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Cushion|Natural|GIA

1.78ct G SI2 Cushion Natural Diamond

G/SI2 • GIA 5161068635

Certificate GIA 5161068635

Diamond specifications and retailer prices

From $15,641 AUD
€10,464 EUR
As of November 2, 2026
1 retailer carries this diamond
Only listing: $15,641 AUD at Yorxs
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at Yorxs

About this 1.78ct natural cushion diamond

This 1.78ct natural cushion sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and SI2 clarity (slightly-included) and certified by GIA 5161068635. Listed at a single retailer as of November 2, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. 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

1.78
Carat
G
Colour
SI2
Clarity
-
Cut

Specifications

Cut
PolishGood
SymmetryGood
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 5161068635
Dimensions8.22 × 6.87 × 4.14 mm
L/W Ratio1.20
Culet sizeVery Large
Top View
8.22 mm6.87 mm1.78 ctG / SI2
OriginNatural
PolishGood
SymmetryGood
FluorescenceFaint
CertificateGIA 5161068635
Side View
Table 60.0%CrownGirdle: Slightly ThickPavilionCulet: Very LargeDepth 60.3%

Caratlytics Score

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C
Average
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Price History

Last verified: Nov 2
Current: $15,641 AUD|Low: $15,335 AUD|High: $15,641 AUD|Avg: $15,528 AUD|+1.9%
November 2, 2026
Yorxs$15,641 AUD

17 data points across 1 retailer

1 retailer

C
Yorxs
508330923 · Nov 2
$15,641 AUD
€10,464 EUR
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C
1.78ct Cushion
$15,641 AUD