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Princess|Natural|GIA

1.51ct G SI1 Princess Natural Diamond

EX • G/SI1 • GIA 7551578720

Certificate GIA 7551578720

Diamond specifications and retailer prices

From £3,018 GBP
$4,050 USD
As of November 1, 2026
Save £3,687 GBP (55%) vs most expensive(unlock to see where)
32 retailers carry this diamond
Most expensive: £6,705 GBP at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.51ct natural princess diamond

This 1.51ct natural princess sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7551578720. Listed at 32 retailers as of October 30, 2026, with prices from £3,018 to £6,705, a £3,687 spread on the same certified stone. NZ Jewellers lists it at £6,705. 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
G
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle30.8°
Pavilion angle37.88°
OriginNatural
Grading LabGIA
CertificateGIA 7551578720
Dimensions6.28 × 6.18 × 4.45 mm
L/W Ratio1.02
Culet sizeNone
Top View
6.28 mm6.18 mm1.51 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7551578720
Side View
Table 73.0%Crown 30.8°Girdle: MED-THKPavilion 37.88°Culet: NoneDepth 72.0%

Caratlytics Score

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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: Nov 1
Current: £6,705 GBP|Low: £2,742 GBP|High: £6,705 GBP|Avg: £3,883 GBP
NZ Jewellers
Retailer 2
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Retailer 33
November 2, 2026
Retailer 26£2,742 GBP
Retailer 27£2,957 GBP
Retailer 10£3,018 GBP
Retailer 9£3,132 GBP
Retailer 3£3,136 GBP
Retailer 32£3,166 GBP
Retailer 16£3,167 GBP
Retailer 19£3,206 GBP
Retailer 17£3,353 GBP
Retailer 25£3,407 GBP
Retailer 30£3,420 GBP
Retailer 4£3,597 GBP
Retailer 14£3,601 GBP
Retailer 18£3,625 GBP
Retailer 12£3,632 GBP
Retailer 31£3,632 GBP
Retailer 33£3,632 GBP
Retailer 5£3,694 GBP
Retailer 2£3,778 GBP
Retailer 21£3,826 GBP
Retailer 20£3,896 GBP
Retailer 24£3,912 GBP
Retailer 15£4,043 GBP
Retailer 6£4,069 GBP
Retailer 11£4,069 GBP
Retailer 22£4,117 GBP
Retailer 8£4,191 GBP
Retailer 13£4,267 GBP
Retailer 7£4,546 GBP
Retailer 29£4,928 GBP
Retailer 23£5,805 GBP
Retailer 28£6,385 GBP
NZ Jewellers£6,705 GBP

21 data points across 33 retailers

32 retailers£3,018 GBP to £6,705 GBP

A
Cheapest Retailer
-
£3,018 GBP
$4,050 USD
A
Retailer 2
-
£3,132 GBP
$4,203 USD
View
A
Retailer 3
-
£3,136 GBP
$4,208 USD
View
A
Retailer 4
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£3,166 GBP
$4,249 USD
View
A
Retailer 5
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£3,167 GBP
$4,250 USD
View
A
Retailer 6
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£3,206 GBP
$4,302 USD
View
Retailer 7
-
£3,283 GBP
$4,406 USD
View
Price last confirmed 14 days ago
A
Retailer 8
-
£3,353 GBP
$4,499 USD
View
Final sale: no returns
A
Retailer 9
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£3,420 GBP
$4,590 USD
View
A
Retailer 10
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£3,424 GBP
$4,595 USD
View
A
Retailer 11
-
£3,597 GBP
CA$6,705 CAD
View
A
Retailer 12
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£3,601 GBP
$4,832 USD
View
A
Retailer 13
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£3,625 GBP
$4,864 USD
View
A
Retailer 14
-
£3,632 GBP
$4,874 USD
View
A
Retailer 15
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£3,632 GBP
$4,874 USD
View
A
Retailer 16
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£3,632 GBP
$4,874 USD
View
A
Retailer 17
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£3,694 GBP
$4,957 USD
View
A
Retailer 18
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£3,778 GBP
View
A
Retailer 19
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£3,826 GBP
$5,134 USD
View
A
Retailer 20
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£3,896 GBP
$5,228 USD
View
A
Retailer 21
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£3,912 GBP
View
A
Retailer 22
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£4,043 GBP
$5,426 USD
View
A
Retailer 23
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£4,069 GBP
$5,460 USD
View
B+
Retailer 24
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£4,069 GBP
$5,460 USD
View
B+
Retailer 25
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£4,117 GBP
$5,525 USD
View
B+
Retailer 26
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£4,191 GBP
$5,624 USD
View
B+
Retailer 27
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£4,267 GBP
€5,453 EUR
View
B+
Retailer 28
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£4,546 GBP
$6,100 USD
View
B+
Retailer 29
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£4,928 GBP
ZAR 106,840 ZAR
View
B+
Retailer 30
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£5,805 GBP
$7,790 USD
View
B
Retailer 31
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£6,385 GBP
View
Most Expensive
B
NZ Jewellers
400288f9-cddc-40c9-9981-fa724fb59b2c · Oct 30
£6,705 GBP
$8,998 USD
View
31 more retailers have this diamond
Prices start from £3,018 GBPSave up to £3,687 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
£3,018 GBP