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Princess|Natural|GIA

1.21ct J SI2 Princess Natural Diamond

ID • J/SI2 • GIA 4

Certificate GIA 4

Diamond specifications and retailer prices

From €2,820 EUR
As of November 4, 2026
Save €728 EUR (21%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: €3,549 EUR at Blue Nile · As of November 5, 2026
View at Blue Nile

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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA. Listed at 3 retailers as of November 4, 2026, with prices from €2,820 to €3,549, a €728 spread on the same certified stone. Blue Nile lists it at €3,549. 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
J
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 4
Dimensions6.03 × 5.84 × 4.06 mm
L/W Ratio1.03
Top View
6.03 mm5.84 mm1.21 ctJ / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 4
Side View
Table 70.0%CrownGirdle: Slightly ThickPavilionCulet: NoneDepth 69.5%

Caratlytics Score

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B
Good
Decent quality, room for better deals
Unlock full score analysis
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Price History

Last verified: Nov 4
Current: €3,549 EUR|Low: €2,820 EUR|High: €3,549 EUR|Avg: €2,973 EUR
Blue Nile
Retailer 2
Retailer 3
September 26, 2026
Retailer 3€2,820 EUR
Retailer 2€2,837 EUR
Blue Nile€3,549 EUR

2 data points across 3 retailers

3 retailers€2,820 EUR to €3,549 EUR

B
Cheapest Retailer
-
€2,820 EUR
B
Retailer 2
-
€2,837 EUR
View
Most Expensive
B
Blue Nile
17346607 · Nov 5
€3,549 EUR
$3,962 USD
View
2 more retailers have this diamond
Prices start from €2,820 EURSave up to €728 EUR

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
€2,820 EUR