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Princess|Natural|GIA

1.50ct J SI1 Princess Natural Diamond

EX • J/SI1 • GIA 5566038986

Certificate GIA 5566038986

Diamond specifications and retailer prices

From £2,153 GBP
$2,885 USD
As of October 31, 2026
Save £1,941 GBP (47%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £4,094 GBP at Helzberg Diamonds · As of November 1, 2026
View at Helzberg Diamonds

About this 1.5ct natural princess diamond

This 1.5ct natural princess sits in the one-and-a-half to two carat band, graded J 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 5566038986. Listed at 15 retailers as of October 31, 2026, with prices from £2,153 to £4,094, a £1,941 spread on the same certified stone. Helzberg Diamonds lists it at £4,094. 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
J
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle30.01°
Pavilion angle38.53°
OriginNatural
Grading LabGIA
CertificateGIA 5566038986
Dimensions6.19 × 6.12 × 4.49 mm
L/W Ratio1.01
Culet sizeNone
Top View
6.19 mm6.12 mm1.50 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5566038986
Side View
Table 73.0%Crown 30.01°Girdle: STK-THKPavilion 38.53°Culet: NoneDepth 73.4%

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: Oct 31
Current: £4,094 GBP|Low: £2,153 GBP|High: £4,438 GBP|Avg: £2,944 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
Retailer 14
Retailer 15
Retailer 16
November 1, 2026
Retailer 11£2,153 GBP
Retailer 16£2,194 GBP
Retailer 7£2,265 GBP
Retailer 12£2,322 GBP
Retailer 13£2,327 GBP
Retailer 9£2,538 GBP
Retailer 5£2,594 GBP
Retailer 14£2,746 GBP
Retailer 3£2,762 GBP
Retailer 4£2,820 GBP
Retailer 10£2,880 GBP
Retailer 8£3,135 GBP
Retailer 2£3,361 GBP
Retailer 15£3,632 GBP
Retailer 6£3,971 GBP
Helzberg Diamonds£4,094 GBP

20 data points across 16 retailers

15 retailers£2,153 GBP to £4,094 GBP

A
Cheapest Retailer
-
£2,153 GBP
$2,885 USD
A
Retailer 2
-
£2,194 GBP
SGD 3,972 SGD
View
A
Retailer 3
-
£2,265 GBP
$3,035 USD
View
A
Retailer 4
-
£2,322 GBP
$3,111 USD
View
A
Retailer 5
-
£2,327 GBP
$3,118 USD
View
B+
Retailer 6
-
£2,538 GBP
View
B+
Retailer 7
-
£2,594 GBP
SGD 4,697 SGD
View
B+
Retailer 8
-
£2,746 GBP
$3,680 USD
View
B+
Retailer 9
-
£2,762 GBP
$3,701 USD
View
B+
Retailer 10
-
£2,820 GBP
$3,779 USD
View
B+
Retailer 11
-
£2,880 GBP
€3,675 EUR
View
B+
Retailer 12
-
£3,361 GBP
$4,504 USD
View
B
Retailer 13
-
£3,632 GBP
$4,866 USD
View
B
Retailer 14
-
£3,971 GBP
$5,321 USD
View
Most Expensive
B
Helzberg Diamonds
XZRLLMMGJOPOM · Nov 1
£4,094 GBP
$5,486 USD
View
14 more retailers have this diamond
Prices start from £2,153 GBPSave up to £1,941 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
£2,153 GBP