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Cushion|Natural|GIA

1.30ct H SI1 Cushion Natural Diamond

EX • H/SI1 • GIA 2566533543

Certificate GIA 2566533543

Diamond specifications and retailer prices

From $3,726 AUD
As of November 6, 2026
Save $4,695 AUD (56%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $8,421 AUD at MOH London · As of November 1, 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2566533543. Listed at 9 retailers as of November 1, 2026, with prices from $3,726 to $8,421, a $4,695 spread on the same certified stone. MOH London lists it at $8,421. 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
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2566533543
Dimensions7.32 × 5.69 × 3.95 mm
L/W Ratio1.29
Key to symbols
Crystal, Cloud, Feather, Needle
Top View
7.32 mm5.69 mm1.30 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2566533543
Side View
Table 61.0%CrownGirdle: MED-VTKPavilionCulet: 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: $8,421 AUD|Low: $3,726 AUD|High: $8,606 AUD|Avg: $5,249 AUD|-2.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 7$3,726 AUD
Retailer 6$4,305 AUD
Retailer 9$4,554 AUD
Retailer 8$4,555 AUD
Retailer 3$4,833 AUD
Retailer 5$5,116 AUD
Retailer 4$5,758 AUD
Retailer 2$7,006 AUD
MOH London$8,421 AUD

18 data points across 9 retailers

9 retailers$3,726 AUD to $8,421 AUD

A
Cheapest Retailer
-
$3,726 AUD
A
Retailer 2
-
$4,305 AUD
View
Price last confirmed 3 days ago
B+
Retailer 3
-
$4,554 AUD
View
B+
Retailer 4
-
$4,555 AUD
View
B+
Retailer 5
-
$4,833 AUD
View
B+
Retailer 6
-
$5,116 AUD
View
B+
Retailer 7
-
$5,758 AUD
View
B
Retailer 8
-
$7,006 AUD
View
Most Expensive
B
MOH London
82A89C3B9 · Nov 1
$8,421 AUD
£4,556 GBP
View
8 more retailers have this diamond
Prices start from $3,726 AUDSave up to $4,695 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
$3,726 AUD