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Princess|Natural|GIA

1.21ct J SI1 Princess Natural Diamond

VG • J/SI1 • GIA 1399137455

Certificate GIA 1399137455

Diamond specifications and retailer prices

From $3,262 SGD
As of November 4, 2026
Save $3,760 SGD (54%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $7,022 SGD at MOH London · As of November 4, 2026
View at MOH London

About this 1.21ct natural princess diamond

This 1.21ct natural princess sits in the classic one-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1399137455. Listed at 5 retailers as of November 4, 2026, with prices from $3,262 to $7,022, a $3,760 spread on the same certified stone. MOH London lists it at $7,022. 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
J
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1399137455
Dimensions5.71 × 5.53 × 4.30 mm
L/W Ratio1.03
Culet sizeNone
Top View
5.71 mm5.53 mm1.21 ctJ / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 1399137455
Side View
Table 67.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 77.7%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 4
Current: $7,022 SGD|Low: $4,154 SGD|High: $7,126 SGD|Avg: $5,162 SGD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
November 6, 2026
Retailer 4$4,154 SGD
Retailer 3$4,398 SGD
Retailer 2$4,902 SGD
MOH London$7,022 SGD

38 data points across 4 retailers

5 retailers$3,262 SGD to $7,022 SGD

B
Cheapest Retailer
-
$3,262 SGD
B
Retailer 2
-
$4,154 SGD
View
B
Retailer 3
-
$4,398 SGD
View
B
Retailer 4
-
$4,902 SGD
View
Most Expensive
C
MOH London
05E85850E · Nov 4
$7,022 SGD
£4,314 GBP
View
4 more retailers have this diamond
Prices start from $3,262 SGDSave up to $3,760 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 Princess
$3,262 SGD