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Oval|Natural|GIA

1.21ct D SI2 Oval Natural Diamond

EX • D/SI2 • GIA 3515954805

Certificate GIA 3515954805

Diamond specifications and retailer prices

From £3,216 GBP
As of November 4, 2026
Save £3,592 GBP (53%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £6,808 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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 3515954805. Listed at 15 retailers as of November 4, 2026, with prices from £3,216 to £6,808, a £3,592 spread on the same certified stone. NZ Jewellers lists it at £6,808. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.21
Carat
D
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 3515954805
Dimensions8.51 × 6.04 × 3.77 mm
L/W Ratio1.41
Top View
8.51 mm6.04 mm1.21 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 3515954805
Side View
Table 62.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 62.4%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: £6,808 GBP|Low: £3,121 GBP|High: £6,808 GBP|Avg: £4,530 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
November 6, 2026
Retailer 3£3,216 GBP
Retailer 13£3,404 GBP
Retailer 4£3,433 GBP
Retailer 5£3,688 GBP
Retailer 6£3,688 GBP
Retailer 16£3,882 GBP
Retailer 10£3,933 GBP
Retailer 2£4,003 GBP
Retailer 14£4,132 GBP
Retailer 15£4,132 GBP
Retailer 7£4,256 GBP
Retailer 12£4,273 GBP
Retailer 9£4,580 GBP
Retailer 8£6,049 GBP
Retailer 11£6,466 GBP
NZ Jewellers£6,808 GBP

40 data points across 16 retailers

15 retailers£3,216 GBP to £6,808 GBP

B+
Cheapest Retailer
-
£3,216 GBP
B
Retailer 2
-
£3,404 GBP
View
Final sale: no returns
B+
Retailer 3
-
£3,433 GBP
View
B+
Retailer 4
-
£3,688 GBP
View
Retailer 5
-
£3,688 GBP
View
Price last confirmed 8 days ago
B
Retailer 6
-
£3,882 GBP
View
B+
Retailer 7
-
£3,933 GBP
View
B+
Retailer 8
-
£4,003 GBP
View
B
Retailer 9
-
£4,132 GBP
View
B
Retailer 10
-
£4,132 GBP
View
B
Retailer 11
-
£4,256 GBP
View
B
Retailer 12
-
£4,273 GBP
View
B
Retailer 13
-
£4,580 GBP
View
B
Retailer 14
-
£6,466 GBP
View
Most Expensive
B
NZ Jewellers
8d4dc544-c3ca-451f-8f49-6674b28496f8 · Nov 5
£6,808 GBP
$9,113 USD
View
14 more retailers have this diamond
Prices start from £3,216 GBPSave up to £3,592 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
£3,216 GBP