Round|Natural|GIA

1.05ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 6505241872

Certificate GIA 6505241872

Diamond specifications and retailer prices

From $2,500 CAD
As of November 6, 2026
Save $4,437 CAD (64%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $6,937 CAD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.05ct natural round diamond

This 1.05ct 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 6505241872. Listed at 13 retailers as of November 5, 2026, with prices from $2,500 to $6,937, a $4,437 spread on the same certified stone. NZ Jewellers lists it at $6,937. 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

1.05
Carat
H
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 6505241872
Dimensions6.45 × 6.51 × 4.06 mm
L/W Ratio1.01
Girdle conditionSlightly Thick
Top View
6.45 mm6.51 mm1.05 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6505241872
Side View
Table 57.0%Crown 35.5°Girdle: MediumPavilion 41.2°Culet: NoneDepth 62.6%

Caratlytics Score

How it works →
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 6
Current: $6,937 CAD|Low: $2,500 CAD|High: $7,253 CAD|Avg: $4,061 CAD|-4.4%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 2$2,500 CAD
Retailer 11$2,656 CAD
Retailer 9$2,997 CAD
Retailer 3$3,135 CAD
Retailer 4$3,174 CAD
Retailer 7$3,489 CAD
Retailer 5$3,512 CAD
Retailer 6$3,910 CAD
Retailer 8$4,050 CAD
Retailer 10$5,797 CAD
NZ Jewellers$6,937 CAD

27 data points across 11 retailers

13 retailers$2,500 CAD to $6,937 CAD

A
Cheapest Retailer
-
$2,500 CAD
A
Retailer 2
-
$2,656 CAD
View
Final sale: no returns
A
Retailer 3
-
$2,997 CAD
View
A
Retailer 4
-
$3,135 CAD
View
A
Retailer 5
-
$3,174 CAD
View
A
Retailer 6
-
$3,236 CAD
View
A
Retailer 7
-
$3,489 CAD
View
A
Retailer 8
-
$3,512 CAD
View
B+
Retailer 9
-
$3,910 CAD
View
B+
Retailer 10
-
$4,050 CAD
View
Retailer 11
-
$4,223 CAD
View
Price last confirmed 30 days ago
B
Retailer 12
-
$5,797 CAD
View
Most Expensive
B
NZ Jewellers
bd109b5e-5f66-43ef-8a97-8f8c565ab457 · Nov 5
$6,937 CAD
$4,967 USD
View
12 more retailers have this diamond
Prices start from $2,500 CADSave up to $4,437 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
1.05ct Round
$2,500 CAD