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Cushion|Natural|GIA

1.30ct F SI2 Cushion Natural Diamond

ID • F/SI2 • GIA 2557836902

Certificate GIA 2557836902

Diamond specifications and retailer prices

From $3,025 AUD
HK$16,600 HKD
As of November 1, 2026
Save $5,780 AUD (66%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $8,805 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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2557836902. Listed at 13 retailers as of October 28, 2026, with prices from $3,025 to $8,805, a $5,780 spread on the same certified stone. Queensmith lists it at $8,805. 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

1.30
Carat
F
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2557836902
Dimensions7.56 × 5.49 × 3.72 mm
L/W Ratio1.38
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Cloud, Feather, Needle, Indented Natural
Top View
7.56 mm5.49 mm1.30 ctF / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2557836902
Side View
Table 65.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 67.7%

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 1
Current: $8,805 AUD|Low: $3,007 AUD|High: $8,968 AUD|Avg: $4,689 AUD|+1.1%
Queensmith
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 6$3,025 AUD
Retailer 3$3,186 AUD
Retailer 2$3,194 AUD
Retailer 9$4,029 AUD
Retailer 11$4,217 AUD
Retailer 8$4,231 AUD
Retailer 4$4,308 AUD
Retailer 10$4,385 AUD
Retailer 7$4,718 AUD
Retailer 5$7,060 AUD
Queensmith$8,805 AUD

31 data points across 11 retailers

13 retailers$3,025 AUD to $8,805 AUD

A
Cheapest Retailer
-
$3,025 AUD
HK$16,600 HKD
A
Retailer 2
-
$3,186 AUD
SGD 3,024 SGD
View
A
Retailer 3
-
$3,194 AUD
₹213,689 INR
View
A
Retailer 4
-
$3,932 AUD
$2,762 USD
View
A
Retailer 5
-
$4,029 AUD
$2,830 USD
View
A
Retailer 6
-
$4,217 AUD
SGD 4,003 SGD
View
A
Retailer 7
-
$4,231 AUD
$2,972 USD
View
A
Retailer 8
-
$4,308 AUD
£2,383 GBP
View
A
Retailer 9
-
$4,357 AUD
View
A
Retailer 10
-
$4,385 AUD
$3,080 USD
View
A
Retailer 11
-
$4,718 AUD
€3,156 EUR
View
B
Retailer 12
-
$7,060 AUD
£3,905 GBP
View
Most Expensive
B
Queensmith
2557836902 · Oct 28
$8,805 AUD
£4,870 GBP
View
12 more retailers have this diamond
Prices start from $3,025 AUDSave up to $5,780 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
$3,025 AUD