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Cushion|Natural|GIA

1.30ct F SI1 Cushion Natural Diamond

EX • F/SI1 • GIA 1439179846

Certificate GIA 1439179846

Diamond specifications and retailer prices

From $6,020 AUD
As of November 5, 2026
Save $6,050 AUD (50%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $12,070 AUD at MOH London · As of November 7, 2026
View at MOH London

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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1439179846. Listed at 15 retailers as of November 5, 2026, with prices from $6,020 to $12,070, a $6,050 spread on the same certified stone. MOH London lists it at $12,070. 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
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1439179846
Dimensions6.52 × 5.84 × 4.00 mm
L/W Ratio1.12
Girdle conditionFaceted
Culet sizeNone
Cert comments
Additional clouds are not shown. Pinpoints are not shown.
Key to symbols
Cloud, Crystal, Feather, Needle
Top View
6.52 mm5.84 mm1.30 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1439179846
Side View
Table 60.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 68.5%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $12,070 AUD|Low: $6,135 AUD|High: $12,282 AUD|Avg: $8,322 AUD|-1.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 7, 2026
Retailer 8$6,135 AUD
Retailer 5$7,401 AUD
Retailer 2$7,440 AUD
Retailer 4$7,549 AUD
Retailer 9$7,680 AUD
Retailer 3$8,107 AUD
Retailer 6$8,574 AUD
Retailer 7$9,296 AUD
MOH London$12,070 AUD

36 data points across 9 retailers

15 retailers$6,020 AUD to $12,070 AUD

B+
Cheapest Retailer
-
$6,020 AUD
B+
Retailer 2
-
$6,135 AUD
View
B+
Retailer 3
-
$6,424 AUD
View
B+
Retailer 4
-
$6,513 AUD
View
B+
Retailer 5
-
$6,848 AUD
View
Retailer 6
-
$6,903 AUD
View
Price last confirmed 9 days ago
B+
Retailer 7
-
$7,306 AUD
View
B+
Retailer 8
-
$7,401 AUD
View
B+
Retailer 9
-
$7,440 AUD
View
B+
Retailer 10
-
$7,549 AUD
View
Retailer 11
-
$7,680 AUD
View
Price last confirmed 29 days ago
Retailer 12
-
$8,107 AUD
View
B
Retailer 13
-
$8,574 AUD
View
B
Retailer 14
-
$9,296 AUD
View
Most Expensive
B
MOH London
EAFA9A98E · Nov 7
$12,070 AUD
£6,530 GBP
View
14 more retailers have this diamond
Prices start from $6,020 AUDSave up to $6,050 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+
1.30ct Cushion
$6,020 AUD