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Oval|Natural|GIA

1.21ct H SI2 Oval Natural Diamond

EX • H/SI2 • GIA 1525879072

Certificate GIA 1525879072

Diamond specifications and retailer prices

From £1,595 GBP
HK$16,700 HKD
As of November 1, 2026
Save £2,872 GBP (64%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £4,468 GBP at NZ Jewellers · As of October 27, 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 H 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 1525879072. Listed at 16 retailers as of October 27, 2026, with prices from £1,595 to £4,468, a £2,872 spread on the same certified stone. NZ Jewellers lists it at £4,468. 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
H
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1525879072
Dimensions8.29 × 5.92 × 3.80 mm
L/W Ratio1.40
Girdle conditionFaceted
Key to symbols
Crystal, Feather, Cavity, Needle, Indented Natural, Natural
Top View
8.29 mm5.92 mm1.21 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1525879072
Side View
Table 61.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 64.2%

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 1
Current: £4,468 GBP|Low: £1,576 GBP|High: £4,468 GBP|Avg: £2,345 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 1, 2026
Retailer 10£1,595 GBP
Retailer 8£1,841 GBP
Retailer 5£1,914 GBP
Retailer 13£1,948 GBP
Retailer 4£1,972 GBP
Retailer 2£2,113 GBP
Retailer 3£2,137 GBP
Retailer 15£2,137 GBP
Retailer 7£2,215 GBP
Retailer 14£2,220 GBP
Retailer 6£2,243 GBP
Retailer 9£2,285 GBP
Retailer 16£2,466 GBP
Retailer 11£2,502 GBP
Retailer 12£3,593 GBP
NZ Jewellers£4,468 GBP

34 data points across 16 retailers

16 retailers£1,595 GBP to £4,468 GBP

A
Cheapest Retailer
-
£1,595 GBP
HK$16,700 HKD
A
Retailer 2
-
£1,841 GBP
$2,467 USD
View
A
Retailer 3
-
£1,914 GBP
$2,565 USD
View
A
Retailer 4
-
£1,948 GBP
$2,610 USD
View
B+
Retailer 5
-
£1,972 GBP
$2,642 USD
View
Final sale: no returns
B+
Retailer 6
-
£2,113 GBP
View
B+
Retailer 7
-
£2,137 GBP
$2,863 USD
View
Retailer 8
-
£2,137 GBP
$2,863 USD
View
Price last confirmed 7 days ago
B+
Retailer 9
-
£2,215 GBP
SGD 4,010 SGD
View
Retailer 10
-
£2,220 GBP
$2,974 USD
View
Price last confirmed 7 days ago
B+
Retailer 11
-
£2,243 GBP
$3,005 USD
View
B+
Retailer 12
-
£2,285 GBP
View
B+
Retailer 13
-
£2,466 GBP
$3,304 USD
View
B+
Retailer 14
-
£2,502 GBP
€3,193 EUR
View
B
Retailer 15
-
£3,593 GBP
View
Most Expensive
B
NZ Jewellers
3c57143c-3695-4534-bee0-104303e4783b · Oct 27
£4,468 GBP
$5,986 USD
View
15 more retailers have this diamond
Prices start from £1,595 GBPSave up to £2,872 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
£1,595 GBP