Heart|Natural|GIA

1.20ct I SI1 Heart Natural Diamond

EX • I/SI1 • GIA 1443376340

Certificate GIA 1443376340

Diamond specifications and retailer prices

From $3,763 CAD
As of November 5, 2026
Save $2,914 CAD (44%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $7,989 CAD at NZ Jewellers · As of September 30, 2026
View at NZ Jewellers

About this 1.2ct natural heart diamond

This 1.2ct natural heart sits in the classic one-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1443376340. Listed at 14 retailers as of November 4, 2026, with a 77% 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
I
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1443376340
Dimensions6.42 × 7.55 × 4.36 mm
L/W Ratio1.18
Culet sizeNone
Key to symbols
Crystal, Feather, Needle, Natural
Top View
6.42 mm7.55 mm1.20 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1443376340
Side View
Table 57.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 57.8%

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 5
Current: $6,677 CAD|Low: $3,224 CAD|High: $6,776 CAD|Avg: $4,204 CAD|-1.3%
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
November 4, 2026
Retailer 4$3,224 CAD
Retailer 2$3,422 CAD
Retailer 12$3,763 CAD
Retailer 15$3,822 CAD
Retailer 14$4,020 CAD
Retailer 8$4,044 CAD
Retailer 7$4,062 CAD
Retailer 3$4,107 CAD
Retailer 6$4,107 CAD
Retailer 5$4,248 CAD
Retailer 11$4,280 CAD
Retailer 13$4,467 CAD
Retailer 9$4,631 CAD
Retailer 10$4,638 CAD
Retailer 1$6,677 CAD

30 data points across 15 retailers

14 retailers$3,763 CAD to $6,677 CAD

Retailer 1
-
$3,422 CAD
Price last confirmed 17 days ago
B+
Retailer 2
-
$3,763 CAD
View
Retailer 3
-
$3,822 CAD
View
Price last confirmed 29 days ago
Retailer 4
-
$3,968 CAD
View
Price last confirmed 36 days ago
B
Retailer 5
-
$4,020 CAD
View
B+
Retailer 6
-
$4,044 CAD
View
B
Retailer 7
-
$4,062 CAD
View
Retailer 8
-
$4,280 CAD
View
Price last confirmed 30 days ago
Retailer 9
-
$4,410 CAD
View
Price last confirmed 28 days ago
B
Retailer 10
-
$4,467 CAD
View
B
Retailer 11
-
$4,631 CAD
View
Retailer 12
-
$4,638 CAD
View
Price last confirmed 20 days ago
B
Retailer 13
-
$6,677 CAD
View
Most Expensive
NZ Jewellers
bbd29a78-304e-44f7-8eb2-e3776e7f2961 · Sep 30
$7,989 CAD
$5,680 USD
View
Price last confirmed 37 days ago
13 more retailers have this diamond
Prices start from $3,763 CADSave up to $2,914 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 Heart
$3,763 CAD