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Cushion|Natural|GIA

1.30ct F SI1 Cushion Natural Diamond

VG • F/SI1 • GIA 2534798320

Certificate GIA 2534798320

Diamond specifications and retailer prices

From $4,058 AUD
As of November 6, 2026
Save $4,481 AUD (52%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $9,843 AUD at Queensmith · As of October 28, 2026
View at Queensmith

About this 1.3ct natural cushion diamond

This 1.3ct natural cushion sits in the one-and-a-quarter to one-and-a-half 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 2534798320. Listed at 14 retailers as of November 4, 2026, with a 110% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.30
Carat
F
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2534798320
Dimensions6.20 × 5.68 × 3.86 mm
L/W Ratio1.09
Top View
6.20 mm5.68 mm1.30 ctF / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2534798320
Side View
Table 71.0%CrownGirdle: VTK-ETKPavilionCulet: NoneDepth 68.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $9,843 AUD|Low: $4,058 AUD|High: $9,879 AUD|Avg: $6,046 AUD|-0.4%
Queensmith
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 7, 2026
Retailer 8$4,058 AUD
Retailer 11$4,650 AUD
Retailer 4$4,726 AUD
Retailer 7$4,927 AUD
Retailer 2$4,999 AUD
Retailer 5$5,148 AUD
Retailer 6$5,298 AUD
Retailer 3$5,331 AUD
Retailer 13$5,493 AUD
Retailer 9$5,961 AUD
Retailer 10$6,249 AUD
Retailer 12$8,539 AUD
Queensmith$9,843 AUD

24 data points across 13 retailers

14 retailers$4,058 AUD to $8,539 AUD

A
Cheapest Retailer
-
$4,058 AUD
A
Retailer 2
-
$4,650 AUD
View
A
Retailer 3
-
$4,676 AUD
View
A
Retailer 4
-
$4,726 AUD
View
Final sale: no returns
A
Retailer 5
-
$4,927 AUD
View
A
Retailer 6
-
$4,999 AUD
View
Retailer 7
-
$5,148 AUD
View
Price last confirmed 9 days ago
B+
Retailer 8
-
$5,298 AUD
View
B+
Retailer 9
-
$5,331 AUD
View
B+
Retailer 10
-
$5,493 AUD
View
B+
Retailer 11
-
$5,961 AUD
View
B+
Retailer 12
-
$6,249 AUD
View
B
Retailer 13
-
$8,539 AUD
View
Most Expensive
Queensmith
2534798320 · Oct 28
$9,843 AUD
£5,325 GBP
View
Price last confirmed 9 days ago
13 more retailers have this diamond
Prices start from $4,058 AUDSave up to $4,481 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.

A
1.30ct Cushion
$4,058 AUD