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Round|Natural|GIA

1.00ct D SI1 Round Natural Diamond

EX • D/SI1 • GIA 5406598535

Certificate GIA 5406598535

Diamond specifications and retailer prices

From $3,431 CAD
As of October 31, 2026
Save $6,018 CAD (64%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $9,449 CAD at Diamond Quarter · As of November 5, 2026
View at Diamond Quarter

About this 1ct natural round diamond

This 1ct natural round sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 5406598535. Listed at 21 retailers as of October 31, 2026, with prices from $3,431 to $9,449, a $6,018 spread on the same certified stone. Diamond Quarter lists it at $9,449. 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
D
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceMedium
Crown angle32.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 5406598535
Dimensions6.54 × 6.52 × 3.88 mm
L/W Ratio1.00
Top View
6.54 mm6.52 mm1.00 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 5406598535
Side View
Table 58.0%Crown 32.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 59.4%

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: Oct 31
Current: $4,561 CAD|Low: $3,423 CAD|High: $8,345 CAD|Avg: $4,960 CAD|-1.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 12$3,431 CAD
Retailer 2$3,486 CAD
Retailer 10$4,302 CAD
Retailer 3$4,336 CAD
Retailer 4$4,399 CAD
Retailer 1$4,561 CAD
Retailer 5$4,841 CAD
Retailer 6$4,902 CAD
Retailer 11$5,004 CAD
Retailer 7$5,818 CAD
Retailer 8$7,949 CAD
Retailer 9$8,345 CAD

29 data points across 12 retailers

21 retailers$3,431 CAD to $9,449 CAD

A
Cheapest Retailer
-
$3,431 CAD
A
Retailer 2
-
$3,486 CAD
View
A
Retailer 3
-
$4,112 CAD
View
A
Retailer 4
-
$4,302 CAD
View
B+
Retailer 5
-
$4,336 CAD
View
B+
Retailer 6
-
$4,399 CAD
View
Final sale: no returns
B+
Retailer 7
-
$4,561 CAD
View
B+
Retailer 8
-
$4,767 CAD
View
Retailer 9
-
$4,767 CAD
View
Price last confirmed 8 days ago
B+
Retailer 10
-
$4,841 CAD
View
B+
Retailer 11
-
$4,902 CAD
View
B+
Retailer 12
-
$4,950 CAD
View
B+
Retailer 13
-
$5,004 CAD
View
Retailer 14
-
$5,110 CAD
View
Price last confirmed 33 days ago
B+
Retailer 15
-
$5,500 CAD
View
B+
Retailer 16
-
$5,818 CAD
View
B
Retailer 17
-
$7,949 CAD
View
B
Retailer 18
-
$8,304 CAD
View
B
Retailer 19
-
$8,345 CAD
View
B
Retailer 20
-
$8,817 CAD
View
Most Expensive
B
Diamond Quarter
1.0SI1D5435FF5FN · Nov 5
$9,449 CAD
£5,328 GBP
View
20 more retailers have this diamond
Prices start from $3,431 CADSave up to $6,018 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
1.00ct Round
$3,431 CAD