CaratHunter
Plans
Heart|Natural|GIA

1.23ct F SI1 Heart Natural Diamond

GD • F/SI1 • GIA 2278523940

Certificate GIA 2278523940

Diamond specifications and retailer prices

From $3,321 CAD
As of November 6, 2026
Save $3,725 CAD (53%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $7,045 CAD at MOH London · As of November 4, 2026
View at MOH London

About this 1.23ct natural heart diamond

This 1.23ct natural heart sits in the classic one-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2278523940. Listed at 21 retailers as of November 4, 2026, with prices from $3,321 to $7,045, a $3,725 spread on the same certified stone. MOH London lists it at $7,045. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.23
Carat
F
Color
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2278523940
Dimensions6.44 × 6.04 × 4.10 mm
L/W Ratio1.07
Top View
6.44 mm6.04 mm1.23 ctF / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2278523940
Side View
Table 62.0%CrownGirdle: STK-ETKPavilionCulet: NoneDepth 67.8%

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 6
Current: $7,045 CAD|Low: $2,768 CAD|High: $8,035 CAD|Avg: $4,441 CAD|-12.2%
MOH London
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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
November 6, 2026
Retailer 17$3,321 CAD
Retailer 7$3,428 CAD
Retailer 3$3,441 CAD
Retailer 19$3,531 CAD
Retailer 20$3,612 CAD
Retailer 12$3,751 CAD
Retailer 18$3,763 CAD
Retailer 6$3,827 CAD
Retailer 10$3,877 CAD
Retailer 11$3,906 CAD
Retailer 16$4,152 CAD
Retailer 5$4,258 CAD
Retailer 14$4,472 CAD
Retailer 8$4,512 CAD
Retailer 13$4,632 CAD
Retailer 4$4,774 CAD
Retailer 15$5,155 CAD
Retailer 2$5,228 CAD
Retailer 9$6,089 CAD
MOH London$7,045 CAD

40 data points across 20 retailers

21 retailers$3,321 CAD to $7,045 CAD

B+
Cheapest Retailer
-
$3,321 CAD
B+
Retailer 2
-
$3,428 CAD
View
B+
Retailer 3
-
$3,441 CAD
View
B+
Retailer 4
-
$3,531 CAD
View
Final sale: no returns
B+
Retailer 5
-
$3,612 CAD
View
B+
Retailer 6
-
$3,751 CAD
View
B+
Retailer 7
-
$3,763 CAD
View
Retailer 8
-
$3,827 CAD
View
Price last confirmed 22 days ago
B+
Retailer 9
-
$3,877 CAD
View
Retailer 10
-
$3,906 CAD
View
Price last confirmed 23 days ago
B
Retailer 11
-
$4,152 CAD
View
B
Retailer 12
-
$4,258 CAD
View
B
Retailer 13
-
$4,472 CAD
View
B
Retailer 14
-
$4,505 CAD
View
Retailer 15
-
$4,512 CAD
View
Price last confirmed 31 days ago
B+
Retailer 16
-
$4,632 CAD
View
B
Retailer 17
-
$4,774 CAD
View
B
Retailer 18
-
$5,155 CAD
View
B
Retailer 19
-
$5,228 CAD
View
B
Retailer 20
-
$6,089 CAD
View
Most Expensive
B
MOH London
45AC09C87 · Nov 4
$7,045 CAD
£3,944 GBP
View
20 more retailers have this diamond
Prices start from $3,321 CADSave up to $3,725 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 Heart
$3,321 CAD