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Marquise|Natural|IGI

1.00ct I IF Marquise Natural Diamond

EX • I/IF • IGI 749558500

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 749558500

Diamond specifications and retailer prices

From £2,492 GBP
As of November 1, 2026
Save £2,446 GBP (50%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £4,938 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1ct natural marquise diamond

This 1ct natural marquise sits in the classic one-carat band, graded I colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI 749558500. Listed at 16 retailers as of November 1, 2026, with prices from £2,492 to £4,938, a £2,446 spread on the same certified stone. NZ Jewellers lists it at £4,938. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.00
Carat
I
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle39.9°
OriginNatural
Grading LabIGI
CertificateIGI 749558500
Dimensions11.12 × 5.05 × 3.13 mm
L/W Ratio2.20
Girdle conditionFaceted
Culet sizePointed
Top View
11.12 mm5.05 mm1.00 ctI / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 749558500
Side View
Table 56.0%Crown 34.4°Girdle: MED-STKPavilion 39.9°Culet: NoneDepth 62.0%

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: £2,986 GBP|Low: £2,421 GBP|High: £4,797 GBP|Avg: £3,237 GBP|+0.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 7, 2026
Retailer 5£2,492 GBP
Retailer 7£2,616 GBP
Retailer 8£2,943 GBP
Retailer 1£2,986 GBP
Retailer 2£3,166 GBP
Retailer 6£3,331 GBP
Retailer 3£3,459 GBP
Retailer 4£4,727 GBP

42 data points across 8 retailers

16 retailers£2,492 GBP to £4,938 GBP

A
Cheapest Retailer
-
£2,492 GBP
A
Retailer 2
-
£2,516 GBP
View
A
Retailer 3
-
£2,616 GBP
View
Final sale: no returns
A
Retailer 4
-
£2,712 GBP
View
A
Retailer 5
-
£2,764 GBP
View
A
Retailer 6
-
£2,835 GBP
View
Retailer 7
-
£2,835 GBP
View
Price last confirmed 9 days ago
A
Retailer 8
-
£2,943 GBP
View
A
Retailer 9
-
£2,943 GBP
View
A
Retailer 10
-
£2,986 GBP
View
A
Retailer 11
-
£3,166 GBP
View
B+
Retailer 12
-
£3,270 GBP
View
B+
Retailer 13
-
£3,459 GBP
View
B+
Retailer 14
-
£3,632 GBP
View
B
Retailer 15
-
£4,727 GBP
View
Most Expensive
B
NZ Jewellers
11b366af-196a-4f81-96a8-773c4a18458e · Nov 5
£4,938 GBP
$6,609 USD
View
15 more retailers have this diamond
Prices start from £2,492 GBPSave up to £2,446 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
1.00ct Marquise
£2,492 GBP