Round|Natural|GIA

1.23ct E SI1 Round Natural Diamond

EX • E/SI1 • GIA 5506549779

Certificate GIA 5506549779

Diamond specifications and retailer prices

From $6,510 CAD
As of November 4, 2026
Save $5,976 CAD (48%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $12,486 CAD at NZ Jewellers · As of November 5, 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 E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 5506549779. Listed at 16 retailers as of November 4, 2026, with prices from $6,510 to $12,486, a $5,976 spread on the same certified stone. NZ Jewellers lists it at $12,486. 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
E
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle35.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 5506549779
Dimensions6.86 × 6.80 × 4.31 mm
L/W Ratio1.01
Top View
6.86 mm6.80 mm1.23 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 5506549779
Side View
Table 56.0%Crown 35.5°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 63.0%

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: $7,935 CAD|Low: $6,510 CAD|High: $11,743 CAD|Avg: $7,991 CAD|+1.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 5, 2026
Retailer 6$6,510 CAD
Retailer 7$6,891 CAD
Retailer 3$6,966 CAD
Retailer 4$7,165 CAD
Retailer 9$7,465 CAD
Retailer 8$7,525 CAD
Retailer 1$7,935 CAD
Retailer 2$9,107 CAD
Retailer 5$11,572 CAD

38 data points across 9 retailers

16 retailers$6,510 CAD to $12,486 CAD

B+
Cheapest Retailer
-
$6,510 CAD
B+
Retailer 2
-
$6,891 CAD
View
Final sale: no returns
B+
Retailer 3
-
$6,966 CAD
View
B+
Retailer 4
-
$6,997 CAD
View
B+
Retailer 5
-
$7,165 CAD
View
B+
Retailer 6
-
$7,465 CAD
View
Retailer 7
-
$7,465 CAD
View
Price last confirmed 8 days ago
B+
Retailer 8
-
$7,465 CAD
View
Retailer 9
-
$7,525 CAD
View
Price last confirmed 28 days ago
B+
Retailer 10
-
$7,679 CAD
View
B+
Retailer 11
-
$7,935 CAD
View
B
Retailer 12
-
$8,614 CAD
View
B
Retailer 13
-
$9,107 CAD
View
B
Retailer 14
-
$11,572 CAD
View
B
Retailer 15
-
$12,340 CAD
View
Most Expensive
B
NZ Jewellers
1b6d518d-5cca-4551-b172-f30750849a94 · Nov 5
$12,486 CAD
$8,940 USD
View
15 more retailers have this diamond
Prices start from $6,510 CADSave up to $5,976 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
$6,510 CAD