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Cushion|Natural|GIA

0.51ct G SI1 Cushion Natural Diamond

EX • G/SI1 • GIA 1545558858

Certificate GIA 1545558858

Diamond specifications and retailer prices

From $717 CAD
As of November 6, 2026
Save $67 CAD (9%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $785 CAD at Fonder Diamond · As of November 5, 2026
View at Fonder Diamond

About this 0.51ct natural cushion diamond

This 0.51ct natural cushion sits in the half to three-quarter carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1545558858. Listed at 2 retailers as of November 5, 2026, with a relatively tight 9% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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
G
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Pavilion angle41.1°
OriginNatural
Grading LabGIA
CertificateGIA 1545558858
Dimensions4.68 × 4.66 × 3.12 mm
L/W Ratio1.00
Girdle conditionFaceted
Top View
4.68 mm4.66 mm0.51 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1545558858
Side View
Table 65.0%CrownGirdle: STK-VTKPavilion 41.1°Culet: NoneDepth 66.9%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 6
Current: $785 CAD|Low: $632 CAD|High: $1,252 CAD|Avg: $894 CAD|+0.3%
Fonder Diamond
Retailer 2
Retailer 3
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Retailer 5
Retailer 6
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Retailer 8
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Retailer 11
Retailer 12
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Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
November 5, 2026
Retailer 5$632 CAD
Retailer 18$633 CAD
Retailer 6$717 CAD
Retailer 13$720 CAD
Retailer 14$755 CAD
Fonder Diamond$785 CAD
Retailer 19$827 CAD
Retailer 17$834 CAD
Retailer 8$872 CAD
Retailer 9$872 CAD
Retailer 7$900 CAD
Retailer 16$921 CAD
Retailer 2$945 CAD
Retailer 15$968 CAD
Retailer 3$1,027 CAD
Retailer 11$1,093 CAD
Retailer 10$1,115 CAD
Retailer 12$1,124 CAD
Retailer 4$1,252 CAD

6 data points across 19 retailers

2 retailers$717 CAD to $785 CAD

A
Cheapest Retailer
-
$717 CAD
Most Expensive
B+
Fonder Diamond
636701768 · Nov 5
$785 CAD
SGD 754 SGD
View
1 more retailer has this diamond
Prices start from $717 CADSave up to $67 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
$717 CAD