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Princess|Natural|GIA

1.29ct H SI2 Princess Natural Diamond

ID • H/SI2 • GIA 2

Certificate GIA 2

Diamond specifications and retailer prices

From £2,447 GBP
As of November 4, 2026
Save £625 GBP (20%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £3,071 GBP at Blue Nile · As of November 5, 2026
View at Blue Nile

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 H 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 £2,447 to £3,071, a £625 spread on the same certified stone. Blue Nile lists it at £3,071. 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
H
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2
Dimensions6.06 × 5.94 × 4.22 mm
L/W Ratio1.02
Top View
6.06 mm5.94 mm1.29 ctH / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2
Side View
Table 72.0%CrownGirdle: ThickPavilionCulet: NoneDepth 71.0%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 4
Current: £3,071 GBP|Low: £2,447 GBP|High: £3,071 GBP|Avg: £2,576 GBP
Blue Nile
Retailer 2
Retailer 3
September 26, 2026
Retailer 3£2,447 GBP
Retailer 2£2,456 GBP
Blue Nile£3,071 GBP

2 data points across 3 retailers

3 retailers£2,447 GBP to £3,071 GBP

B+
Cheapest Retailer
-
£2,447 GBP
B+
Retailer 2
-
£2,456 GBP
View
Most Expensive
B
Blue Nile
25526145 · Nov 5
£3,071 GBP
$4,111 USD
View
2 more retailers have this diamond
Prices start from £2,447 GBPSave up to £625 GBP

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+
1.29ct Princess
£2,447 GBP