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Cushion|Natural|GIA

3.09ct F SI1 Cushion Natural Diamond

VG • F/SI1 • GIA 6452601770

Certificate GIA 6452601770

Diamond specifications and retailer prices

From $55,352 AUD
As of November 6, 2026
Save $2,068 AUD (4%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $57,420 AUD at Adiamor · As of November 5, 2026
View at Adiamor

About this 3.09ct natural cushion diamond

This 3.09ct natural cushion sits in the three to five carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6452601770. Listed at 3 retailers as of November 5, 2026, with a relatively tight 4% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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

3.09
Carat
F
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryGood
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6452601770
Dimensions9.84 × 7.91 × 5.24 mm
L/W Ratio1.24
Top View
9.84 mm7.91 mm3.09 ctF / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryGood
FluorescenceFaint
CertificateGIA 6452601770
Side View
Table 71.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 66.2%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 6
Current: $57,420 AUD|Low: $52,773 AUD|High: $62,611 AUD|Avg: $57,050 AUD
Adiamor
Retailer 2
Retailer 3
Retailer 4
October 19, 2026
Retailer 2$52,773 AUD
Retailer 3$55,352 AUD
Adiamor$57,420 AUD
Retailer 4$62,611 AUD

3 data points across 4 retailers

3 retailers$55,352 AUD to $57,420 AUD

Retailer 1
-
$52,773 AUD
Price last confirmed 10 days ago
B+
Retailer 2
-
$55,352 AUD
View
Most Expensive
B
Adiamor
D-77594562 · Nov 5
$57,420 AUD
$39,453 USD
View
2 more retailers have this diamond
Prices start from $55,352 AUDSave up to $2,068 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+
3.09ct Cushion
$55,352 AUD