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Cushion|Natural|GIA

0.51ct D SI1 Cushion Natural Diamond

GD • D/SI1 • GIA 7511675994

Certificate GIA 7511675994

Diamond specifications and retailer prices

From €429 EUR
As of November 6, 2026
Save €884 EUR (67%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: €1,313 EUR at MOH London · As of November 2, 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 D colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 7511675994. Listed at 14 retailers as of November 2, 2026, with prices from €429 to €1,313, a €884 spread on the same certified stone. MOH London lists it at €1,313. 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
D
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7511675994
Dimensions5.73 × 4.07 × 2.93 mm
L/W Ratio1.41
Key to symbols
Crystal, Cloud
Top View
5.73 mm4.07 mm0.51 ctD / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7511675994
Side View
Table 62.0%CrownGirdle: ThickPavilionCulet: NoneDepth 71.9%

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: €1,313 EUR|Low: €429 EUR|High: €1,366 EUR|Avg: €758 EUR|-3.6%
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
November 6, 2026
Retailer 2€429 EUR
Retailer 5€493 EUR
Retailer 13€608 EUR
Retailer 10€612 EUR
Retailer 9€686 EUR
Retailer 7€692 EUR
Retailer 12€712 EUR
Retailer 11€734 EUR
Retailer 3€813 EUR
Retailer 4€818 EUR
Retailer 6€831 EUR
Retailer 8€877 EUR
MOH London€1,313 EUR

31 data points across 13 retailers

14 retailers€429 EUR to €1,313 EUR

A
Cheapest Retailer
-
€429 EUR
B+
Retailer 2
-
€493 EUR
View
Retailer 3
-
€608 EUR
View
Price last confirmed 11 days ago
Retailer 4
-
€612 EUR
View
Price last confirmed 9 days ago
B
Retailer 5
-
€686 EUR
View
B
Retailer 6
-
€692 EUR
View
B
Retailer 7
-
€712 EUR
View
B+
Retailer 8
-
€734 EUR
View
B
Retailer 9
-
€813 EUR
View
Retailer 10
-
€818 EUR
View
Price last confirmed 17 days ago
B
Retailer 11
-
€831 EUR
View
B
Retailer 12
-
€877 EUR
View
Retailer 13
-
€879 EUR
View
Price last confirmed 33 days ago
Most Expensive
B
MOH London
DE2A94A13 · Nov 2
€1,313 EUR
£1,154 GBP
View
13 more retailers have this diamond
Prices start from €429 EURSave up to €884 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
€429 EUR