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Cushion|Natural|GIA

0.53ct E SI1 Cushion Natural Diamond

EX • E/SI1 • GIA 6551486569

Certificate GIA 6551486569

Diamond specifications and retailer prices

From €389 EUR
As of November 2, 2026
Save €114 EUR (23%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: €521 EUR at Blue Nile · As of October 31, 2026
View at Blue Nile

About this 0.53ct natural cushion diamond

This 0.53ct natural cushion sits in the half to three-quarter 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 6551486569. Listed at 3 retailers as of November 2, 2026, with a 29% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

0.53
Carat
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6551486569
Dimensions4.62 × 4.52 × 2.99 mm
L/W Ratio1.02
Culet sizeNone
Key to symbols
Cloud, Crystal
Top View
4.62 mm4.52 mm0.53 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6551486569
Side View
Table 64.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 66.2%

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 2
Current: €521 EUR|Low: €344 EUR|High: €550 EUR|Avg: €450 EUR|-5.2%
Blue Nile
Retailer 2
Retailer 3
Retailer 4
November 3, 2026
Retailer 4€389 EUR
Retailer 3€401 EUR
Retailer 2€502 EUR
Blue Nile€521 EUR

38 data points across 4 retailers

3 retailers€389 EUR to €502 EUR

A
Cheapest Retailer
-
€389 EUR
A
Retailer 2
-
€502 EUR
View
Most Expensive
Blue Nile
29380591 · Oct 31
€521 EUR
$582 USD
View
Price last confirmed 7 days ago
2 more retailers have this diamond
Prices start from €389 EURSave up to €114 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
0.53ct Cushion
€389 EUR