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Princess|Natural|GIA

2.51ct F SI1 Princess Natural Diamond

EX • F/SI1 • GIA 2434961025

Certificate GIA 2434961025

Diamond specifications and retailer prices

From £16,738 GBP
$22,462 USD
As of November 1, 2026
Save £8,438 GBP (34%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £25,176 GBP at Cape Diamonds · As of November 1, 2026
View at Cape Diamonds

About this 2.51ct natural princess diamond

This 2.51ct natural princess sits in the two to three 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 2434961025. Listed at 13 retailers as of November 1, 2026, with prices from £16,738 to £25,176, a £8,438 spread on the same certified stone. Cape Diamonds lists it at £25,176. 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

2.51
Carat
F
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle39.02°
Pavilion angle38.42°
OriginNatural
Grading LabGIA
CertificateGIA 2434961025
Dimensions7.74 × 7.54 × 5.11 mm
L/W Ratio1.03
Top View
7.74 mm7.54 mm2.51 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2434961025
Side View
Table 74.0%Crown 39.02°Girdle: Slightly ThickPavilion 38.42°Culet: NoneDepth 67.8%

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: £25,176 GBP|Low: £15,247 GBP|High: £25,176 GBP|Avg: £19,488 GBP|+3.1%
Cape Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 3, 2026
Retailer 7£15,247 GBP
Retailer 8£16,738 GBP
Retailer 12£17,732 GBP
Retailer 2£18,354 GBP
Retailer 11£18,829 GBP
Retailer 3£19,412 GBP
Retailer 5£19,412 GBP
Retailer 9£19,946 GBP
Retailer 4£20,061 GBP
Retailer 13£20,315 GBP
Retailer 6£20,607 GBP
Retailer 10£21,266 GBP
Cape Diamonds£25,176 GBP

41 data points across 13 retailers

13 retailers£16,738 GBP to £25,176 GBP

Retailer 1
-
£15,247 GBP
$20,460 USD
Price last confirmed 16 days ago
B+
Retailer 2
-
£16,738 GBP
$22,462 USD
View
B+
Retailer 3
-
£17,732 GBP
$23,795 USD
View
B+
Retailer 4
-
£18,354 GBP
View
B
Retailer 5
-
£18,829 GBP
$25,267 USD
View
B
Retailer 6
-
£19,412 GBP
$26,050 USD
View
B
Retailer 7
-
£19,412 GBP
$26,050 USD
View
B
Retailer 8
-
£19,946 GBP
A$41,178 AUD
View
B
Retailer 9
-
£20,061 GBP
$26,920 USD
View
B
Retailer 10
-
£20,315 GBP
$27,262 USD
View
B
Retailer 11
-
£20,607 GBP
€26,336 EUR
View
Retailer 12
-
£21,266 GBP
$28,538 USD
View
Price last confirmed 7 days ago
Most Expensive
B
Cape Diamonds
cert_2434961025 · Nov 1
£25,176 GBP
ZAR 545,805 ZAR
View
12 more retailers have this diamond
Prices start from £16,738 GBPSave up to £8,438 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+
2.51ct Princess
£16,738 GBP