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Cushion|Natural|GIA

0.51ct E SI1 Cushion Natural Diamond

VG • E/SI1 • GIA 1555383416

Certificate GIA 1555383416

Diamond specifications and retailer prices

From €401 EUR
As of November 6, 2026
Save €660 EUR (62%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: €1,061 EUR at MOH London · As of November 4, 2026
View at MOH London

About this 0.51ct natural cushion diamond

This 0.51ct natural cushion sits in the half to three-quarter carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1555383416. Listed at 17 retailers as of November 4, 2026, with prices from €401 to €1,061, a €660 spread on the same certified stone. MOH London lists it at €1,061. 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

0.51
Carat
E
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1555383416
Dimensions5.31 × 4.24 × 2.92 mm
L/W Ratio1.25
Girdle conditionFaceted
Top View
5.31 mm4.24 mm0.51 ctE / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1555383416
Side View
Table 69.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 68.8%

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: €1,061 EUR|Low: €425 EUR|High: €1,091 EUR|Avg: €626 EUR|-2.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 3€425 EUR
Retailer 4€480 EUR
Retailer 6€489 EUR
Retailer 2€496 EUR
Retailer 5€562 EUR
Retailer 7€571 EUR
Retailer 11€576 EUR
Retailer 12€640 EUR
Retailer 9€682 EUR
Retailer 10€701 EUR
Retailer 8€713 EUR
MOH London€1,061 EUR

27 data points across 12 retailers

17 retailers€401 EUR to €1,061 EUR

A
Cheapest Retailer
-
€401 EUR
A
Retailer 2
-
€425 EUR
View
Final sale: no returns
A
Retailer 3
-
€480 EUR
View
A
Retailer 4
-
€489 EUR
View
A
Retailer 5
-
€496 EUR
View
B+
Retailer 6
-
€505 EUR
View
B+
Retailer 7
-
€562 EUR
View
B+
Retailer 8
-
€571 EUR
View
Retailer 9
-
€576 EUR
View
Price last confirmed 8 days ago
B+
Retailer 10
-
€640 EUR
View
B+
Retailer 11
-
€665 EUR
View
B
Retailer 12
-
€679 EUR
View
B+
Retailer 13
-
€682 EUR
View
B
Retailer 14
-
€701 EUR
View
Retailer 15
-
€701 EUR
View
Price last confirmed 35 days ago
B+
Retailer 16
-
€713 EUR
View
Most Expensive
B
MOH London
99DB9A894 · Nov 4
€1,061 EUR
£933 GBP
View
16 more retailers have this diamond
Prices start from €401 EURSave up to €660 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
0.51ct Cushion
€401 EUR