CaratHunter
Plans
Princess|Natural|GIA

1.20ct E SI1 Princess Natural Diamond

EX • E/SI1 • GIA 6562584426

Certificate GIA 6562584426

Diamond specifications and retailer prices

From £2,238 GBP
As of November 4, 2026
Save £2,019 GBP (47%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £4,257 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 E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6562584426. Listed at 15 retailers as of November 4, 2026, with prices from £2,238 to £4,257, a £2,019 spread on the same certified stone. Helzberg Diamonds lists it at £4,257. 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
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle22.99°
Pavilion angle39.55°
OriginNatural
Grading LabGIA
CertificateGIA 6562584426
Dimensions5.82 × 5.76 × 4.18 mm
L/W Ratio1.01
Culet sizeNone
Top View
5.82 mm5.76 mm1.20 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6562584426
Side View
Table 73.0%Crown 22.99°Girdle: STK-THKPavilion 39.55°Culet: NDepth 72.7%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: £4,257 GBP|Low: £2,238 GBP|High: £4,257 GBP|Avg: £2,949 GBP
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
November 6, 2026
Retailer 11£2,238 GBP
Retailer 9£2,292 GBP
Retailer 7£2,330 GBP
Retailer 15£2,412 GBP
Retailer 3£2,418 GBP
Retailer 12£2,437 GBP
Retailer 8£2,611 GBP
Retailer 5£2,696 GBP
Retailer 13£2,864 GBP
Retailer 4£2,916 GBP
Retailer 2£2,975 GBP
Retailer 10£3,492 GBP
Retailer 14£3,774 GBP
Retailer 6£4,048 GBP
Helzberg Diamonds£4,257 GBP

22 data points across 15 retailers

15 retailers£2,238 GBP to £4,257 GBP

B+
Cheapest Retailer
-
£2,238 GBP
B+
Retailer 2
-
£2,292 GBP
View
B+
Retailer 3
-
£2,330 GBP
View
B+
Retailer 4
-
£2,412 GBP
View
B+
Retailer 5
-
£2,418 GBP
View
B+
Retailer 6
-
£2,437 GBP
View
B+
Retailer 7
-
£2,611 GBP
View
B+
Retailer 8
-
£2,696 GBP
View
B+
Retailer 9
-
£2,864 GBP
View
B+
Retailer 10
-
£2,916 GBP
View
B+
Retailer 11
-
£2,975 GBP
View
B
Retailer 12
-
£3,492 GBP
View
B
Retailer 13
-
£3,774 GBP
View
B
Retailer 14
-
£4,048 GBP
View
Most Expensive
B
Helzberg Diamonds
XZRMLMILOKKIM · Nov 6
£4,257 GBP
$5,729 USD
View
14 more retailers have this diamond
Prices start from £2,238 GBPSave up to £2,019 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+
1.20ct Princess
£2,238 GBP