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Cushion|Natural|GIA

0.90ct K SI1 Cushion Natural Diamond

GD • K/SI1 • GIA 5366601877

Certificate GIA 5366601877

Diamond specifications and retailer prices

From €1,184 EUR
As of November 6, 2026
Save €1,367 EUR (54%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: €2,551 EUR at MOH London · As of November 2, 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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 5366601877. Listed at 15 retailers as of November 2, 2026, with prices from €1,184 to €2,551, a €1,367 spread on the same certified stone. MOH London lists it at €2,551. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.90
Carat
K
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 5366601877
Dimensions5.42 × 5.33 × 3.63 mm
L/W Ratio1.02
Top View
5.42 mm5.33 mm0.90 ctK / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 5366601877
Side View
Table 59.0%CrownGirdle: STK-ETKPavilionCulet: NoneDepth 68.0%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: €2,551 EUR|Low: €1,223 EUR|High: €2,582 EUR|Avg: €1,677 EUR
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 7, 2026
Retailer 6€1,223 EUR
Retailer 8€1,240 EUR
Retailer 5€1,319 EUR
Retailer 9€1,402 EUR
Retailer 7€1,470 EUR
Retailer 2€1,615 EUR
Retailer 3€1,978 EUR
Retailer 4€2,133 EUR
MOH London€2,551 EUR

45 data points across 9 retailers

15 retailers€1,184 EUR to €2,551 EUR

B+
Cheapest Retailer
-
€1,184 EUR
B+
Retailer 2
-
€1,206 EUR
View
B
Retailer 3
-
€1,223 EUR
View
Retailer 4
-
€1,223 EUR
View
Price last confirmed 17 days ago
B
Retailer 5
-
€1,234 EUR
View
B
Retailer 6
-
€1,240 EUR
View
B
Retailer 7
-
€1,273 EUR
View
Retailer 8
-
€1,319 EUR
View
Price last confirmed 9 days ago
B
Retailer 9
-
€1,402 EUR
View
B
Retailer 10
-
€1,470 EUR
View
B
Retailer 11
-
€1,615 EUR
View
B
Retailer 12
-
€1,978 EUR
View
C
Retailer 13
-
€2,082 EUR
View
B
Retailer 14
-
€2,133 EUR
View
Most Expensive
C
MOH London
74A7CDBAF · Nov 2
€2,551 EUR
£2,243 GBP
View
14 more retailers have this diamond
Prices start from €1,184 EURSave up to €1,367 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.

B+
0.90ct Cushion
€1,184 EUR