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Round|Natural|GIA

1.20ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 1328547279

Certificate GIA 1328547279

Diamond specifications and retailer prices

From $4,756 CAD
$3,405 USD
As of October 30, 2026
Save $5,849 CAD (55%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $10,605 CAD at NZ Jewellers · As of October 30, 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1328547279. Listed at 21 retailers as of October 30, 2026, with prices from $4,756 to $10,605, a $5,849 spread on the same certified stone. NZ Jewellers lists it at $10,605. 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
I
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 1328547279
Dimensions6.77 × 6.72 × 4.22 mm
L/W Ratio1.01
Culet sizeNone
Top View
6.77 mm6.72 mm1.20 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1328547279
Side View
Table 56.0%Crown 36.5°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $6,189 CAD|Low: $4,573 CAD|High: $10,192 CAD|Avg: $6,362 CAD|-1.4%
Retailer 1
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
October 30, 2026
Retailer 12$4,756 CAD
Retailer 14$4,756 CAD
Retailer 3$4,853 CAD
Retailer 4$5,089 CAD
Retailer 16$5,266 CAD
Retailer 15$5,503 CAD
Retailer 7$5,515 CAD
Retailer 5$6,146 CAD
Retailer 13$6,146 CAD
Retailer 1$6,189 CAD
Retailer 6$6,356 CAD
Retailer 8$6,374 CAD
Retailer 9$6,514 CAD
Retailer 2$6,885 CAD
Retailer 11$7,413 CAD
Retailer 10$9,747 CAD

40 data points across 16 retailers

21 retailers$4,756 CAD to $10,605 CAD

Retailer 1
-
$4,756 CAD
$3,405 USD
Price last confirmed 9 days ago
B+
Retailer 2
-
$4,756 CAD
$3,405 USD
View
B+
Retailer 3
-
$4,853 CAD
$3,474 USD
View
B+
Retailer 4
-
$5,050 CAD
A$5,561 AUD
View
B+
Retailer 5
-
$5,089 CAD
$3,643 USD
View
Final sale: no returns
B
Retailer 6
-
$5,266 CAD
$3,770 USD
View
B+
Retailer 7
-
$5,503 CAD
$3,939 USD
View
B+
Retailer 8
-
$5,515 CAD
$3,948 USD
View
B+
Retailer 9
-
$5,515 CAD
$3,948 USD
View
B+
Retailer 10
-
$5,515 CAD
$3,948 USD
View
B
Retailer 11
-
$6,146 CAD
$4,400 USD
View
B
Retailer 12
-
$6,146 CAD
$4,400 USD
View
B+
Retailer 13
-
$6,189 CAD
£3,488 GBP
View
B
Retailer 14
-
$6,356 CAD
$4,550 USD
View
B
Retailer 15
-
$6,363 CAD
$4,555 USD
View
Retailer 16
-
$6,374 CAD
A$7,020 AUD
View
Price last confirmed 20 days ago
B
Retailer 17
-
$6,514 CAD
€4,441 EUR
View
Retailer 18
-
$6,885 CAD
$4,929 USD
View
Price last confirmed 7 days ago
B
Retailer 19
-
$7,413 CAD
ZAR 85,728 ZAR
View
B
Retailer 20
-
$9,747 CAD
£5,494 GBP
View
Most Expensive
B
NZ Jewellers
ab56c08d-b5e9-43cc-b4c1-58d99346cb36 · Oct 30
$10,605 CAD
$7,592 USD
View
20 more retailers have this diamond
Prices start from $4,756 CADSave up to $5,849 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 Round
$4,756 CAD