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Princess|Natural|GIA

1.29ct H SI2 Princess Natural Diamond

GD • H/SI2 • GIA 5231587323

Certificate GIA 5231587323

Diamond specifications and retailer prices

From £2,492 GBP
As of November 1, 2026
Save £1,064 GBP (30%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £3,555 GBP at Washington Diamond · As of November 6, 2026
View at Washington Diamond

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 standard cut grade stated by the retailer rather than the lab and certified by GIA 5231587323. Listed at 9 retailers as of November 1, 2026, with prices from £2,492 to £3,555, a £1,064 spread on the same certified stone. Washington Diamond lists it at £3,555. 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

1.29
Carat
H
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5231587323
Dimensions6.07 × 5.94 × 4.24 mm
L/W Ratio1.02
Top View
6.07 mm5.94 mm1.29 ctH / SI2
OriginNatural
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 5231587323
Side View
Table 72.0%CrownGirdle: ThickPavilionCulet: NoneDepth 71.4%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: £3,376 GBP|Low: £2,492 GBP|High: £3,555 GBP|Avg: £3,019 GBP|+2.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Washington Diamond
November 6, 2026
Retailer 2£2,492 GBP
Retailer 8£2,507 GBP
Retailer 4£2,740 GBP
Retailer 5£3,137 GBP
Retailer 6£3,257 GBP
Retailer 7£3,257 GBP
Retailer 3£3,362 GBP
Retailer 1£3,376 GBP
Washington Diamond£3,555 GBP

18 data points across 9 retailers

9 retailers£2,492 GBP to £3,555 GBP

B+
Cheapest Retailer
-
£2,492 GBP
B+
Retailer 2
-
£2,507 GBP
View
B
Retailer 3
-
£2,740 GBP
View
B
Retailer 4
-
£3,137 GBP
View
B
Retailer 5
-
£3,257 GBP
View
B
Retailer 6
-
£3,257 GBP
View
B
Retailer 7
-
£3,362 GBP
View
B
Retailer 8
-
£3,376 GBP
View
Most Expensive
B
Washington Diamond
1947491878 · Nov 6
£3,555 GBP
$4,759 USD
View
8 more retailers have this diamond
Prices start from £2,492 GBPSave up to £1,064 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
£2,492 GBP