Round|Natural|GIA

4.25ct K SI1 Round Natural Diamond

EX • K/SI1

Diamond specifications and retailer prices

From $48,479 CAD
As of November 4, 2026
Save $11,931 CAD (20%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $62,378 CAD at Aurelinne · As of October 23, 2026
View at Aurelinne

About this 4.25ct natural round diamond

This 4.25ct natural round sits in the three to five carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA. Listed at 15 retailers as of November 4, 2026, with a relatively tight 25% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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

4.25
Carat
K
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
Dimensions10.31 × 10.40 × 6.40 mm
L/W Ratio1.01
Top View
10.31 mm10.40 mm4.25 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA
Side View
Table 60.0%CrownGirdle: Slightly ThickPavilionCulet: NoneDepth 61.9%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $60,237 CAD|Low: $48,479 CAD|High: $62,494 CAD|Avg: $58,107 CAD|-3.4%
Aurelinne
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 5$48,479 CAD
Retailer 8$53,805 CAD
Retailer 10$55,446 CAD
Retailer 4$55,655 CAD
Retailer 2$55,775 CAD
Retailer 3$55,775 CAD
Retailer 6$58,006 CAD
Retailer 7$58,173 CAD
Aurelinne$60,237 CAD
Retailer 9$60,410 CAD

19 data points across 10 retailers

15 retailers$48,479 CAD to $60,410 CAD

A
Cheapest Retailer
-
$48,479 CAD
Retailer 2
-
$50,181 CAD
View
Price last confirmed 14 days ago
B+
Retailer 3
-
$53,805 CAD
View
Retailer 4
-
$55,446 CAD
View
Price last confirmed 8 days ago
B+
Retailer 5
-
$55,655 CAD
View
B+
Retailer 6
-
$55,775 CAD
View
B+
Retailer 7
-
$55,775 CAD
View
Retailer 8
-
$57,758 CAD
View
Price last confirmed 15 days ago
B+
Retailer 9
-
$58,006 CAD
View
B+
Retailer 10
-
$58,173 CAD
View
Retailer 11
-
$60,068 CAD
View
Price last confirmed 15 days ago
Retailer 12
-
$60,178 CAD
View
Price last confirmed 11 days ago
B+
Retailer 13
-
$60,237 CAD
View
B+
Retailer 14
-
$60,410 CAD
View
Most Expensive
Aurelinne
ef843a20-8ae8-4ab8-b564-142ec00080e9 · Oct 23
$62,378 CAD
$44,664 USD
View
Price last confirmed 14 days ago
14 more retailers have this diamond
Prices start from $48,479 CADSave up to $11,931 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
4.25ct Round
$48,479 CAD