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Princess|Natural|GIA

1.21ct F SI1 Princess Natural Diamond

ID • F/SI1 • GIA 1563485171

Certificate GIA 1563485171

Diamond specifications and retailer prices

From $2,509 USD
As of November 2, 2026
Save $1,998 USD (44%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $4,507 USD at MOH London · As of November 2, 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 F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1563485171. Listed at 4 retailers as of November 2, 2026, with prices from $2,509 to $4,507, a $1,998 spread on the same certified stone. MOH London lists it at $4,507. 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

1.21
Carat
F
Color
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle41°
Pavilion angle39.45°
OriginNatural
Grading LabGIA
CertificateGIA 1563485171
Dimensions6.16 × 6.00 × 4.11 mm
L/W Ratio1.03
Girdle conditionSlightly Thick
Key to symbols
Feather, Crystal, Cloud, Needle
Top View
6.16 mm6.00 mm1.21 ctF / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1563485171
Side View
Table 78.0%Crown 41°Girdle: MED-POLPavilion 39.45°Culet: NoneDepth 68.5%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $4,507 USD|Low: $2,508 USD|High: $4,555 USD|Avg: $3,030 USD|-1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
November 2, 2026
Retailer 2$2,509 USD
Retailer 3$2,575 USD
Retailer 4$2,670 USD
MOH London$4,507 USD

21 data points across 4 retailers

4 retailers$2,509 USD to $4,507 USD

A
Cheapest Retailer
-
$2,509 USD
B+
Retailer 2
-
$2,575 USD
View
B+
Retailer 3
-
$2,670 USD
View
Most Expensive
B
MOH London
B9AF783AB · Nov 2
$4,507 USD
£3,549 GBP
View
3 more retailers have this diamond
Prices start from $2,509 USDSave up to $1,998 USD

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.

A
1.21ct Princess
$2,509 USD