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Oval|Natural|IGI

1.21ct I SI1 Oval Natural Diamond

VG • I/SI1 • IGI 762558410

Shape and cutting style on the report: Oval brilliant

Certificate IGI 762558410

Diamond specifications and retailer prices

From £1,539 GBP
As of November 1, 2026
Save £2,162 GBP (58%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £3,701 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 762558410. Listed at 16 retailers as of November 1, 2026, with prices from £1,539 to £3,701, a £2,162 spread on the same certified stone. NZ Jewellers lists it at £3,701. 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

1.21
Carat
I
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40°
Pavilion angle36.2°
OriginNatural
Grading LabIGI
CertificateIGI 762558410
Dimensions8.40 × 5.95 × 3.58 mm
L/W Ratio1.41
Girdle conditionFaceted
Culet sizePointed
Top View
8.40 mm5.95 mm1.21 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 762558410
Side View
Table 57.0%Crown 40°Girdle: STK-THKPavilion 36.2°Culet: NoneDepth 60.2%

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: £1,957 GBP|Low: £1,498 GBP|High: £3,139 GBP|Avg: £1,991 GBP|+3.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 4£1,539 GBP
Retailer 6£1,633 GBP
Retailer 7£1,767 GBP
Retailer 9£1,771 GBP
Retailer 8£1,863 GBP
Retailer 1£1,957 GBP
Retailer 2£2,161 GBP
Retailer 3£2,209 GBP
Retailer 5£3,101 GBP

45 data points across 9 retailers

16 retailers£1,539 GBP to £3,701 GBP

A
Cheapest Retailer
-
£1,539 GBP
A
Retailer 2
-
£1,599 GBP
View
A
Retailer 3
-
£1,633 GBP
View
Final sale: no returns
B+
Retailer 4
-
£1,767 GBP
View
B+
Retailer 5
-
£1,771 GBP
View
Retailer 6
-
£1,771 GBP
View
Price last confirmed 8 days ago
B+
Retailer 7
-
£1,852 GBP
View
B+
Retailer 8
-
£1,863 GBP
View
B+
Retailer 9
-
£1,874 GBP
View
B+
Retailer 10
-
£1,957 GBP
View
Retailer 11
-
£2,043 GBP
View
Price last confirmed 61 days ago
B+
Retailer 12
-
£2,043 GBP
View
B+
Retailer 13
-
£2,161 GBP
View
B+
Retailer 14
-
£2,209 GBP
View
B
Retailer 15
-
£3,101 GBP
View
Most Expensive
B
NZ Jewellers
380734b1-39e7-4292-8b8d-1531690d6954 · Nov 5
£3,701 GBP
$4,954 USD
View
15 more retailers have this diamond
Prices start from £1,539 GBPSave up to £2,162 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
£1,539 GBP