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Cushion|Natural|GIA

0.90ct K SI1 Cushion Natural Diamond

GD • K/SI1 • GIA 5543153205

Certificate GIA 5543153205

Diamond specifications and retailer prices

From €506 EUR
As of November 6, 2026
Save €175 EUR (26%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: €681 EUR at 77 Diamonds · As of November 7, 2026
View at 77 Diamonds

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 5543153205. Listed at 5 retailers as of November 6, 2026, with prices from €506 to €681, a €175 spread on the same certified stone. 77 Diamonds lists it at €681. 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
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5543153205
Dimensions5.36 × 5.34 × 3.61 mm
L/W Ratio1.00
Top View
5.36 mm5.34 mm0.90 ctK / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5543153205
Side View
Table 65.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 67.6%

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: €681 EUR|Low: €454 EUR|High: €719 EUR|Avg: €597 EUR|-0.6%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 7, 2026
Retailer 7€478 EUR
Retailer 5€506 EUR
Retailer 2€519 EUR
Retailer 4€623 EUR
Retailer 3€648 EUR
Retailer 6€678 EUR
77 Diamonds€681 EUR

41 data points across 7 retailers

5 retailers€506 EUR to €681 EUR

A
Cheapest Retailer
-
€506 EUR
Final sale: no returns
A
Retailer 2
-
€519 EUR
View
B+
Retailer 3
-
€623 EUR
View
B+
Retailer 4
-
€648 EUR
View
Most Expensive
B+
77 Diamonds
CUSCPYUQHYWCJ · Nov 7
€681 EUR
£599 GBP
View
4 more retailers have this diamond
Prices start from €506 EURSave up to €175 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
€506 EUR