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Cushion|Natural|GIA

0.90ct E SI1 Cushion Natural Diamond

EX • E/SI1 • GIA 1555245420

Certificate GIA 1555245420

Diamond specifications and retailer prices

From €768 EUR
HK$6,700 HKD
As of October 30, 2026
Save €1,050 EUR (58%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: €1,818 EUR at MOH London · As of October 29, 2026
View at MOH London

About this 0.9ct natural cushion diamond

This 0.9ct natural cushion sits in the just-under-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 1555245420. Listed at 14 retailers as of October 29, 2026, with prices from €768 to €1,818, a €1,050 spread on the same certified stone. MOH London lists it at €1,818. 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

0.90
Carat
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle34.3°
Pavilion angle34.9°
OriginNatural
Grading LabGIA
CertificateGIA 1555245420
Dimensions5.82 × 5.55 × 3.61 mm
L/W Ratio1.05
Top View
5.82 mm5.55 mm0.90 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1555245420
Side View
Table 66.0%Crown 34.3°Girdle: THN-THKPavilion 34.9°Culet: NoneDepth 65.1%

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: Oct 30
Current: €1,818 EUR|Low: €768 EUR|High: €1,906 EUR|Avg: €1,152 EUR|-4.7%
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
October 30, 2026
Retailer 13€768 EUR
Retailer 11€825 EUR
Retailer 2€916 EUR
Retailer 12€955 EUR
Retailer 5€977 EUR
Retailer 14€1,011 EUR
Retailer 3€1,083 EUR
Retailer 7€1,083 EUR
Retailer 9€1,119 EUR
Retailer 10€1,125 EUR
Retailer 8€1,235 EUR
Retailer 6€1,419 EUR
Retailer 4€1,437 EUR
MOH London€1,818 EUR

30 data points across 14 retailers

14 retailers€768 EUR to €1,818 EUR

A
Cheapest Retailer
-
€768 EUR
HK$6,700 HKD
A
Retailer 2
-
€825 EUR
$922 USD
View
Final sale: no returns
A
Retailer 3
-
€916 EUR
$1,023 USD
View
A
Retailer 4
-
€955 EUR
$1,067 USD
View
A
Retailer 5
-
€977 EUR
$1,091 USD
View
A
Retailer 6
-
€1,011 EUR
$1,130 USD
View
A
Retailer 7
-
€1,083 EUR
$1,210 USD
View
A
Retailer 8
-
€1,083 EUR
$1,210 USD
View
A
Retailer 9
-
€1,119 EUR
$1,250 USD
View
A
Retailer 10
-
€1,125 EUR
£990 GBP
View
A
Retailer 11
-
€1,235 EUR
$1,380 USD
View
Retailer 12
-
€1,419 EUR
A$2,439 AUD
View
Price last confirmed 29 days ago
A
Retailer 13
-
€1,437 EUR
View
Most Expensive
B+
MOH London
59727E12C · Oct 29
€1,818 EUR
£1,599 GBP
View
13 more retailers have this diamond
Prices start from €768 EURSave up to €1,050 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
0.90ct Cushion
€768 EUR