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1.23ct G SI1 Round Natural Diamond

EX • G/SI1 • GIA 2557493818

Certificate GIA 2557493818

Diamond specifications and retailer prices

From $5,866 CAD
As of November 4, 2026
Save $4,603 CAD (44%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $10,468 CAD at Wholesale Diamonds Direct · As of November 4, 2026
View at Wholesale Diamonds Direct

About this 1.23ct natural round diamond

This 1.23ct natural round sits in the classic one-carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2557493818. Listed at 12 retailers as of November 4, 2026, with prices from $5,866 to $10,468, a $4,603 spread on the same certified stone. Wholesale Diamonds Direct lists it at $10,468. 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
G
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 2557493818
Dimensions6.81 × 6.86 × 4.26 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Cloud, Twinning Wisp, Crystal, Feather
Top View
6.81 mm6.86 mm1.23 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2557493818
Side View
Table 58.0%Crown 36°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $7,290 CAD|Low: $5,866 CAD|High: $10,468 CAD|Avg: $7,593 CAD|+1.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Wholesale Diamonds Direct
November 6, 2026
Retailer 7$5,866 CAD
Retailer 5$6,341 CAD
Retailer 6$6,915 CAD
Retailer 4$7,118 CAD
Retailer 1$7,290 CAD
Retailer 3$7,651 CAD
Retailer 2$9,057 CAD
Wholesale Diamonds Direct$10,468 CAD

43 data points across 8 retailers

12 retailers$5,866 CAD to $10,468 CAD

B+
Cheapest Retailer
-
$5,866 CAD
B+
Retailer 2
-
$6,341 CAD
View
B+
Retailer 3
-
$6,915 CAD
View
B
Retailer 4
-
$7,088 CAD
View
B
Retailer 5
-
$7,118 CAD
View
B+
Retailer 6
-
$7,290 CAD
View
B
Retailer 7
-
$7,542 CAD
View
B
Retailer 8
-
$7,542 CAD
View
B
Retailer 9
-
$7,651 CAD
View
B
Retailer 10
-
$7,793 CAD
View
B
Retailer 11
-
$9,057 CAD
View
Most Expensive
B
Wholesale Diamonds Direct
252731742 · Nov 4
$10,468 CAD
$7,496 USD
View
11 more retailers have this diamond
Prices start from $5,866 CADSave up to $4,603 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+
1.23ct Round
$5,866 CAD