CaratHunter
Plans
Princess|Natural|GIA

1.50ct I SI1 Princess Natural Diamond

EX • I/SI1 • GIA 1553417565

Certificate GIA 1553417565

Diamond specifications and retailer prices

From £2,493 GBP
HK$26,100 HKD
As of November 2, 2026
Save £2,905 GBP (54%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £5,998 GBP at NZ Jewellers · As of September 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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1553417565. Listed at 20 retailers as of October 29, 2026, with a 116% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

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

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1553417565
Dimensions6.31 × 6.24 × 4.51 mm
L/W Ratio1.01
Girdle conditionPolished
Top View
6.31 mm6.24 mm1.50 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1553417565
Side View
Table 71.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 72.2%

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 2
Current: £2,493 GBP|Low: £2,455 GBP|High: £5,473 GBP|Avg: £3,411 GBP|+0.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
November 2, 2026
Retailer 1£2,493 GBP
Retailer 5£2,615 GBP
Retailer 16£2,630 GBP
Retailer 14£2,779 GBP
Retailer 2£2,799 GBP
Retailer 6£2,818 GBP
Retailer 8£2,907 GBP
Retailer 18£2,920 GBP
Retailer 12£2,982 GBP
Retailer 17£2,985 GBP
Retailer 11£3,153 GBP
Retailer 15£3,172 GBP
Retailer 4£3,232 GBP
Retailer 10£3,423 GBP
Retailer 13£3,760 GBP
Retailer 3£4,143 GBP
Retailer 7£5,241 GBP
Retailer 9£5,398 GBP

23 data points across 18 retailers

20 retailers£2,493 GBP to £5,398 GBP

A
Cheapest Retailer
-
£2,493 GBP
HK$26,100 HKD
A
Retailer 2
-
£2,615 GBP
$3,504 USD
View
A
Retailer 3
-
£2,630 GBP
$3,524 USD
View
A
Retailer 4
-
£2,779 GBP
$3,724 USD
View
Final sale: no returns
A
Retailer 5
-
£2,799 GBP
€3,571 EUR
View
A
Retailer 6
-
£2,818 GBP
$3,776 USD
View
A
Retailer 7
-
£2,907 GBP
$3,895 USD
View
A
Retailer 8
-
£2,920 GBP
A$6,018 AUD
View
A
Retailer 9
-
£2,982 GBP
$3,995 USD
View
A
Retailer 10
-
£2,985 GBP
$4,000 USD
View
A
Retailer 11
-
£3,153 GBP
View
A
Retailer 12
-
£3,172 GBP
View
A
Retailer 13
-
£3,232 GBP
$4,331 USD
View
Retailer 14
-
£3,423 GBP
A$7,056 AUD
View
Price last confirmed 23 days ago
B+
Retailer 15
-
£3,453 GBP
A$7,118 AUD
View
B+
Retailer 16
-
£3,760 GBP
€4,798 EUR
View
B+
Retailer 17
-
£4,143 GBP
ZAR 89,688 ZAR
View
Retailer 18
-
£5,241 GBP
$7,022 USD
View
Price last confirmed 9 days ago
B
Retailer 19
-
£5,398 GBP
View
Most Expensive
NZ Jewellers
a7fb254c-16f2-4011-a136-9283ad0406a8 · Sep 30
£5,998 GBP
$8,037 USD
View
Price last confirmed 32 days ago
19 more retailers have this diamond
Prices start from £2,493 GBPSave up to £2,905 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
1.50ct Princess
£2,493 GBP