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Round|Natural|GIA

1.02ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 1428908142

Certificate GIA 1428908142

Diamond specifications and retailer prices

From $3,556 CAD
As of November 6, 2026
Save $5,951 CAD (63%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $9,507 CAD at Diamond Quarter · As of November 5, 2026
View at Diamond Quarter

About this 1.02ct natural round diamond

This 1.02ct natural round sits in the classic one-carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1428908142. Listed at 19 retailers as of November 5, 2026, with prices from $3,556 to $9,507, a $5,951 spread on the same certified stone. Diamond Quarter lists it at $9,507. 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

1.02
Carat
H
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 1428908142
Dimensions6.44 × 6.40 × 4.00 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Crystal, Cloud, Knot
Top View
6.44 mm6.40 mm1.02 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1428908142
Side View
Table 58.0%Crown 34.5°Girdle: THN-STKPavilion 41.4°Culet: NoneDepth 62.3%

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: $3,556 CAD|Low: $3,556 CAD|High: $8,325 CAD|Avg: $5,260 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 1$3,556 CAD
Retailer 8$3,610 CAD
Retailer 9$4,540 CAD
Retailer 2$4,707 CAD
Retailer 3$5,028 CAD
Retailer 4$5,058 CAD
Retailer 7$5,236 CAD
Retailer 5$6,004 CAD
Retailer 6$8,205 CAD

29 data points across 9 retailers

19 retailers$3,556 CAD to $9,507 CAD

A
Cheapest Retailer
-
$3,556 CAD
B+
Retailer 2
-
$3,610 CAD
View
B+
Retailer 3
-
$4,285 CAD
View
B
Retailer 4
-
$4,540 CAD
View
Final sale: no returns
Retailer 5
-
$4,599 CAD
View
Price last confirmed 109 days ago
B+
Retailer 6
-
$4,707 CAD
View
B+
Retailer 7
-
$4,734 CAD
View
B+
Retailer 8
-
$4,919 CAD
View
B
Retailer 9
-
$5,028 CAD
View
B+
Retailer 10
-
$5,058 CAD
View
B
Retailer 11
-
$5,121 CAD
View
B+
Retailer 12
-
$5,236 CAD
View
Retailer 13
-
$5,254 CAD
View
Price last confirmed 29 days ago
B
Retailer 14
-
$5,676 CAD
View
B
Retailer 15
-
$6,004 CAD
View
B
Retailer 16
-
$6,381 CAD
View
B
Retailer 17
-
$8,205 CAD
View
B
Retailer 18
-
$8,570 CAD
View
Most Expensive
B
Diamond Quarter
1.02SI1H1442F009N · Nov 5
$9,507 CAD
£5,360 GBP
View
18 more retailers have this diamond
Prices start from $3,556 CADSave up to $5,951 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
1.02ct Round
$3,556 CAD