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Cushion|Natural|GIA

1.00ct G SI2 Cushion Natural Diamond

ID • G/SI2 • GIA 2426143213

Certificate GIA 2426143213

Diamond specifications and retailer prices

From $2,179 AUD
As of November 6, 2026
Save $2,982 AUD (58%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $5,161 AUD at MOH London · As of November 2, 2026
View at MOH London

About this 1ct natural cushion diamond

This 1ct natural cushion sits in the classic one-carat band, graded G 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 2426143213. Listed at 12 retailers as of November 2, 2026, with prices from $2,179 to $5,161, a $2,982 spread on the same certified stone. MOH London lists it at $5,161. 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

1.00
Carat
G
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2426143213
Dimensions5.60 × 5.31 × 3.80 mm
L/W Ratio1.05
Top View
5.60 mm5.31 mm1.00 ctG / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2426143213
Side View
Table 64.0%CrownGirdle: Ext. ThickPavilionCulet: NoneDepth 71.5%

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: $5,161 AUD|Low: $2,160 AUD|High: $5,188 AUD|Avg: $3,101 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
Retailer 13
Retailer 14
November 6, 2026
Retailer 10$2,179 AUD
Retailer 4$2,522 AUD
Retailer 12$2,717 AUD
Retailer 6$2,739 AUD
Retailer 13$2,823 AUD
Retailer 2$2,896 AUD
Retailer 11$2,946 AUD
Retailer 8$3,037 AUD
Retailer 3$3,085 AUD
Retailer 14$3,147 AUD
Retailer 9$3,199 AUD
Retailer 5$3,550 AUD
Retailer 7$3,999 AUD
MOH London$5,161 AUD

31 data points across 14 retailers

12 retailers$2,179 AUD to $5,161 AUD

A
Cheapest Retailer
-
$2,179 AUD
A
Retailer 2
-
$2,660 AUD
View
B+
Retailer 3
-
$2,717 AUD
View
Final sale: no returns
A
Retailer 4
-
$2,823 AUD
View
A
Retailer 5
-
$2,896 AUD
View
Retailer 6
-
$2,946 AUD
View
Price last confirmed 9 days ago
B+
Retailer 7
-
$3,037 AUD
View
B+
Retailer 8
-
$3,085 AUD
View
B+
Retailer 9
-
$3,147 AUD
View
B+
Retailer 10
-
$3,199 AUD
View
B+
Retailer 11
-
$3,999 AUD
View
Most Expensive
B
MOH London
723B0D537 · Nov 2
$5,161 AUD
£2,792 GBP
View
11 more retailers have this diamond
Prices start from $2,179 AUDSave up to $2,982 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
1.00ct Cushion
$2,179 AUD