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Cushion|Natural|GIA

1.20ct K SI1 Cushion Natural Diamond

VG • K/SI1 • GIA 2151597618

Certificate GIA 2151597618

Diamond specifications and retailer prices

From $2,680 CAD
As of November 1, 2026
Save $1,532 CAD (36%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $4,212 CAD at 77 Diamonds · As of November 6, 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 SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 2151597618. Listed at 7 retailers as of November 1, 2026, with prices from $2,680 to $4,212, a $1,532 spread on the same certified stone. 77 Diamonds lists it at $4,212. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.20
Carat
K
Color
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishGood
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2151597618
Dimensions6.41 × 5.37 × 3.80 mm
L/W Ratio1.19
Top View
6.41 mm5.37 mm1.20 ctK / SI1
OriginNatural
CutVery Good
PolishGood
SymmetryExcellent
FluorescenceNone
CertificateGIA 2151597618
Side View
Table 60.0%CrownGirdle: ThickPavilionCulet: NoneDepth 70.8%

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 1
Current: $4,212 CAD|Low: $2,680 CAD|High: $4,284 CAD|Avg: $3,253 CAD|+0.8%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
November 6, 2026
Retailer 2$2,680 CAD
Retailer 4$2,748 CAD
Retailer 3$3,331 CAD
77 Diamonds$4,212 CAD

37 data points across 4 retailers

7 retailers$2,680 CAD to $4,212 CAD

B+
Cheapest Retailer
-
$2,680 CAD
B+
Retailer 2
-
$2,734 CAD
View
B+
Retailer 3
-
$2,748 CAD
View
B+
Retailer 4
-
$2,896 CAD
View
B
Retailer 5
-
$3,023 CAD
View
B
Retailer 6
-
$3,331 CAD
View
Most Expensive
B
77 Diamonds
CUSZ2DHKCKUQ · Nov 6
$4,212 CAD
£2,358 GBP
View
6 more retailers have this diamond
Prices start from $2,680 CADSave up to $1,532 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
$2,680 CAD