CaratHunter
Plans
Cushion|Natural|GIA

1.20ct K SI1 Cushion Natural Diamond

EX • K/SI1 • GIA 6422491450

Certificate GIA 6422491450

Diamond specifications and retailer prices

From $2,746 CAD
As of November 6, 2026
Save $1,854 CAD (40%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $4,600 CAD at Frank Darling · As of November 6, 2026
View at Frank Darling

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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6422491450. Listed at 6 retailers as of November 6, 2026, with prices from $2,746 to $4,600, a $1,854 spread on the same certified stone. Frank Darling lists it at $4,600. 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
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 6422491450
Dimensions5.98 × 5.88 × 4.16 mm
L/W Ratio1.02
Top View
5.98 mm5.88 mm1.20 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceStrong
CertificateGIA 6422491450
Side View
Table 66.0%CrownGirdle: STH-ETHPavilionCulet: NoneDepth 70.7%

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: $4,600 CAD|Low: $2,746 CAD|High: $4,600 CAD|Avg: $3,399 CAD
Frank Darling
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 4$2,746 CAD
Retailer 5$2,775 CAD
Retailer 6$2,785 CAD
Retailer 3$2,907 CAD
Retailer 2$4,076 CAD
Frank Darling$4,600 CAD

33 data points across 6 retailers

6 retailers$2,746 CAD to $4,600 CAD

B+
Cheapest Retailer
-
$2,746 CAD
B+
Retailer 2
-
$2,775 CAD
View
B+
Retailer 3
-
$2,785 CAD
View
B+
Retailer 4
-
$2,907 CAD
View
B
Retailer 5
-
$4,076 CAD
View
Most Expensive
B
Frank Darling
CU2547MR · Nov 6
$4,600 CAD
$3,270 USD
View
5 more retailers have this diamond
Prices start from $2,746 CADSave up to $1,854 CAD

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
$2,746 CAD