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Cushion|Natural|GIA

1.30ct F SI1 Cushion Natural Diamond

VG • F/SI1 • GIA 1558229360

Certificate GIA 1558229360

Diamond specifications and retailer prices

From $6,452 AUD
As of November 6, 2026
Save $6,298 AUD (49%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $12,750 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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 1558229360. Listed at 14 retailers as of November 6, 2026, with prices from $6,452 to $12,750, a $6,298 spread on the same certified stone. MOH London lists it at $12,750. 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
Crown angle39.2°
Pavilion angle30.5°
OriginNatural
Grading LabGIA
CertificateGIA 1558229360
Dimensions7.46 × 5.33 × 3.67 mm
L/W Ratio1.40
Top View
7.46 mm5.33 mm1.30 ctF / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1558229360
Side View
Table 66.0%Crown 39.2°Girdle: Very ThickPavilion 30.5°Culet: NDepth 68.9%

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 6
Current: $12,750 AUD|Low: $6,810 AUD|High: $12,974 AUD|Avg: $8,434 AUD|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 7, 2026
Retailer 12$6,810 AUD
Retailer 3$7,082 AUD
Retailer 10$7,428 AUD
Retailer 4$7,532 AUD
Retailer 6$7,795 AUD
Retailer 9$8,048 AUD
Retailer 11$8,060 AUD
Retailer 5$8,561 AUD
Retailer 7$9,057 AUD
Retailer 2$9,593 AUD
Retailer 8$9,820 AUD
MOH London$12,750 AUD

41 data points across 12 retailers

14 retailers$6,452 AUD to $12,750 AUD

B+
Cheapest Retailer
-
$6,452 AUD
B
Retailer 2
-
$6,810 AUD
View
B
Retailer 3
-
$7,019 AUD
View
B
Retailer 4
-
$7,082 AUD
View
B
Retailer 5
-
$7,428 AUD
View
Final sale: no returns
B
Retailer 6
-
$7,532 AUD
View
B
Retailer 7
-
$7,795 AUD
View
Retailer 8
-
$8,048 AUD
View
Price last confirmed 9 days ago
Retailer 9
-
$8,060 AUD
View
Price last confirmed 29 days ago
Retailer 10
-
$8,561 AUD
View
B
Retailer 11
-
$9,057 AUD
View
Retailer 12
-
$9,593 AUD
View
B
Retailer 13
-
$9,820 AUD
View
Most Expensive
B
MOH London
844321A5A · Nov 7
$12,750 AUD
£6,898 GBP
View
13 more retailers have this diamond
Prices start from $6,452 AUDSave up to $6,298 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
$6,452 AUD