailer 3
-
€2,102 EUR
View
A
Retailer 4
-
€2,118 EUR
View
Final sale: no returns
A
Retailer 5
-
€2,154 EUR
View
A
Retailer 6
-
€2,208 EUR
View
A
Retailer 7
-
€2,232 EUR
View
Retailer 8
-
€2,381 EUR
View
Price last confirmed 21 days ago
A
Retailer 9
-
€2,399 EUR
View
B+
Retailer 10
-
€2,403 EUR
View
A
Retailer 11
-
€2,428 EUR
View
B+
Retailer 12
-
€2,499 EUR
View
Retailer 13
-
€2,685 EUR
View
Price last confirmed 30 days ago
B+
Retailer 14
-
€2,801 EUR
View
B+
Retailer 15
-
€2,849 EUR
View
Most Expensive
B
MOH London
D9C128CBD · Nov 4
€4,011 EUR
£3,526 GBP
View
15 more retailers have this diamond
Prices start from €1,730 EURSave up to €2,280 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
1.20ct Cushion
€1,730 EUR