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Princess|Natural|GIA

1.20ct H SI2 Princess Natural Diamond

EX • H/SI2 • GIA 2566272173

Certificate GIA 2566272173

Diamond specifications and retailer prices

From £1,388 GBP
As of November 6, 2026
Save £1,120 GBP (45%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £2,508 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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2566272173. Listed at 14 retailers as of November 6, 2026, with prices from £1,388 to £2,508, a £1,120 spread on the same certified stone. Helzberg Diamonds lists it at £2,508. 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
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle24.65°
Pavilion angle39.64°
OriginNatural
Grading LabGIA
CertificateGIA 2566272173
Dimensions5.72 × 5.71 × 4.17 mm
L/W Ratio1.00
Culet sizeNone
Top View
5.72 mm5.71 mm1.20 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2566272173
Side View
Table 73.0%Crown 24.65°Girdle: STK-THKPavilion 39.64°Culet: NoneDepth 73.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £2,508 GBP|Low: £1,388 GBP|High: £2,798 GBP|Avg: £1,928 GBP|-10.4%
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
November 6, 2026
Retailer 2£1,388 GBP
Retailer 3£1,407 GBP
Retailer 5£1,464 GBP
Retailer 11£1,518 GBP
Retailer 10£1,522 GBP
Retailer 14£1,523 GBP
Retailer 4£1,552 GBP
Retailer 8£1,599 GBP
Retailer 12£1,670 GBP
Retailer 13£1,796 GBP
Retailer 9£1,976 GBP
Retailer 6£2,010 GBP
Retailer 7£2,318 GBP
Helzberg Diamonds£2,508 GBP

30 data points across 14 retailers

14 retailers£1,388 GBP to £2,508 GBP

A
Cheapest Retailer
-
£1,388 GBP
A
Retailer 2
-
£1,407 GBP
View
A
Retailer 3
-
£1,464 GBP
View
A
Retailer 4
-
£1,518 GBP
View
A
Retailer 5
-
£1,522 GBP
View
A
Retailer 6
-
£1,523 GBP
View
A
Retailer 7
-
£1,552 GBP
View
A
Retailer 8
-
£1,599 GBP
View
A
Retailer 9
-
£1,670 GBP
View
B+
Retailer 10
-
£1,796 GBP
View
B+
Retailer 11
-
£1,976 GBP
View
Retailer 12
-
£2,010 GBP
View
Price last confirmed 9 days ago
B+
Retailer 13
-
£2,318 GBP
View
Most Expensive
B
Helzberg Diamonds
XZRILMMINIHNJ · Nov 6
£2,508 GBP
$3,357 USD
View
13 more retailers have this diamond
Prices start from £1,388 GBPSave up to £1,120 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
£1,388 GBP