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Cushion|Natural|GIA

0.51ct D SI2 Cushion Natural Diamond

GD • D/SI2 • GIA 2514947193

Certificate GIA 2514947193

Diamond specifications and retailer prices

From €371 EUR
$415 USD
As of October 31, 2026
Save €209 EUR (36%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: €580 EUR at Ritani · As of October 31, 2026
View at Ritani

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 SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2514947193. Listed at 5 retailers as of October 31, 2026, with prices from €371 to €580, a €209 spread on the same certified stone. Ritani lists it at €580. 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
Color
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2514947193
Dimensions4.46 × 4.39 × 2.98 mm
L/W Ratio1.02
Top View
4.46 mm4.39 mm0.51 ctD / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2514947193
Side View
Table 62.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 67.9%

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: Oct 31
Current: €446 EUR|Low: €324 EUR|High: €586 EUR|Avg: €467 EUR
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Ritani
November 1, 2026
Retailer 3€371 EUR
Retailer 4€399 EUR
Retailer 1€446 EUR
Retailer 2€511 EUR
Ritani€580 EUR

41 data points across 5 retailers

5 retailers€371 EUR to €580 EUR

A
Cheapest Retailer
-
€371 EUR
$415 USD
Final sale: no returns
A
Retailer 2
-
€399 EUR
MYR 1,814 MYR
View
B+
Retailer 3
-
€446 EUR
SGD 673 SGD
View
B+
Retailer 4
-
€511 EUR
£449 GBP
View
Most Expensive
B+
Ritani
D-58836RBJW9 · Oct 31
€580 EUR
$648 USD
View
4 more retailers have this diamond
Prices start from €371 EURSave up to €209 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
€371 EUR