Oval|Natural|GIA

1.21ct F SI1 Oval Natural Diamond

GD • F/SI1 • GIA 7536671019

Certificate GIA 7536671019

Diamond specifications and retailer prices

From £2,911 GBP
As of November 6, 2026
Save £3,029 GBP (51%) vs most expensive(unlock to see where)
17 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 standard cut grade stated by the retailer rather than the lab and certified by GIA 7536671019. Listed at 17 retailers as of November 5, 2026, with prices from £2,911 to £5,940, a £3,029 spread on the same certified stone. NZ Jewellers lists it at £5,940. 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
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7536671019
Dimensions8.33 × 6.02 × 3.79 mm
L/W Ratio1.38
Top View
8.33 mm6.02 mm1.21 ctF / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 7536671019
Side View
Table 60.0%CrownGirdle: SLI-VTKPavilionCulet: NoneDepth 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 6
Current: £5,940 GBP|Low: £2,911 GBP|High: £6,200 GBP|Avg: £3,774 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
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
November 6, 2026
Retailer 3£2,911 GBP
Retailer 6£2,973 GBP
Retailer 15£3,037 GBP
Retailer 7£3,147 GBP
Retailer 14£3,224 GBP
Retailer 2£3,307 GBP
Retailer 10£3,357 GBP
Retailer 4£3,410 GBP
Retailer 16£3,410 GBP
Retailer 17£3,410 GBP
Retailer 8£3,567 GBP
Retailer 13£3,857 GBP
Retailer 9£3,878 GBP
Retailer 5£3,934 GBP
Retailer 11£4,160 GBP
Retailer 12£5,416 GBP
NZ Jewellers£5,940 GBP

32 data points across 17 retailers

17 retailers£2,911 GBP to £5,940 GBP

B+
Cheapest Retailer
-
£2,911 GBP
B
Retailer 2
-
£2,973 GBP
View
B
Retailer 3
-
£3,037 GBP
View
B
Retailer 4
-
£3,147 GBP
View
Final sale: no returns
B
Retailer 5
-
£3,224 GBP
View
B
Retailer 6
-
£3,307 GBP
View
B
Retailer 7
-
£3,357 GBP
View
Retailer 8
-
£3,410 GBP
View
Price last confirmed 8 days ago
B
Retailer 9
-
£3,410 GBP
View
B
Retailer 10
-
£3,410 GBP
View
B
Retailer 11
-
£3,567 GBP
View
B
Retailer 12
-
£3,857 GBP
View
Retailer 13
-
£3,878 GBP
View
Price last confirmed 28 days ago
B
Retailer 14
-
£3,934 GBP
View
B
Retailer 15
-
£4,160 GBP
View
B
Retailer 16
-
£5,416 GBP
View
Most Expensive
C
NZ Jewellers
e3f3493a-d22b-4b3f-b366-fe89df1b7f60 · Nov 5
£5,940 GBP
$7,951 USD
View
16 more retailers have this diamond
Prices start from £2,911 GBPSave up to £3,029 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
£2,911 GBP