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Oval|Natural|GIA

1.21ct D SI2 Oval Natural Diamond

EX • D/SI2 • GIA 1565013937

Certificate GIA 1565013937

Diamond specifications and retailer prices

From £1,644 GBP
As of November 6, 2026
Save £2,913 GBP (64%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £4,557 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 1565013937. Listed at 7 retailers as of November 5, 2026, with prices from £1,644 to £4,557, a £2,913 spread on the same certified stone. NZ Jewellers lists it at £4,557. 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 1565013937
Dimensions8.27 × 5.91 × 3.79 mm
L/W Ratio1.40
Girdle conditionVery Thick
Top View
8.27 mm5.91 mm1.21 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 1565013937
Side View
Table 59.0%CrownGirdle: Slightly ThickPavilionCulet: NoneDepth 64.2%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 6
Current: £4,557 GBP|Low: £1,629 GBP|High: £4,724 GBP|Avg: £2,639 GBP|-3.5%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 2£1,644 GBP
Retailer 7£1,750 GBP
Retailer 6£1,952 GBP
Retailer 3£2,307 GBP
Retailer 5£2,551 GBP
Retailer 4£3,635 GBP
NZ Jewellers£4,557 GBP

37 data points across 7 retailers

7 retailers£1,644 GBP to £4,557 GBP

A
Cheapest Retailer
-
£1,644 GBP
A
Retailer 2
-
£1,750 GBP
View
Final sale: no returns
A
Retailer 3
-
£1,952 GBP
View
A
Retailer 4
-
£2,307 GBP
View
A
Retailer 5
-
£2,551 GBP
View
B+
Retailer 6
-
£3,635 GBP
View
Most Expensive
B
NZ Jewellers
21ac0ada-44dd-429a-aed4-f751d6810a5f · Nov 5
£4,557 GBP
$6,099 USD
View
6 more retailers have this diamond
Prices start from £1,644 GBPSave up to £2,913 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
£1,644 GBP