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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 $654 SGD
As of November 6, 2026
Save $61 SGD (9%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $715 SGD 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
Colour
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: $715 SGD|Low: $575 SGD|High: $1,141 SGD|Avg: $815 SGD|+0.3%
Fonder Diamond
Retailer 2
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Retailer 19
November 5, 2026
Retailer 5$575 SGD
Retailer 18$577 SGD
Retailer 6$654 SGD
Retailer 13$656 SGD
Retailer 14$688 SGD
Fonder Diamond$715 SGD
Retailer 19$754 SGD
Retailer 17$760 SGD
Retailer 8$795 SGD
Retailer 9$795 SGD
Retailer 7$820 SGD
Retailer 16$839 SGD
Retailer 2$861 SGD
Retailer 15$882 SGD
Retailer 3$936 SGD
Retailer 11$996 SGD
Retailer 10$1,016 SGD
Retailer 12$1,024 SGD
Retailer 4$1,141 SGD

6 data points across 19 retailers

2 retailers$654 SGD to $715 SGD

A
Cheapest Retailer
-
$654 SGD
Most Expensive
B+
Fonder Diamond
636701768 · Nov 5
$715 SGD
View
1 more retailer has this diamond
Prices start from $654 SGDSave up to $61 SGD

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
$654 SGD