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Princess|Natural|GIA

1.51ct F SI2 Princess Natural Diamond

EX • F/SI2 • GIA 5242021713

Certificate GIA 5242021713

Diamond specifications and retailer prices

From £2,158 GBP
$2,896 USD
As of October 31, 2026
Save £1,943 GBP (47%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £4,102 GBP at Helzberg Diamonds · As of November 2, 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 F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5242021713. Listed at 13 retailers as of October 31, 2026, with prices from £2,158 to £4,102, a £1,943 spread on the same certified stone. Helzberg Diamonds lists it at £4,102. 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
F
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle24.31°
Pavilion angle39.65°
OriginNatural
Grading LabGIA
CertificateGIA 5242021713
Dimensions6.26 × 6.19 × 4.52 mm
L/W Ratio1.01
Culet sizeNone
Top View
6.26 mm6.19 mm1.51 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5242021713
Side View
Table 73.0%Crown 24.31°Girdle: STK-THKPavilion 39.65°Culet: NoneDepth 73.0%

Caratlytics Score

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

Price History

Last verified: Oct 31
Current: £4,102 GBP|Low: £2,158 GBP|High: £4,448 GBP|Avg: £2,985 GBP|-7.8%
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 2, 2026
Retailer 9£2,158 GBP
Retailer 7£2,199 GBP
Retailer 11£2,326 GBP
Retailer 2£2,523 GBP
Retailer 10£2,554 GBP
Retailer 4£2,599 GBP
Retailer 13£2,750 GBP
Retailer 8£2,768 GBP
Retailer 3£2,825 GBP
Retailer 5£2,925 GBP
Retailer 6£3,368 GBP
Retailer 12£4,039 GBP
Helzberg Diamonds£4,102 GBP

31 data points across 13 retailers

13 retailers£2,158 GBP to £4,102 GBP

A
Cheapest Retailer
-
£2,158 GBP
$2,896 USD
A
Retailer 2
-
£2,199 GBP
SGD 3,987 SGD
View
A
Retailer 3
-
£2,326 GBP
$3,122 USD
View
A
Retailer 4
-
£2,523 GBP
View
A
Retailer 5
-
£2,554 GBP
$3,427 USD
View
A
Retailer 6
-
£2,599 GBP
SGD 4,714 SGD
View
A
Retailer 7
-
£2,750 GBP
$3,690 USD
View
A
Retailer 8
-
£2,768 GBP
$3,714 USD
View
A
Retailer 9
-
£2,825 GBP
$3,791 USD
View
Retailer 10
-
£2,925 GBP
€3,738 EUR
View
Price last confirmed 10 days ago
A
Retailer 11
-
£3,368 GBP
$4,520 USD
View
Retailer 12
-
£4,039 GBP
$5,420 USD
View
Price last confirmed 9 days ago
Most Expensive
B+
Helzberg Diamonds
XZRLIKIGIHNHJ · Nov 2
£4,102 GBP
$5,504 USD
View
12 more retailers have this diamond
Prices start from £2,158 GBPSave up to £1,943 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
£2,158 GBP