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1.23ct G SI1 Round Natural Diamond

EX • G/SI1 • GIA 1538212314

Certificate GIA 1538212314

Diamond specifications and retailer prices

From $5,377 CAD
As of November 1, 2026
Save $3,637 CAD (40%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $9,013 CAD at Cape Diamonds · As of October 31, 2026
View at Cape Diamonds

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 1538212314. Listed at 14 retailers as of October 31, 2026, with prices from $5,377 to $9,013, a $3,637 spread on the same certified stone. Cape Diamonds lists it at $9,013. 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 angle32°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 1538212314
Dimensions6.92 × 6.87 × 4.16 mm
L/W Ratio1.01
Star length45%
Lower girdle75%
Key to symbols
Crystal, Cloud, Needle
Top View
6.92 mm6.87 mm1.23 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1538212314
Side View
Table 59.0%Crown 32°Girdle: Slightly ThickPavilion 40.8°Culet: NoneDepth 60.3%

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 1
Current: $9,013 CAD|Low: $5,110 CAD|High: $9,013 CAD|Avg: $6,996 CAD|+2.2%
Cape Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 5, 2026
Retailer 5$5,377 CAD
Retailer 6$6,132 CAD
Retailer 8$6,271 CAD
Retailer 9$6,834 CAD
Retailer 7$7,030 CAD
Retailer 3$7,272 CAD
Retailer 2$7,556 CAD
Retailer 4$8,061 CAD
Cape Diamonds$9,013 CAD

41 data points across 9 retailers

14 retailers$5,377 CAD to $9,013 CAD

B+
Cheapest Retailer
-
$5,377 CAD
B+
Retailer 2
-
$5,793 CAD
View
B+
Retailer 3
-
$6,132 CAD
View
Final sale: no returns
B+
Retailer 4
-
$6,271 CAD
View
B+
Retailer 5
-
$6,834 CAD
View
B
Retailer 6
-
$7,030 CAD
View
B
Retailer 7
-
$7,272 CAD
View
B
Retailer 8
-
$7,458 CAD
View
B
Retailer 9
-
$7,458 CAD
View
B
Retailer 10
-
$7,533 CAD
View
B
Retailer 11
-
$7,556 CAD
View
B
Retailer 12
-
$7,709 CAD
View
B
Retailer 13
-
$8,061 CAD
View
Most Expensive
B
Cape Diamonds
cert_1538212314 · Oct 31
$9,013 CAD
ZAR 104,263 ZAR
View
13 more retailers have this diamond
Prices start from $5,377 CADSave up to $3,637 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
$5,377 CAD