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Cushion|Natural|GIA

1.20ct H SI2 Cushion Natural Diamond

ID • H/SI2 • GIA 3405785665

Certificate GIA 3405785665

Diamond specifications and retailer prices

From $1,732 AUD
As of November 6, 2026
Save $2,416 AUD (58%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $4,148 AUD at MOH London · As of November 4, 2026
View at MOH London

About this 1.2ct natural cushion diamond

This 1.2ct natural cushion sits in the classic one-carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 3405785665. Listed at 17 retailers as of November 4, 2026, with prices from $1,732 to $4,148, a $2,416 spread on the same certified stone. MOH London lists it at $4,148. 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

1.20
Carat
H
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 3405785665
Dimensions6.11 × 5.68 × 3.96 mm
L/W Ratio1.08
Top View
6.11 mm5.68 mm1.20 ctH / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 3405785665
Side View
Table 67.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 69.7%

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 6
Current: $4,148 AUD|Low: $1,732 AUD|High: $4,211 AUD|Avg: $2,568 AUD|-1.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 2$1,732 AUD
Retailer 8$1,732 AUD
Retailer 7$2,112 AUD
Retailer 10$2,190 AUD
Retailer 3$2,334 AUD
Retailer 9$2,398 AUD
Retailer 5$2,407 AUD
Retailer 6$2,634 AUD
Retailer 4$3,224 AUD
MOH London$4,148 AUD

28 data points across 10 retailers

17 retailers$1,732 AUD to $4,148 AUD

A
Cheapest Retailer
-
$1,732 AUD
A
Retailer 2
-
$1,732 AUD
View
A
Retailer 3
-
$2,112 AUD
View
A
Retailer 4
-
$2,190 AUD
View
Final sale: no returns
A
Retailer 5
-
$2,199 AUD
View
A
Retailer 6
-
$2,241 AUD
View
A
Retailer 7
-
$2,334 AUD
View
Retailer 8
-
$2,374 AUD
View
Price last confirmed 9 days ago
A
Retailer 9
-
$2,398 AUD
View
A
Retailer 10
-
$2,407 AUD
View
A
Retailer 11
-
$2,439 AUD
View
A
Retailer 12
-
$2,572 AUD
View
A
Retailer 13
-
$2,634 AUD
View
B+
Retailer 14
-
$3,224 AUD
View
B+
Retailer 15
-
$3,334 AUD
View
B+
Retailer 16
-
$3,653 AUD
View
Most Expensive
B+
MOH London
629784957 · Nov 4
$4,148 AUD
£2,244 GBP
View
16 more retailers have this diamond
Prices start from $1,732 AUDSave up to $2,416 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
1.20ct Cushion
$1,732 AUD