Oval|Natural|GIA

1.21ct F SI1 Oval Natural Diamond

EX • F/SI1

Diamond specifications and retailer prices

From £2,618 GBP
As of November 6, 2026
Save £3,322 GBP (56%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £5,940 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 F 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 13 retailers as of November 5, 2026, with prices from £2,618 to £5,940, a £3,322 spread on the same certified stone. NZ Jewellers lists it at £5,940. 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
F
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
Dimensions8.04 × 5.90 × 3.79 mm
L/W Ratio1.36
Top View
8.04 mm5.90 mm1.21 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA
Side View
Table 60.0%CrownGirdle: MediumPavilionCulet: NoneDepth 64.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £5,940 GBP|Low: £2,589 GBP|High: £5,940 GBP|Avg: £3,366 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 3£2,618 GBP
Retailer 10£2,622 GBP
Retailer 6£3,007 GBP
Retailer 7£3,089 GBP
Retailer 8£3,089 GBP
Retailer 9£3,089 GBP
Retailer 11£3,123 GBP
Retailer 4£3,230 GBP
Retailer 2£3,307 GBP
Retailer 12£3,470 GBP
Retailer 5£3,564 GBP
NZ Jewellers£5,940 GBP

32 data points across 12 retailers

13 retailers£2,618 GBP to £5,940 GBP

B+
Cheapest Retailer
-
£2,618 GBP
B+
Retailer 2
-
£2,622 GBP
View
B
Retailer 3
-
£3,007 GBP
View
Retailer 4
-
£3,089 GBP
View
Price last confirmed 8 days ago
B+
Retailer 5
-
£3,089 GBP
View
B+
Retailer 6
-
£3,089 GBP
View
B+
Retailer 7
-
£3,123 GBP
View
B
Retailer 8
-
£3,230 GBP
View
B+
Retailer 9
-
£3,307 GBP
View
B
Retailer 10
-
£3,470 GBP
View
B
Retailer 11
-
£3,564 GBP
View
Retailer 12
-
£5,940 GBP
View
Price last confirmed 56 days ago
Most Expensive
B
NZ Jewellers
ad24ec50-af50-45fe-b57e-1277079f0dd2 · Nov 5
£5,940 GBP
$7,951 USD
View
12 more retailers have this diamond
Prices start from £2,618 GBPSave up to £3,322 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
£2,618 GBP