Round|Natural|GIA

1.00ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 6402352938

Certificate GIA 6402352938

Diamond specifications and retailer prices

From $2,834 CAD
As of November 4, 2026
18 retailers carry this diamond
Most expensive: $6,377 CAD at NZ Jewellers · As of October 23, 2026
View at NZ Jewellers

About this 1ct natural round diamond

This 1ct 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 6402352938. Listed at 18 retailers as of November 4, 2026. 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

1.00
Carat
K
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle35°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 6402352938
Dimensions6.42 × 6.45 × 3.89 mm
L/W Ratio1.00
Top View
6.42 mm6.45 mm1.00 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6402352938
Side View
Table 59.0%Crown 35°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 60.4%

Caratlytics Score

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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: Nov 4
Current: $2,937 CAD|Low: $2,656 CAD|High: $5,408 CAD|Avg: $3,316 CAD|-1.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 24, 2026
Retailer 2$2,656 CAD
Retailer 11$2,764 CAD
Retailer 3$2,814 CAD
Retailer 5$2,830 CAD
Retailer 9$2,834 CAD
Retailer 6$2,855 CAD
Retailer 1$2,937 CAD
Retailer 10$3,342 CAD
Retailer 7$3,680 CAD
Retailer 4$3,786 CAD
Retailer 8$5,371 CAD

32 data points across 11 retailers

18 retailers

Retailer 1
-
$2,497 CAD
Price last confirmed 14 days ago
Retailer 2
-
$2,656 CAD
View
Price last confirmed 14 days ago
Retailer 3
-
$2,764 CAD
View
Price last confirmed 39 days ago
Retailer 4
-
$2,764 CAD
View
Price last confirmed 21 days ago
Retailer 5
-
$2,814 CAD
View
Price last confirmed 14 days ago
Retailer 6
-
$2,830 CAD
View
Price last confirmed 14 days ago
B+
Retailer 7
-
$2,834 CAD
View
Retailer 8
-
$2,849 CAD
View
Price last confirmed 19 days ago
Retailer 9
-
$2,855 CAD
View
Price last confirmed 15 days ago
Retailer 10
-
$2,891 CAD
View
Price last confirmed 38 days ago
Retailer 11
-
$3,188 CAD
View
Price last confirmed 38 days ago
Retailer 12
-
$3,188 CAD
View
Price last confirmed 14 days ago
Retailer 13
-
$3,342 CAD
View
Price last confirmed 16 days ago
Retailer 14
-
$3,680 CAD
View
Price last confirmed 15 days ago
Retailer 15
-
$3,786 CAD
View
Price last confirmed 13 days ago
Retailer 16
-
$5,371 CAD
View
Price last confirmed 16 days ago
Retailer 17
-
$6,377 CAD
View
Price last confirmed 39 days ago
Most Expensive
NZ Jewellers
03d9b590-2778-471e-9db8-df4130d44ffd · Oct 23
$6,377 CAD
$4,566 USD
View
Price last confirmed 13 days ago
17 more retailers have this diamond
Prices start from $2,834 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+
1.00ct Round
$2,834 CAD