Oval|Natural|GIA

1.21ct I SI1 Oval Natural Diamond

GD • I/SI1 • GIA 7501790257

Certificate GIA 7501790257

Diamond specifications and retailer prices

From £2,631 GBP
As of November 5, 2026
Save £3,119 GBP (54%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £5,750 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 7501790257. Listed at 16 retailers as of November 5, 2026, with prices from £2,631 to £5,750, a £3,119 spread on the same certified stone. NZ Jewellers lists it at £5,750. 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
I
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 7501790257
Dimensions8.33 × 5.94 × 3.74 mm
L/W Ratio1.40
Top View
8.33 mm5.94 mm1.21 ctI / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 7501790257
Side View
Table 58.0%CrownGirdle: ThickPavilionCulet: NoneDepth 62.9%

Caratlytics Score

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

Price History

Last verified: Nov 5
Current: £3,714 GBP|Low: £2,300 GBP|High: £5,319 GBP|Avg: £3,460 GBP|+2.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 5£2,682 GBP
Retailer 6£2,760 GBP
Retailer 9£2,850 GBP
Retailer 8£2,990 GBP
Retailer 2£3,323 GBP
Retailer 7£3,520 GBP
Retailer 1£3,714 GBP
Retailer 3£4,027 GBP
Retailer 4£5,242 GBP

46 data points across 9 retailers

16 retailers£2,631 GBP to £5,750 GBP

B
Cheapest Retailer
-
£2,631 GBP
B
Retailer 2
-
£2,682 GBP
View
B
Retailer 3
-
£2,760 GBP
View
Final sale: no returns
B
Retailer 4
-
£2,808 GBP
View
B
Retailer 5
-
£2,850 GBP
View
Retailer 6
-
£2,990 GBP
View
Price last confirmed 8 days ago
B
Retailer 7
-
£2,990 GBP
View
B
Retailer 8
-
£2,990 GBP
View
B
Retailer 9
-
£3,323 GBP
View
B
Retailer 10
-
£3,450 GBP
View
B
Retailer 11
-
£3,471 GBP
View
Retailer 12
-
£3,520 GBP
View
Price last confirmed 28 days ago
B
Retailer 13
-
£3,714 GBP
View
B
Retailer 14
-
£4,027 GBP
View
C
Retailer 15
-
£5,242 GBP
View
Most Expensive
C
NZ Jewellers
44005480-c846-4aca-be60-3817092a7812 · Nov 5
£5,750 GBP
$7,696 USD
View
15 more retailers have this diamond
Prices start from £2,631 GBPSave up to £3,119 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
£2,631 GBP