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Cushion|Natural|GIA

0.51ct D SI2 Cushion Natural Diamond

EX • D/SI2 • GIA 6117390925

Shape and cutting style on the report: Cushion modified brilliant

Certificate GIA 6117390925

Diamond specifications and retailer prices

From $862 CAD
$617 USD
As of October 31, 2026
Save $314 CAD (27%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $1,176 CAD at 77 Diamonds · As of October 31, 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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6117390925. Listed at 2 retailers as of October 31, 2026, with prices from $862 to $1,176, a $314 spread on the same certified stone. 77 Diamonds lists it at $1,176. 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

0.51
Carat
D
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6117390925
Dimensions4.78 × 4.73 × 3.07 mm
L/W Ratio1.01
Top View
4.78 mm4.73 mm0.51 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryGood
FluorescenceNone
CertificateGIA 6117390925
Side View
Table 67.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 64.9%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Oct 31
Current: $1,176 CAD|Low: $862 CAD|High: $1,474 CAD|Avg: $1,171 CAD|+1.0%
77 Diamonds
Retailer 2
Retailer 3
October 31, 2026
Retailer 2$862 CAD
77 Diamonds$1,176 CAD
Retailer 3$1,474 CAD

37 data points across 3 retailers

2 retailers$862 CAD to $1,176 CAD

B+
Cheapest Retailer
-
$862 CAD
$617 USD
Most Expensive
B+
77 Diamonds
CUSZWDTFHNBH · Oct 31
$1,176 CAD
£663 GBP
View
1 more retailer has this diamond
Prices start from $862 CADSave up to $314 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.

B+
0.51ct Cushion
$862 CAD