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Round|Natural|GIA

1.20ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 1557218523

Certificate GIA 1557218523

Diamond specifications and retailer prices

From $2,753 CAD
As of November 6, 2026
Save $3,637 CAD (57%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $7,645 CAD at NZ Jewellers · As of October 3, 2026
View at NZ Jewellers

About this 1.2ct natural round diamond

This 1.2ct natural round sits in the classic one-carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1557218523. Listed at 20 retailers as of November 4, 2026, with a 132% 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
K
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 1557218523
Dimensions6.77 × 6.80 × 4.26 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Crystal, Cloud, Cavity, Indented Natural
Top View
6.77 mm6.80 mm1.20 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1557218523
Side View
Table 57.0%Crown 36°Girdle: THN-MEDPavilion 41°Culet: NoneDepth 62.8%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $2,852 CAD|Low: $2,753 CAD|High: $6,475 CAD|Avg: $4,036 CAD|-3.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 9$2,753 CAD
Retailer 1$2,852 CAD
Retailer 6$3,207 CAD
Retailer 2$3,498 CAD
Retailer 3$3,824 CAD
Retailer 4$3,846 CAD
Retailer 5$4,464 CAD
Retailer 8$4,553 CAD
Retailer 7$6,389 CAD

27 data points across 9 retailers

20 retailers$2,753 CAD to $6,389 CAD

A
Cheapest Retailer
-
$2,753 CAD
A
Retailer 2
-
$2,852 CAD
View
B+
Retailer 3
-
$3,207 CAD
View
B+
Retailer 4
-
$3,405 CAD
View
B+
Retailer 5
-
$3,408 CAD
View
B+
Retailer 6
-
$3,408 CAD
View
B+
Retailer 7
-
$3,498 CAD
View
Retailer 8
-
$3,656 CAD
View
Price last confirmed 39 days ago
Retailer 9
-
$3,656 CAD
View
Price last confirmed 25 days ago
B+
Retailer 10
-
$3,743 CAD
View
Retailer 11
-
$3,797 CAD
View
Price last confirmed 38 days ago
B
Retailer 12
-
$3,824 CAD
View
B+
Retailer 13
-
$3,846 CAD
View
B
Retailer 14
-
$3,853 CAD
View
Retailer 15
-
$4,219 CAD
View
Price last confirmed 38 days ago
B
Retailer 16
-
$4,464 CAD
View
B
Retailer 17
-
$4,553 CAD
View
B
Retailer 18
-
$6,389 CAD
View
Retailer 19
-
$7,645 CAD
View
Price last confirmed 39 days ago
Most Expensive
NZ Jewellers
91146f89-0f16-4898-9c1f-0dc4da1ab6cd · Oct 3
$7,645 CAD
$5,474 USD
View
Price last confirmed 34 days ago
19 more retailers have this diamond
Prices start from $2,753 CADSave up to $3,637 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.

A
1.20ct Round
$2,753 CAD