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Round|Natural|GIA

1.23ct I SI2 Round Natural Diamond

EX • I/SI2 • GIA 2564026489

Certificate GIA 2564026489

Diamond specifications and retailer prices

From $2,396 CAD
HK$13,400 HKD
As of October 30, 2026
Save $1,066 CAD (31%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $3,462 CAD at Michael Trio · As of October 27, 2026
View at Michael Trio

About this 1.23ct natural round diamond

This 1.23ct natural round sits in the classic one-carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2564026489. Listed at 6 retailers as of October 27, 2026, with prices from $2,396 to $3,462, a $1,066 spread on the same certified stone. Michael Trio lists it at $3,462. 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
I
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
Crown angle33.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 2564026489
Dimensions6.89 × 6.91 × 4.18 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Crystal
Top View
6.89 mm6.91 mm1.23 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 2564026489
Side View
Table 59.0%Crown 33.5°Girdle: Slightly ThickPavilion 40.8°Culet: NoneDepth 60.6%

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: Oct 30
Current: $3,462 CAD|Low: $2,396 CAD|High: $3,606 CAD|Avg: $3,169 CAD|-4.0%
Michael Trio
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 29, 2026
Retailer 2$2,396 CAD
Retailer 6$2,954 CAD
Retailer 4$3,026 CAD
Retailer 3$3,073 CAD
Retailer 7$3,280 CAD
Retailer 5$3,353 CAD
Michael Trio$3,462 CAD

16 data points across 7 retailers

6 retailers$2,396 CAD to $3,462 CAD

A
Cheapest Retailer
-
$2,396 CAD
HK$13,400 HKD
A
Retailer 2
-
$2,954 CAD
$2,115 USD
View
B+
Retailer 3
-
$3,026 CAD
$2,166 USD
View
Final sale: no returns
A
Retailer 4
-
$3,073 CAD
SGD 2,973 SGD
View
A
Retailer 5
-
$3,353 CAD
$2,400 USD
View
Most Expensive
B+
Michael Trio
2508674780 · Oct 27
$3,462 CAD
SGD 3,349 SGD
View
5 more retailers have this diamond
Prices start from $2,396 CADSave up to $1,066 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
$2,396 CAD