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Round|Natural|GIA

1.23ct M SI1 Round Natural Diamond

EX • M/SI1 • GIA 6365160641

Certificate GIA 6365160641

Diamond specifications and retailer prices

From $2,038 CAD
As of November 1, 2026
Save $1,698 CAD (45%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $6,698 CAD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.23ct natural round diamond

This 1.23ct natural round sits in the classic one-carat band, graded M colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6365160641. Listed at 13 retailers as of November 1, 2026, with a 83% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.23
Carat
M
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6365160641
Dimensions6.82 × 6.78 × 4.26 mm
L/W Ratio1.01
Top View
6.82 mm6.78 mm1.23 ctM / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6365160641
Side View
Table 58.0%CrownGirdlePavilionCulet: NoneDepth 62.6%

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 1
Current: $6,698 CAD|Low: $1,894 CAD|High: $6,698 CAD|Avg: $3,120 CAD|+5.1%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 2, 2026
Retailer 8$2,038 CAD
Retailer 14$2,480 CAD
Retailer 11$2,654 CAD
Retailer 7$2,714 CAD
Retailer 5$2,746 CAD
Retailer 13$2,746 CAD
Retailer 3$2,800 CAD
Retailer 4$2,873 CAD
Retailer 12$2,938 CAD
Retailer 10$3,169 CAD
Retailer 9$3,374 CAD
Retailer 2$3,736 CAD
Retailer 6$4,222 CAD
NZ Jewellers$6,698 CAD

26 data points across 14 retailers

13 retailers$2,038 CAD to $3,736 CAD

A
Cheapest Retailer
-
$2,038 CAD
B+
Retailer 2
-
$2,480 CAD
View
B+
Retailer 3
-
$2,654 CAD
View
B+
Retailer 4
-
$2,714 CAD
View
B+
Retailer 5
-
$2,746 CAD
View
Retailer 6
-
$2,746 CAD
View
Price last confirmed 8 days ago
B
Retailer 7
-
$2,800 CAD
View
Retailer 8
-
$2,873 CAD
View
Price last confirmed 8 days ago
B
Retailer 9
-
$2,938 CAD
View
B
Retailer 10
-
$3,169 CAD
View
B
Retailer 11
-
$3,374 CAD
View
B
Retailer 12
-
$3,736 CAD
View
Most Expensive
NZ Jewellers
922048f7-14f0-4f67-93c2-cd5dfe544109 · Oct 30
$6,698 CAD
$4,796 USD
View
Price last confirmed 7 days ago
12 more retailers have this diamond
Prices start from $2,038 CADSave up to $1,698 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
1.23ct Round
$2,038 CAD