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Princess|Natural|GIA

1.29ct I SI1 Princess Natural Diamond

ID • I/SI1 • GIA 253

Certificate GIA 253

Diamond specifications and retailer prices

From €1,830 EUR
As of November 4, 2026
2 retailers carry this diamond
Most expensive: €1,876 EUR at Rare Carat · As of October 28, 2026
View at Rare Carat

About this 1.29ct natural princess diamond

This 1.29ct natural princess sits in the one-and-a-quarter to one-and-a-half carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA. Listed at 2 retailers as of November 4, 2026. 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

1.29
Carat
I
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 253
Dimensions5.79 × 5.76 × 4.22 mm
L/W Ratio1.01
Top View
5.79 mm5.76 mm1.29 ctI / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 253
Side View
Table 71.0%CrownGirdle: Thick to Very ThickPavilionCulet: NDepth 73.2%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 4
Current: €1,876 EUR|Low: €1,830 EUR|High: €2,391 EUR|Avg: €2,107 EUR|-7.7%
Rare Carat
Retailer 2
Retailer 3
November 4, 2026
Retailer 2€1,830 EUR
Rare Carat€1,876 EUR
Retailer 3€2,391 EUR

8 data points across 3 retailers

2 retailers

A
Cheapest Retailer
-
€1,830 EUR
Most Expensive
Rare Carat
262630-253 · Oct 28
€1,876 EUR
$2,095 USD
View
Price last confirmed 9 days ago
1 more retailer has this diamond
Prices start from €1,830 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.

A
1.29ct Princess
€1,830 EUR