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Cushion|Natural|GIA

1.30ct E SI1 Cushion Natural Diamond

ID • E/SI1 • GIA 6541950338

Certificate GIA 6541950338

Diamond specifications and retailer prices

From $5,496 AUD
As of November 6, 2026
Save $5,868 AUD (52%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $11,364 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 E 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 6541950338. Listed at 19 retailers as of November 6, 2026, with prices from $5,496 to $11,364, a $5,868 spread on the same certified stone. MOH London lists it at $11,364. 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
E
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.75°
Pavilion angle54.07°
OriginNatural
Grading LabGIA
CertificateGIA 6541950338
Dimensions7.23 × 5.49 × 3.81 mm
L/W Ratio1.32
Top View
7.23 mm5.49 mm1.30 ctE / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6541950338
Side View
Table 65.0%Crown 42.75°Girdle: THN-THKPavilion 54.07°Culet: NoneDepth 69.4%

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: $11,364 AUD|Low: $5,458 AUD|High: $11,486 AUD|Avg: $7,321 AUD|-1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
November 7, 2026
Retailer 18$5,496 AUD
Retailer 11$5,517 AUD
Retailer 9$6,257 AUD
Retailer 2$6,586 AUD
Retailer 7$6,621 AUD
Retailer 17$6,632 AUD
Retailer 3$6,753 AUD
Retailer 6$6,998 AUD
Retailer 13$7,003 AUD
Retailer 14$7,081 AUD
Retailer 4$7,174 AUD
Retailer 8$7,393 AUD
Retailer 5$7,485 AUD
Retailer 10$7,540 AUD
Retailer 15$8,072 AUD
Retailer 16$8,751 AUD
Retailer 12$9,108 AUD
MOH London$11,364 AUD

22 data points across 18 retailers

19 retailers$5,496 AUD to $11,364 AUD

A
Cheapest Retailer
-
$5,496 AUD
A
Retailer 2
-
$5,517 AUD
View
A
Retailer 3
-
$6,257 AUD
View
A
Retailer 4
-
$6,586 AUD
View
A
Retailer 5
-
$6,621 AUD
View
Final sale: no returns
A
Retailer 6
-
$6,632 AUD
View
B+
Retailer 7
-
$6,753 AUD
View
Retailer 8
-
$6,998 AUD
View
Price last confirmed 11 days ago
B+
Retailer 9
-
$7,003 AUD
View
B+
Retailer 10
-
$7,081 AUD
View
B+
Retailer 11
-
$7,174 AUD
View
B+
Retailer 12
-
$7,393 AUD
View
B+
Retailer 13
-
$7,485 AUD
View
B+
Retailer 14
-
$7,540 AUD
View
Retailer 15
-
$7,850 AUD
View
Price last confirmed 29 days ago
B+
Retailer 16
-
$8,072 AUD
View
B+
Retailer 17
-
$8,751 AUD
View
B
Retailer 18
-
$9,108 AUD
View
Most Expensive
B
MOH London
41D720B37 · Nov 7
$11,364 AUD
£6,148 GBP
View
18 more retailers have this diamond
Prices start from $5,496 AUDSave up to $5,868 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
$5,496 AUD