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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 $920 NZD
As of November 6, 2026
Save $87 NZD (9%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $1,007 NZD 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: $1,007 NZD|Low: $810 NZD|High: $1,605 NZD|Avg: $1,147 NZD|+0.3%
Fonder Diamond
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
November 5, 2026
Retailer 5$810 NZD
Retailer 18$812 NZD
Retailer 6$920 NZD
Retailer 13$924 NZD
Retailer 14$969 NZD
Fonder Diamond$1,007 NZD
Retailer 19$1,061 NZD
Retailer 17$1,070 NZD
Retailer 8$1,118 NZD
Retailer 9$1,118 NZD
Retailer 7$1,154 NZD
Retailer 16$1,182 NZD
Retailer 2$1,212 NZD
Retailer 15$1,241 NZD
Retailer 3$1,317 NZD
Retailer 11$1,402 NZD
Retailer 10$1,430 NZD
Retailer 12$1,441 NZD
Retailer 4$1,605 NZD

6 data points across 19 retailers

2 retailers$920 NZD to $1,007 NZD

A
Cheapest Retailer
-
$920 NZD
Most Expensive
B+
Fonder Diamond
636701768 · Nov 5
$1,007 NZD
SGD 754 SGD
View
1 more retailer has this diamond
Prices start from $920 NZDSave up to $87 NZD

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
$920 NZD