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Cushion|Natural|GIA

0.51ct D SI2 Cushion Natural Diamond

GD • D/SI2 • GIA 6565226153

Certificate GIA 6565226153

Diamond specifications and retailer prices

From $631 CAD
$452 USD
As of October 29, 2026
Save $160 CAD (20%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $792 CAD at 77 Diamonds · As of October 30, 2026
View at 77 Diamonds

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 6565226153. Listed at 4 retailers as of October 29, 2026, with prices from $631 to $792, a $160 spread on the same certified stone. 77 Diamonds lists it at $792. 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
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6565226153
Dimensions4.53 × 4.43 × 3.01 mm
L/W Ratio1.02
Culet sizeNone
Key to symbols
Crystal
Top View
4.53 mm4.43 mm0.51 ctD / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6565226153
Side View
Table 64.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 68.0%

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 29
Current: $792 CAD|Low: $631 CAD|High: $792 CAD|Avg: $699 CAD|+5.8%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
October 30, 2026
Retailer 2$631 CAD
Retailer 4$643 CAD
Retailer 3$686 CAD
77 Diamonds$792 CAD

39 data points across 4 retailers

4 retailers$631 CAD to $792 CAD

A
Cheapest Retailer
-
$631 CAD
$452 USD
Final sale: no returns
Retailer 2
-
$643 CAD
$460 USD
View
Price last confirmed 9 days ago
B+
Retailer 3
-
$686 CAD
SGD 664 SGD
View
Most Expensive
B+
77 Diamonds
CUSCP6MB47FXP · Oct 30
$792 CAD
£446 GBP
View
3 more retailers have this diamond
Prices start from $631 CADSave up to $160 CAD

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
$631 CAD