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Oval|Natural|GIA

1.21ct J SI2 Oval Natural Diamond

EX • J/SI2 • GIA 6531271489

Certificate GIA 6531271489

Diamond specifications and retailer prices

From £1,052 GBP
As of November 6, 2026
Save £2,461 GBP (70%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £3,513 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 J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6531271489. Listed at 13 retailers as of November 5, 2026, with prices from £1,052 to £3,513, a £2,461 spread on the same certified stone. NZ Jewellers lists it at £3,513. 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
J
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle35.3°
OriginNatural
Grading LabGIA
CertificateGIA 6531271489
Dimensions8.19 × 5.93 × 3.71 mm
L/W Ratio1.38
Top View
8.19 mm5.93 mm1.21 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6531271489
Side View
Table 57.0%CrownGirdle: STK-VTKPavilion 35.3°Culet: NoneDepth 62.4%

Caratlytics Score

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

Price History

Last verified: Nov 6
Current: £3,513 GBP|Low: £1,052 GBP|High: £3,631 GBP|Avg: £1,812 GBP|+11.1%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 12£1,052 GBP
Retailer 4£1,352 GBP
Retailer 11£1,357 GBP
Retailer 2£1,435 GBP
Retailer 10£1,440 GBP
Retailer 5£1,469 GBP
Retailer 9£1,507 GBP
Retailer 3£1,592 GBP
Retailer 6£1,946 GBP
Retailer 8£2,204 GBP
Retailer 7£2,516 GBP
NZ Jewellers£3,513 GBP

37 data points across 12 retailers

13 retailers£1,052 GBP to £3,513 GBP

A
Cheapest Retailer
-
£1,052 GBP
A
Retailer 2
-
£1,352 GBP
View
Final sale: no returns
A
Retailer 3
-
£1,357 GBP
View
A
Retailer 4
-
£1,435 GBP
View
A
Retailer 5
-
£1,440 GBP
View
A
Retailer 6
-
£1,469 GBP
View
B+
Retailer 7
-
£1,507 GBP
View
B+
Retailer 8
-
£1,592 GBP
View
B+
Retailer 9
-
£1,635 GBP
View
B+
Retailer 10
-
£1,946 GBP
View
B+
Retailer 11
-
£2,204 GBP
View
B
Retailer 12
-
£2,516 GBP
View
Most Expensive
C
NZ Jewellers
c9ecb024-0302-41f8-b42a-26553e9f1829 · Nov 5
£3,513 GBP
$4,702 USD
View
12 more retailers have this diamond
Prices start from £1,052 GBPSave up to £2,461 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
£1,052 GBP