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Marquise|Natural|GIA

1.21ct D SI1 Marquise Natural Diamond

GD • D/SI1 • GIA 5546223817

Certificate GIA 5546223817

Diamond specifications and retailer prices

From $8,644 CAD
As of November 4, 2026
Save $6,046 CAD (41%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $14,689 CAD at MOH London · As of November 2, 2026
View at MOH London

About this 1.21ct natural marquise diamond

This 1.21ct natural marquise sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 5546223817. Listed at 15 retailers as of November 2, 2026, with prices from $8,644 to $14,689, a $6,046 spread on the same certified stone. MOH London lists it at $14,689. 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

1.21
Carat
D
Color
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.44°
Pavilion angle39.93°
OriginNatural
Grading LabGIA
CertificateGIA 5546223817
Dimensions9.98 × 5.47 × 3.59 mm
L/W Ratio1.82
Top View
9.98 mm5.47 mm1.21 ctD / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5546223817
Side View
Table 60.0%Crown 43.44°Girdle: THK-VTKPavilion 39.93°Culet: NoneDepth 65.5%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $14,689 CAD|Low: $9,428 CAD|High: $14,866 CAD|Avg: $11,319 CAD|-0.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 8$9,428 CAD
Retailer 2$9,672 CAD
Retailer 4$9,700 CAD
Retailer 7$9,915 CAD
Retailer 3$11,099 CAD
Retailer 5$12,464 CAD
Retailer 6$13,057 CAD
MOH London$14,689 CAD

34 data points across 8 retailers

15 retailers$8,644 CAD to $14,689 CAD

B
Cheapest Retailer
-
$8,644 CAD
B
Retailer 2
-
$8,845 CAD
View
B
Retailer 3
-
$8,909 CAD
View
B
Retailer 4
-
$9,428 CAD
View
Final sale: no returns
Retailer 5
-
$9,430 CAD
View
Price last confirmed 8 days ago
B
Retailer 6
-
$9,445 CAD
View
B
Retailer 7
-
$9,672 CAD
View
B
Retailer 8
-
$9,700 CAD
View
Retailer 9
-
$9,915 CAD
View
Price last confirmed 15 days ago
B
Retailer 10
-
$10,443 CAD
View
B
Retailer 11
-
$11,099 CAD
View
B
Retailer 12
-
$11,787 CAD
View
B
Retailer 13
-
$12,464 CAD
View
Retailer 14
-
$13,057 CAD
View
Price last confirmed 9 days ago
Most Expensive
B
MOH London
55942083B · Nov 2
$14,689 CAD
£8,223 GBP
View
14 more retailers have this diamond
Prices start from $8,644 CADSave up to $6,046 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
1.21ct Marquise
$8,644 CAD