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Princess|Natural|GIA

1.20ct H SI1 Princess Natural Diamond

EX • H/SI1 • GIA 3565369162

Certificate GIA 3565369162

Diamond specifications and retailer prices

From £1,495 GBP
As of November 5, 2026
Save £1,343 GBP (47%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £2,838 GBP at Helzberg Diamonds · As of November 6, 2026
View at Helzberg Diamonds

About this 1.2ct natural princess diamond

This 1.2ct natural princess sits in the classic one-carat band, graded H 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 3565369162. Listed at 16 retailers as of November 5, 2026, with prices from £1,495 to £2,838, a £1,343 spread on the same certified stone. Helzberg Diamonds lists it at £2,838. 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

1.20
Carat
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle28.85°
Pavilion angle37.88°
OriginNatural
Grading LabGIA
CertificateGIA 3565369162
Dimensions5.74 × 5.63 × 4.13 mm
L/W Ratio1.02
Culet sizeNone
Top View
5.74 mm5.63 mm1.20 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3565369162
Side View
Table 71.0%Crown 28.85°Girdle: ThickPavilion 37.88°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: Nov 5
Current: £2,838 GBP|Low: £1,487 GBP|High: £2,894 GBP|Avg: £1,918 GBP|-2.0%
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 7, 2026
Retailer 12£1,495 GBP
Retailer 9£1,570 GBP
Retailer 3£1,575 GBP
Retailer 14£1,582 GBP
Retailer 8£1,621 GBP
Retailer 7£1,723 GBP
Retailer 2£1,724 GBP
Retailer 15£1,843 GBP
Retailer 5£1,875 GBP
Retailer 13£1,875 GBP
Retailer 6£1,987 GBP
Retailer 11£2,030 GBP
Retailer 10£2,232 GBP
Retailer 16£2,412 GBP
Retailer 4£2,623 GBP
Helzberg Diamonds£2,838 GBP

34 data points across 16 retailers

16 retailers£1,495 GBP to £2,838 GBP

A
Cheapest Retailer
-
£1,495 GBP
A
Retailer 2
-
£1,570 GBP
View
A
Retailer 3
-
£1,575 GBP
View
A
Retailer 4
-
£1,582 GBP
View
A
Retailer 5
-
£1,621 GBP
View
A
Retailer 6
-
£1,723 GBP
View
A
Retailer 7
-
£1,724 GBP
View
B+
Retailer 8
-
£1,843 GBP
View
B+
Retailer 9
-
£1,875 GBP
View
B+
Retailer 10
-
£1,875 GBP
View
B+
Retailer 11
-
£1,987 GBP
View
B+
Retailer 12
-
£2,030 GBP
View
B+
Retailer 13
-
£2,232 GBP
View
B+
Retailer 14
-
£2,412 GBP
View
B
Retailer 15
-
£2,623 GBP
View
Most Expensive
B
Helzberg Diamonds
XZRJLMLJMPHMI · Nov 6
£2,838 GBP
$3,798 USD
View
15 more retailers have this diamond
Prices start from £1,495 GBPSave up to £1,343 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
1.20ct Princess
£1,495 GBP