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Cushion|Natural|GIA

3.51ct H SI1 Cushion Natural Diamond

H/SI1

Diamond specifications and retailer prices

From $76,212 AUD
As of November 5, 2026
Save $15,832 AUD (17%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $92,044 AUD at The Diamond Guys · As of November 6, 2026
View at The Diamond Guys

About this 3.51ct natural cushion diamond

This 3.51ct natural cushion sits in the three to five carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included) and certified by GIA. Listed at 2 retailers as of November 5, 2026, with prices from $76,212 to $92,044, a $15,832 spread on the same certified stone. The Diamond Guys lists it at $92,044. 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

3.51
Carat
H
Colour
SI1
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
Dimensions10.24 × 8.19 × 5.71 mm
L/W Ratio1.25
Top View
10.24 mm8.19 mm3.51 ctH / SI1
OriginNatural
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA
Side View
Table 66.0%CrownGirdle: MediumPavilionCuletDepth 69.7%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 5
Current: $76,212 AUD|Low: $76,212 AUD|High: $92,044 AUD|Avg: $86,767 AUD
Retailer 1
The Diamond Guys
September 4, 2026
Retailer 1$76,212 AUD
The Diamond Guys$92,044 AUD

2 data points across 2 retailers

2 retailers$76,212 AUD to $92,044 AUD

B
Cheapest Retailer
-
$76,212 AUD
Most Expensive
C
The Diamond Guys
1940179289 · Nov 6
$92,044 AUD
$63,243 USD
View
1 more retailer has this diamond
Prices start from $76,212 AUDSave up to $15,832 AUD

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
3.51ct Cushion
$76,212 AUD