Princess|Natural|GIA

1.21ct E SI1 Princess Natural Diamond

EX • E/SI1

Diamond specifications and retailer prices

From £2,848 GBP
CA$5,300 CAD
As of October 30, 2026
Save £413 GBP (13%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £3,261 GBP at The Diamond Guys · As of October 31, 2026
View at The Diamond Guys

About this 1.21ct natural princess diamond

This 1.21ct 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. Listed at 4 retailers as of October 30, 2026, with a relatively tight 14% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
Dimensions5.69 × 5.65 × 4.13 mm
L/W Ratio1.01
Top View
5.69 mm5.65 mm1.21 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA
Side View
Table 69.0%CrownGirdle: ThickPavilionCuletDepth 73.0%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Oct 30
Current: £3,150 GBP|Low: £2,848 GBP|High: £3,335 GBP|Avg: £3,066 GBP|+1.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
The Diamond Guys
September 30, 2026
Retailer 4£2,848 GBP
Retailer 3£2,891 GBP
Retailer 5£2,935 GBP
Retailer 1£3,150 GBP
The Diamond Guys£3,261 GBP
Retailer 2£3,335 GBP

14 data points across 6 retailers

4 retailers£2,848 GBP to £3,261 GBP

B+
Cheapest Retailer
-
£2,848 GBP
CA$5,300 CAD
B
Retailer 2
-
£2,935 GBP
$3,932 USD
View
Retailer 3
-
£3,150 GBP
View
Price last confirmed 31 days ago
Most Expensive
B
The Diamond Guys
1966660029 · Oct 31
£3,261 GBP
$4,369 USD
View
3 more retailers have this diamond
Prices start from £2,848 GBPSave up to £413 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+
1.21ct Princess
£2,848 GBP