CaratHunter
Plans
Oval|Natural|GIA

1.21ct E SI1 Oval Natural Diamond

EX • E/SI1 • GIA 5566279706

Certificate GIA 5566279706

Diamond specifications and retailer prices

From £3,499 GBP
As of November 5, 2026
Save £3,835 GBP (52%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £7,334 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.21ct natural oval diamond

This 1.21ct natural oval 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 5566279706. Listed at 10 retailers as of November 5, 2026, with prices from £3,499 to £7,334, a £3,835 spread on the same certified stone. NZ Jewellers lists it at £7,334. 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
CertificateGIA 5566279706
Dimensions8.91 × 5.64 × 3.55 mm
L/W Ratio1.58
Girdle conditionFaceted
Top View
8.91 mm5.64 mm1.21 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5566279706
Side View
Table 58.0%CrownGirdle: THK-VTKPavilionCuletDepth 62.9%

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 5
Current: £7,334 GBP|Low: £3,499 GBP|High: £7,334 GBP|Avg: £4,709 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 9£3,499 GBP
Retailer 8£3,761 GBP
Retailer 6£3,972 GBP
Retailer 10£3,972 GBP
Retailer 2£4,254 GBP
Retailer 4£4,276 GBP
Retailer 7£4,584 GBP
Retailer 3£4,716 GBP
Retailer 5£6,442 GBP
NZ Jewellers£7,334 GBP

40 data points across 10 retailers

10 retailers£3,499 GBP to £7,334 GBP

B+
Cheapest Retailer
-
£3,499 GBP
B+
Retailer 2
-
£3,761 GBP
View
B
Retailer 3
-
£3,972 GBP
View
B
Retailer 4
-
£3,972 GBP
View
B
Retailer 5
-
£4,254 GBP
View
B
Retailer 6
-
£4,276 GBP
View
B
Retailer 7
-
£4,584 GBP
View
B
Retailer 8
-
£4,716 GBP
View
B
Retailer 9
-
£6,442 GBP
View
Most Expensive
B
NZ Jewellers
4bdff83f-f179-46c7-97ab-fbb2609fd2ca · Nov 5
£7,334 GBP
$9,816 USD
View
9 more retailers have this diamond
Prices start from £3,499 GBPSave up to £3,835 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 Oval
£3,499 GBP