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Oval|Natural|GIA

1.21ct D SI2 Oval Natural Diamond

VG • D/SI2 • GIA 6551181357

Certificate GIA 6551181357

Diamond specifications and retailer prices

From £2,071 GBP
As of November 5, 2026
Save £2,887 GBP (58%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £4,958 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 D colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6551181357. Listed at 20 retailers as of November 5, 2026, with prices from £2,071 to £4,958, a £2,887 spread on the same certified stone. NZ Jewellers lists it at £4,958. 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
D
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.9°
Pavilion angle35.2°
OriginNatural
Grading LabGIA
CertificateGIA 6551181357
Dimensions8.37 × 5.98 × 3.65 mm
L/W Ratio1.40
Top View
8.37 mm5.98 mm1.21 ctD / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6551181357
Side View
Table 61.0%Crown 38.9°Girdle: THN-THKPavilion 35.2°Culet: NDepth 61.1%

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 5
Current: £4,958 GBP|Low: £2,071 GBP|High: £5,050 GBP|Avg: £2,940 GBP|-1.8%
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
Retailer 18
Retailer 19
Retailer 20
November 6, 2026
Retailer 12£2,071 GBP
Retailer 15£2,152 GBP
Retailer 4£2,288 GBP
Retailer 9£2,305 GBP
Retailer 11£2,378 GBP
Retailer 5£2,380 GBP
Retailer 19£2,578 GBP
Retailer 10£2,626 GBP
Retailer 18£2,663 GBP
Retailer 6£2,677 GBP
Retailer 2£2,798 GBP
Retailer 3£2,817 GBP
Retailer 17£2,817 GBP
Retailer 13£2,906 GBP
Retailer 20£2,936 GBP
Retailer 14£2,974 GBP
Retailer 7£3,281 GBP
Retailer 16£3,381 GBP
Retailer 8£4,847 GBP
NZ Jewellers£4,958 GBP

23 data points across 20 retailers

20 retailers£2,071 GBP to £4,958 GBP

A
Cheapest Retailer
-
£2,071 GBP
A
Retailer 2
-
£2,152 GBP
View
A
Retailer 3
-
£2,288 GBP
View
A
Retailer 4
-
£2,305 GBP
View
A
Retailer 5
-
£2,378 GBP
View
B+
Retailer 6
-
£2,380 GBP
View
Final sale: no returns
B+
Retailer 7
-
£2,578 GBP
View
Retailer 8
-
£2,626 GBP
View
Price last confirmed 12 days ago
B+
Retailer 9
-
£2,663 GBP
View
B+
Retailer 10
-
£2,677 GBP
View
B+
Retailer 11
-
£2,798 GBP
View
B+
Retailer 12
-
£2,817 GBP
View
B+
Retailer 13
-
£2,817 GBP
View
B+
Retailer 14
-
£2,906 GBP
View
B+
Retailer 15
-
£2,936 GBP
View
B+
Retailer 16
-
£2,974 GBP
View
B+
Retailer 17
-
£3,281 GBP
View
B
Retailer 18
-
£3,381 GBP
View
B
Retailer 19
-
£4,847 GBP
View
Most Expensive
B
NZ Jewellers
a20eb220-b167-467f-bf2b-3b34d68ea177 · Nov 5
£4,958 GBP
$6,636 USD
View
19 more retailers have this diamond
Prices start from £2,071 GBPSave up to £2,887 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
£2,071 GBP