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Cushion|Natural|GIA

1.20ct K SI2 Cushion Natural Diamond

EX • K/SI2 • GIA 6411297026

Certificate GIA 6411297026

Diamond specifications and retailer prices

From $2,499 AUD
As of November 6, 2026
Save $1,276 AUD (34%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $3,775 AUD at 77 Diamonds · As of November 5, 2026
View at 77 Diamonds

About this 1.2ct natural cushion diamond

This 1.2ct natural cushion sits in the classic one-carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6411297026. Listed at 6 retailers as of November 5, 2026, with prices from $2,499 to $3,775, a $1,276 spread on the same certified stone. 77 Diamonds lists it at $3,775. 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
K
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6411297026
Dimensions5.87 × 5.77 × 3.97 mm
L/W Ratio1.02
Top View
5.87 mm5.77 mm1.20 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6411297026
Side View
Table 66.0%CrownGirdle: ThickPavilionCulet: NoneDepth 68.9%

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 6
Current: $3,775 AUD|Low: $2,499 AUD|High: $4,066 AUD|Avg: $3,135 AUD|-5.1%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 5, 2026
Retailer 5$2,499 AUD
Retailer 3$2,506 AUD
Retailer 4$2,534 AUD
Retailer 2$2,607 AUD
Retailer 6$2,749 AUD
77 Diamonds$3,775 AUD
Retailer 7$3,903 AUD
Retailer 8$4,066 AUD

36 data points across 8 retailers

6 retailers$2,499 AUD to $3,775 AUD

B+
Cheapest Retailer
-
$2,499 AUD
B+
Retailer 2
-
$2,506 AUD
View
B+
Retailer 3
-
$2,534 AUD
View
B+
Retailer 4
-
$2,607 AUD
View
Retailer 5
-
$2,749 AUD
View
Price last confirmed 61 days ago
Most Expensive
B
77 Diamonds
CUSMB74JGRSTF · Nov 5
$3,775 AUD
£2,043 GBP
View
5 more retailers have this diamond
Prices start from $2,499 AUDSave up to $1,276 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
$2,499 AUD