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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 $7,875 SGD
As of November 4, 2026
Save $5,509 SGD (41%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $13,384 SGD 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 $7,875 to $13,384, a $5,509 spread on the same certified stone. MOH London lists it at $13,384. 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
Colour
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: $13,384 SGD|Low: $8,591 SGD|High: $13,545 SGD|Avg: $10,313 SGD|-0.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 8$8,591 SGD
Retailer 2$8,812 SGD
Retailer 4$8,838 SGD
Retailer 7$9,034 SGD
Retailer 3$10,113 SGD
Retailer 5$11,356 SGD
Retailer 6$11,897 SGD
MOH London$13,384 SGD

34 data points across 8 retailers

15 retailers$7,875 SGD to $13,384 SGD

B
Cheapest Retailer
-
$7,875 SGD
B
Retailer 2
-
$8,059 SGD
View
B
Retailer 3
-
$8,118 SGD
View
B
Retailer 4
-
$8,591 SGD
View
Final sale: no returns
Retailer 5
-
$8,592 SGD
View
Price last confirmed 9 days ago
B
Retailer 6
-
$8,606 SGD
View
B
Retailer 7
-
$8,812 SGD
View
B
Retailer 8
-
$8,838 SGD
View
Retailer 9
-
$9,034 SGD
View
Price last confirmed 16 days ago
B
Retailer 10
-
$9,515 SGD
View
B
Retailer 11
-
$10,113 SGD
View
B
Retailer 12
-
$10,740 SGD
View
B
Retailer 13
-
$11,356 SGD
View
Retailer 14
-
$11,897 SGD
View
Price last confirmed 10 days ago
Most Expensive
B
MOH London
55942083B · Nov 2
$13,384 SGD
£8,223 GBP
View
14 more retailers have this diamond
Prices start from $7,875 SGDSave up to $5,509 SGD

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
$7,875 SGD