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Princess|Natural|GIA

1.50ct I SI1 Princess Natural Diamond

GD • I/SI1 • GIA 3455689549

Certificate GIA 3455689549

Diamond specifications and retailer prices

From £4,359 GBP
$5,840 USD
As of November 1, 2026
Save £4,868 GBP (53%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £9,227 GBP at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.5ct natural princess diamond

This 1.5ct natural princess sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 3455689549. Listed at 18 retailers as of October 30, 2026, with prices from £4,359 to £9,227, a £4,868 spread on the same certified stone. NZ Jewellers lists it at £9,227. 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

1.50
Carat
I
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle47.7°
Pavilion angle39.5°
OriginNatural
Grading LabGIA
CertificateGIA 3455689549
Dimensions6.43 × 6.41 × 4.50 mm
L/W Ratio1.00
Top View
6.43 mm6.41 mm1.50 ctI / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 3455689549
Side View
Table 72.0%Crown 47.7°Girdle: 2.1Pavilion 39.5°Culet: NoneDepth 70.2%

Caratlytics Score

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B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: £9,227 GBP|Low: £3,844 GBP|High: £9,227 GBP|Avg: £5,928 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 7£4,613 GBP
Retailer 10£4,638 GBP
Retailer 9£4,997 GBP
Retailer 8£5,074 GBP
Retailer 4£5,158 GBP
Retailer 6£5,354 GBP
Retailer 2£5,677 GBP
Retailer 5£6,778 GBP
Retailer 3£7,688 GBP
NZ Jewellers£9,227 GBP

45 data points across 10 retailers

18 retailers£4,359 GBP to £9,227 GBP

B
Cheapest Retailer
-
£4,359 GBP
$5,840 USD
B
Retailer 2
-
£4,613 GBP
$6,181 USD
View
B
Retailer 3
-
£4,613 GBP
$6,181 USD
View
Final sale: no returns
B
Retailer 4
-
£4,638 GBP
$6,215 USD
View
B
Retailer 5
-
£4,652 GBP
$6,233 USD
View
B
Retailer 6
-
£4,997 GBP
$6,696 USD
View
B
Retailer 7
-
£5,074 GBP
$6,799 USD
View
B
Retailer 8
-
£5,158 GBP
View
Retailer 9
-
£5,354 GBP
A$11,037 AUD
View
Price last confirmed 11 days ago
B
Retailer 10
-
£5,553 GBP
$7,440 USD
View
B
Retailer 11
-
£5,553 GBP
$7,440 USD
View
B
Retailer 12
-
£5,639 GBP
$7,556 USD
View
B
Retailer 13
-
£5,677 GBP
€7,244 EUR
View
B
Retailer 14
-
£5,739 GBP
$7,690 USD
View
B
Retailer 15
-
£5,767 GBP
$7,727 USD
View
B
Retailer 16
-
£6,778 GBP
ZAR 146,716 ZAR
View
C
Retailer 17
-
£7,688 GBP
View
Most Expensive
C
NZ Jewellers
dc27f912-8677-45ae-a8df-559e5c814b4d · Oct 30
£9,227 GBP
$12,363 USD
View
17 more retailers have this diamond
Prices start from £4,359 GBPSave up to £4,868 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
1.50ct Princess
£4,359 GBP