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Marquise|Natural|IGI

1.21ct I IF Marquise Natural Diamond

VG • I/IF • IGI 809692830

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 809692830

Diamond specifications and retailer prices

From £2,251 GBP
As of November 7, 2026
Save £2,123 GBP (49%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £4,374 GBP at NZ Jewellers · As of November 3, 2026
View at NZ Jewellers

About this 1.21ct natural marquise diamond

This 1.21ct natural marquise sits in the classic one-carat band, graded I colour (near-colourless) and IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI 809692830. Listed at 6 retailers as of November 3, 2026, with prices from £2,251 to £4,374, a £2,123 spread on the same certified stone. NZ Jewellers lists it at £4,374. 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
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle41.2°
Pavilion angle36.8°
OriginNatural
Grading LabIGI
CertificateIGI 809692830
Dimensions10.40 × 5.64 × 3.35 mm
L/W Ratio1.84
Girdle conditionFaceted
Top View
10.40 mm5.64 mm1.21 ctI / IF
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 809692830
Side View
Table 62.0%Crown 41.2°Girdle: STK-THKPavilion 36.8°Culet: NoneDepth 59.4%

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 7
Current: £4,374 GBP|Low: £2,249 GBP|High: £4,441 GBP|Avg: £3,023 GBP|-1.5%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 7, 2026
Retailer 2£2,251 GBP
Retailer 7£2,346 GBP
Retailer 6£2,511 GBP
Retailer 5£2,514 GBP
Retailer 3£2,607 GBP
Retailer 4£4,176 GBP
NZ Jewellers£4,374 GBP

32 data points across 7 retailers

6 retailers£2,251 GBP to £4,374 GBP

A
Cheapest Retailer
-
£2,251 GBP
A
Retailer 2
-
£2,511 GBP
View
A
Retailer 3
-
£2,514 GBP
View
A
Retailer 4
-
£2,607 GBP
View
B+
Retailer 5
-
£4,176 GBP
View
Most Expensive
B+
NZ Jewellers
183f375d-a9ce-4100-9305-ab519e5c6a01 · Nov 3
£4,374 GBP
$5,855 USD
View
5 more retailers have this diamond
Prices start from £2,251 GBPSave up to £2,123 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 Marquise
£2,251 GBP