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Oval|Natural|GIA

1.21ct I SI1 Oval Natural Diamond

VG • I/SI1 • GIA 1547608935

Certificate GIA 1547608935

Diamond specifications and retailer prices

From £1,870 GBP
As of November 4, 2026
Save £2,282 GBP (55%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £4,152 GBP at MOH London · As of November 4, 2026
View at MOH London

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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 1547608935. Listed at 15 retailers as of November 4, 2026, with prices from £1,870 to £4,152, a £2,282 spread on the same certified stone. MOH London lists it at £4,152. 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
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1547608935
Dimensions8.23 × 5.87 × 3.71 mm
L/W Ratio1.40
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Knot
Top View
8.23 mm5.87 mm1.21 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1547608935
Side View
Table 58.0%CrownGirdle: VTK-ETKPavilionCulet: NoneDepth 63.2%

Caratlytics Score

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

Price History

Last verified: Nov 4
Current: £4,152 GBP|Low: £1,870 GBP|High: £4,214 GBP|Avg: £2,674 GBP|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 11£1,870 GBP
Retailer 10£2,164 GBP
Retailer 6£2,226 GBP
Retailer 9£2,327 GBP
Retailer 3£2,454 GBP
Retailer 5£2,474 GBP
Retailer 7£2,474 GBP
Retailer 4£2,601 GBP
Retailer 2£2,760 GBP
Retailer 8£3,627 GBP
MOH London£4,152 GBP

32 data points across 11 retailers

15 retailers£1,870 GBP to £4,152 GBP

A
Cheapest Retailer
-
£1,870 GBP
B+
Retailer 2
-
£2,164 GBP
View
B+
Retailer 3
-
£2,226 GBP
View
B+
Retailer 4
-
£2,327 GBP
View
B
Retailer 5
-
£2,454 GBP
View
B
Retailer 6
-
£2,474 GBP
View
B
Retailer 7
-
£2,474 GBP
View
B
Retailer 8
-
£2,504 GBP
View
B
Retailer 9
-
£2,592 GBP
View
B
Retailer 10
-
£2,592 GBP
View
B
Retailer 11
-
£2,601 GBP
View
B
Retailer 12
-
£2,675 GBP
View
B
Retailer 13
-
£2,760 GBP
View
B
Retailer 14
-
£3,627 GBP
View
Most Expensive
B
MOH London
AA10C2B64 · Nov 4
£4,152 GBP
View
14 more retailers have this diamond
Prices start from £1,870 GBPSave up to £2,282 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
£1,870 GBP