Oval|Natural|GIA

1.21ct F SI1 Oval Natural Diamond

GD • F/SI1 • GIA 6552080899

Certificate GIA 6552080899

Diamond specifications and retailer prices

From £1,549 GBP
As of November 5, 2026
Save £2,117 GBP (58%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £4,569 GBP at NZ Jewellers · As of September 30, 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 standard cut grade stated by the retailer rather than the lab and certified by GIA 6552080899. Listed at 20 retailers as of November 4, 2026, with a 137% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
F
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 6552080899
Dimensions8.19 × 6.00 × 3.84 mm
L/W Ratio1.36
Top View
8.19 mm6.00 mm1.21 ctF / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 6552080899
Side View
Table 64.0%CrownGirdle: MED-THKPavilionCulet: NDepth 64.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: £2,129 GBP|Low: £1,549 GBP|High: £3,699 GBP|Avg: £2,240 GBP|+3.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
November 6, 2026
Retailer 14£1,549 GBP
Retailer 3£1,673 GBP
Retailer 11£1,709 GBP
Retailer 6£1,718 GBP
Retailer 7£1,792 GBP
Retailer 2£2,017 GBP
Retailer 16£2,017 GBP
Retailer 12£2,047 GBP
Retailer 9£2,084 GBP
Retailer 1£2,129 GBP
Retailer 10£2,163 GBP
Retailer 8£2,448 GBP
Retailer 5£2,456 GBP
Retailer 13£2,494 GBP
Retailer 15£2,501 GBP
Retailer 4£3,666 GBP

31 data points across 16 retailers

20 retailers£1,549 GBP to £3,666 GBP

A
Cheapest Retailer
-
£1,549 GBP
A
Retailer 2
-
£1,673 GBP
View
A
Retailer 3
-
£1,709 GBP
View
Final sale: no returns
A
Retailer 4
-
£1,718 GBP
View
A
Retailer 5
-
£1,792 GBP
View
Retailer 6
-
£1,980 GBP
View
Price last confirmed 40 days ago
A
Retailer 7
-
£2,017 GBP
View
A
Retailer 8
-
£2,017 GBP
View
A
Retailer 9
-
£2,047 GBP
View
Retailer 10
-
£2,056 GBP
View
Price last confirmed 39 days ago
B+
Retailer 11
-
£2,084 GBP
View
B+
Retailer 12
-
£2,129 GBP
View
B+
Retailer 13
-
£2,163 GBP
View
Retailer 14
-
£2,285 GBP
View
Price last confirmed 39 days ago
Retailer 15
-
£2,448 GBP
View
Price last confirmed 31 days ago
B+
Retailer 16
-
£2,456 GBP
View
B+
Retailer 17
-
£2,494 GBP
View
B+
Retailer 18
-
£2,501 GBP
View
B
Retailer 19
-
£3,666 GBP
View
Most Expensive
NZ Jewellers
ec24257b-5912-4723-ae7e-2407ce58b0b7 · Sep 30
£4,569 GBP
$6,116 USD
View
Price last confirmed 37 days ago
19 more retailers have this diamond
Prices start from £1,549 GBPSave up to £2,117 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 Oval
£1,549 GBP