CaratHunter
Plans
Princess|Natural|GIA

1.21ct G SI2 Princess Natural Diamond

EX • G/SI2 • GIA 5563813007

Certificate GIA 5563813007

Diamond specifications and retailer prices

From £1,578 GBP
As of November 6, 2026
Save £1,274 GBP (45%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £2,852 GBP at Helzberg Diamonds · As of November 6, 2026
View at Helzberg Diamonds

About this 1.21ct natural princess diamond

This 1.21ct natural princess sits in the classic one-carat band, graded G 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 5563813007. Listed at 9 retailers as of November 6, 2026, with prices from £1,578 to £2,852, a £1,274 spread on the same certified stone. Helzberg Diamonds lists it at £2,852. 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

1.21
Carat
G
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle21.27°
Pavilion angle39.36°
OriginNatural
Grading LabGIA
CertificateGIA 5563813007
Dimensions5.98 × 5.93 × 4.12 mm
L/W Ratio1.01
Culet sizeNone
Top View
5.98 mm5.93 mm1.21 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5563813007
Side View
Table 73.0%Crown 21.27°Girdle: Slightly ThickPavilion 39.36°Culet: NDepth 69.5%

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 6
Current: £2,852 GBP|Low: £1,578 GBP|High: £2,852 GBP|Avg: £2,018 GBP
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 2£1,578 GBP
Retailer 3£1,666 GBP
Retailer 7£1,733 GBP
Retailer 9£1,739 GBP
Retailer 6£1,996 GBP
Retailer 8£2,040 GBP
Retailer 5£2,246 GBP
Retailer 4£2,625 GBP
Helzberg Diamonds£2,852 GBP

2 data points across 9 retailers

9 retailers£1,578 GBP to £2,852 GBP

A
Cheapest Retailer
-
£1,578 GBP
A
Retailer 2
-
£1,666 GBP
View
A
Retailer 3
-
£1,733 GBP
View
A
Retailer 4
-
£1,739 GBP
View
B+
Retailer 5
-
£1,996 GBP
View
B+
Retailer 6
-
£2,040 GBP
View
B+
Retailer 7
-
£2,246 GBP
View
B
Retailer 8
-
£2,625 GBP
View
Most Expensive
B
Helzberg Diamonds
XZRLLMJOHJGGN · Nov 6
£2,852 GBP
$3,817 USD
View
8 more retailers have this diamond
Prices start from £1,578 GBPSave up to £1,274 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
1.21ct Princess
£1,578 GBP