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Cushion|Natural|GIA

1.20ct D SI1 Cushion Natural Diamond

EX • D/SI1 • GIA 1559160548

Certificate GIA 1559160548

Diamond specifications and retailer prices

From $4,626 CAD
As of November 6, 2026
Save $5,010 CAD (52%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $9,905 CAD at Queensmith · As of October 28, 2026
View at Queensmith

About this 1.2ct natural cushion diamond

This 1.2ct natural cushion sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1559160548. Listed at 20 retailers as of November 4, 2026, with a 108% 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
D
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1559160548
Dimensions8.04 × 5.38 × 3.63 mm
L/W Ratio1.49
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Cavity, Pinpoint
Top View
8.04 mm5.38 mm1.20 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1559160548
Side View
Table 65.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 67.5%

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: $9,905 CAD|Low: $4,591 CAD|High: $10,178 CAD|Avg: $6,568 CAD|-2.3%
Queensmith
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
Retailer 15
Retailer 16
November 6, 2026
Retailer 4$4,626 CAD
Retailer 2$4,798 CAD
Retailer 7$5,292 CAD
Retailer 6$5,463 CAD
Retailer 3$5,601 CAD
Retailer 13$5,652 CAD
Retailer 8$5,836 CAD
Retailer 9$5,885 CAD
Retailer 5$6,130 CAD
Retailer 11$6,145 CAD
Retailer 15$6,276 CAD
Retailer 16$6,449 CAD
Retailer 10$6,828 CAD
Retailer 12$7,406 CAD
Retailer 14$9,637 CAD
Queensmith$9,905 CAD

22 data points across 16 retailers

20 retailers$4,626 CAD to $9,637 CAD

B+
Cheapest Retailer
-
$4,626 CAD
B+
Retailer 2
-
$4,798 CAD
View
B+
Retailer 3
-
$5,292 CAD
View
B+
Retailer 4
-
$5,463 CAD
View
B+
Retailer 5
-
$5,601 CAD
View
Final sale: no returns
B+
Retailer 6
-
$5,652 CAD
View
B+
Retailer 7
-
$5,836 CAD
View
B+
Retailer 8
-
$5,843 CAD
View
B+
Retailer 9
-
$5,844 CAD
View
B+
Retailer 10
-
$5,885 CAD
View
Retailer 11
-
$6,130 CAD
View
Price last confirmed 8 days ago
B+
Retailer 12
-
$6,145 CAD
View
B
Retailer 13
-
$6,251 CAD
View
B+
Retailer 14
-
$6,276 CAD
View
B+
Retailer 15
-
$6,449 CAD
View
Retailer 16
-
$6,466 CAD
View
Price last confirmed 28 days ago
B+
Retailer 17
-
$6,828 CAD
View
B
Retailer 18
-
$7,406 CAD
View
B
Retailer 19
-
$9,637 CAD
View
Most Expensive
Queensmith
1559160548 · Oct 28
$9,905 CAD
£5,545 GBP
View
Price last confirmed 9 days ago
19 more retailers have this diamond
Prices start from $4,626 CADSave up to $5,010 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
$4,626 CAD