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Princess|Natural|GIA

1.51ct I SI2 Princess Natural Diamond

EX • I/SI2 • GIA 2245074035

Certificate GIA 2245074035

Diamond specifications and retailer prices

From £2,305 GBP
As of November 4, 2026
Save £2,077 GBP (47%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £4,382 GBP at Helzberg Diamonds · As of November 6, 2026
View at Helzberg Diamonds

About this 1.51ct natural princess diamond

This 1.51ct natural princess sits in the one-and-a-half to two carat band, graded I 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 2245074035. Listed at 13 retailers as of November 4, 2026, with prices from £2,305 to £4,382, a £2,077 spread on the same certified stone. Helzberg Diamonds lists it at £4,382. 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

1.51
Carat
I
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle23.77°
Pavilion angle40.87°
OriginNatural
Grading LabGIA
CertificateGIA 2245074035
Dimensions6.25 × 6.25 × 4.57 mm
L/W Ratio1.00
Culet sizeNone
Top View
6.25 mm6.25 mm1.51 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2245074035
Side View
Table 73.0%Crown 23.77°Girdle: MED-STKPavilion 40.87°Culet: NDepth 73.2%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: £4,382 GBP|Low: £2,305 GBP|High: £4,527 GBP|Avg: £3,063 GBP|+0.4%
Helzberg 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 6, 2026
Retailer 9£2,305 GBP
Retailer 3£2,378 GBP
Retailer 8£2,434 GBP
Retailer 4£2,536 GBP
Retailer 5£2,686 GBP
Retailer 7£2,689 GBP
Retailer 13£2,777 GBP
Retailer 11£2,947 GBP
Retailer 12£2,996 GBP
Retailer 6£3,066 GBP
Retailer 2£3,597 GBP
Retailer 10£4,237 GBP
Helzberg Diamonds£4,382 GBP

32 data points across 13 retailers

13 retailers£2,305 GBP to £4,382 GBP

A
Cheapest Retailer
-
£2,305 GBP
A
Retailer 2
-
£2,378 GBP
View
A
Retailer 3
-
£2,434 GBP
View
A
Retailer 4
-
£2,536 GBP
View
Retailer 5
-
£2,686 GBP
View
Price last confirmed 16 days ago
A
Retailer 6
-
£2,689 GBP
View
A
Retailer 7
-
£2,777 GBP
View
A
Retailer 8
-
£2,947 GBP
View
A
Retailer 9
-
£2,996 GBP
View
A
Retailer 10
-
£3,066 GBP
View
B+
Retailer 11
-
£3,597 GBP
View
B+
Retailer 12
-
£4,237 GBP
View
Most Expensive
B
Helzberg Diamonds
XZRIIKLGNKGJL · Nov 6
£4,382 GBP
$5,865 USD
View
12 more retailers have this diamond
Prices start from £2,305 GBPSave up to £2,077 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.

A
1.51ct Princess
£2,305 GBP