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Oval|Natural|IGI

1.23ct H SI2 Oval Natural Diamond

VG • H/SI2 • IGI 762534421

Shape and cutting style on the report: Oval brilliant

Certificate IGI 762534421

Diamond specifications and retailer prices

From £1,192 GBP
As of November 6, 2026
Save £2,064 GBP (63%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £3,355 GBP at NZ Jewellers · As of October 20, 2026
View at NZ Jewellers

About this 1.23ct natural oval diamond

This 1.23ct natural oval sits in the classic one-carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI 762534421. Listed at 14 retailers as of November 5, 2026, with a 173% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.23
Carat
H
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37°
Pavilion angle40.8°
OriginNatural
Grading LabIGI
CertificateIGI 762534421
Dimensions8.24 × 6.06 × 3.89 mm
L/W Ratio1.36
Girdle conditionFaceted
Culet sizePointed
Top View
8.24 mm6.06 mm1.23 ctH / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 762534421
Side View
Table 61.0%Crown 37°Girdle: MED-THKPavilion 40.8°Culet: NoneDepth 64.2%

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: £3,257 GBP|Low: £1,164 GBP|High: £3,355 GBP|Avg: £1,720 GBP|-2.9%
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
November 6, 2026
Retailer 6£1,192 GBP
Retailer 2£1,207 GBP
Retailer 7£1,287 GBP
Retailer 13£1,335 GBP
Retailer 3£1,348 GBP
Retailer 5£1,375 GBP
Retailer 11£1,397 GBP
Retailer 4£1,399 GBP
Retailer 8£1,411 GBP
Retailer 10£1,511 GBP
Retailer 9£1,778 GBP
Retailer 12£2,339 GBP
NZ Jewellers£3,257 GBP

43 data points across 13 retailers

14 retailers£1,192 GBP to £3,257 GBP

A
Cheapest Retailer
-
£1,192 GBP
A
Retailer 2
-
£1,207 GBP
View
Final sale: no returns
A
Retailer 3
-
£1,287 GBP
View
A
Retailer 4
-
£1,335 GBP
View
A
Retailer 5
-
£1,348 GBP
View
Retailer 6
-
£1,375 GBP
View
Price last confirmed 8 days ago
A
Retailer 7
-
£1,397 GBP
View
B+
Retailer 8
-
£1,399 GBP
View
A
Retailer 9
-
£1,411 GBP
View
A
Retailer 10
-
£1,511 GBP
View
A
Retailer 11
-
£1,778 GBP
View
B+
Retailer 12
-
£2,339 GBP
View
B
Retailer 13
-
£3,257 GBP
View
Most Expensive
NZ Jewellers
bc56064d-88fc-460d-b3a7-fe09d6ac0031 · Oct 20
£3,355 GBP
$4,491 USD
View
Price last confirmed 16 days ago
13 more retailers have this diamond
Prices start from £1,192 GBPSave up to £2,064 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
1.23ct Oval
£1,192 GBP