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Cushion|Natural|GIA

1.20ct G SI1 Cushion Natural Diamond

EX • G/SI1 • GIA 5231876887

Certificate GIA 5231876887

Diamond specifications and retailer prices

From $4,659 AUD
As of November 4, 2026
Save $2,738 AUD (37%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $10,147 AUD at MOH London · As of October 26, 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 G 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 5231876887. Listed at 19 retailers as of November 4, 2026, with a 59% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
G
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Pavilion angle37.54°
OriginNatural
Grading LabGIA
CertificateGIA 5231876887
Dimensions7.01 × 5.65 × 3.89 mm
L/W Ratio1.24
Top View
7.01 mm5.65 mm1.20 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 5231876887
Side View
Table 65.0%CrownGirdle: STK-VTKPavilion 37.54°Culet: NoneDepth 68.8%

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 4
Current: $10,147 AUD|Low: $4,644 AUD|High: $10,257 AUD|Avg: $6,431 AUD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 7, 2026
Retailer 9$4,665 AUD
Retailer 3$5,018 AUD
Retailer 6$5,156 AUD
Retailer 8$5,490 AUD
Retailer 2$6,153 AUD
Retailer 7$6,497 AUD
Retailer 4$6,755 AUD
Retailer 5$7,396 AUD
MOH London$10,147 AUD

46 data points across 9 retailers

19 retailers$4,659 AUD to $7,396 AUD

B+
Cheapest Retailer
-
$4,659 AUD
B+
Retailer 2
-
$4,665 AUD
View
B+
Retailer 3
-
$4,775 AUD
View
B+
Retailer 4
-
$4,873 AUD
View
B+
Retailer 5
-
$5,018 AUD
View
Final sale: no returns
B
Retailer 6
-
$5,156 AUD
View
B+
Retailer 7
-
$5,254 AUD
View
B+
Retailer 8
-
$5,485 AUD
View
Retailer 9
-
$5,490 AUD
View
Price last confirmed 9 days ago
B
Retailer 10
-
$5,763 AUD
View
B
Retailer 11
-
$6,098 AUD
View
B
Retailer 12
-
$6,098 AUD
View
B
Retailer 13
-
$6,153 AUD
View
B
Retailer 14
-
$6,302 AUD
View
Retailer 15
-
$6,497 AUD
View
Price last confirmed 34 days ago
B
Retailer 16
-
$6,755 AUD
View
Retailer 17
-
$6,856 AUD
View
Price last confirmed 15 days ago
B
Retailer 18
-
$7,396 AUD
View
Most Expensive
MOH London
054AE1C01 · Oct 26
$10,147 AUD
£5,490 GBP
View
Price last confirmed 11 days ago
18 more retailers have this diamond
Prices start from $4,659 AUDSave up to $2,738 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+
1.20ct Cushion
$4,659 AUD