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Princess|Natural|GIA

1.21ct E SI1 Princess Natural Diamond

GD • E/SI1 • GIA 2427827840

Certificate GIA 2427827840

Diamond specifications and retailer prices

From £3,031 GBP
$4,061 USD
As of October 30, 2026
Save £3,112 GBP (51%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £6,143 GBP at MOH London · As of October 29, 2026
View at MOH London

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 standard cut grade stated by the retailer rather than the lab and certified by GIA 2427827840. Listed at 7 retailers as of October 29, 2026, with prices from £3,031 to £6,143, a £3,112 spread on the same certified stone. MOH London lists it at £6,143. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.21
Carat
E
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2427827840
Dimensions5.82 × 5.65 × 4.24 mm
L/W Ratio1.03
Top View
5.82 mm5.65 mm1.21 ctE / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2427827840
Side View
Table 69.0%CrownGirdle: VTK-VTKPavilionCulet: NoneDepth 74.9%

Caratlytics Score

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B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £6,143 GBP|Low: £3,090 GBP|High: £6,184 GBP|Avg: £4,080 GBP|+0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 31, 2026
Retailer 5£3,090 GBP
Retailer 7£3,094 GBP
Retailer 3£3,829 GBP
Retailer 6£3,867 GBP
Retailer 2£4,099 GBP
Retailer 4£4,671 GBP
MOH London£6,143 GBP

41 data points across 7 retailers

7 retailers£3,031 GBP to £6,143 GBP

B
Cheapest Retailer
-
£3,031 GBP
$4,061 USD
Retailer 2
-
£3,090 GBP
$4,140 USD
View
Price last confirmed 13 days ago
B
Retailer 3
-
£3,829 GBP
View
Retailer 4
-
£3,867 GBP
A$7,972 AUD
View
Price last confirmed 21 days ago
B
Retailer 5
-
£4,099 GBP
€5,231 EUR
View
B
Retailer 6
-
£4,671 GBP
ZAR 101,114 ZAR
View
Most Expensive
B
MOH London
C9C9030E4 · Oct 29
£6,143 GBP
View
6 more retailers have this diamond
Prices start from £3,031 GBPSave up to £3,112 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
£3,031 GBP