CaratHunter
Plans
Marquise|Natural|IGI

1.00ct I SI2 Marquise Natural Diamond

VG • I/SI2 • IGI 825618962

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 825618962

Diamond specifications and retailer prices

From £1,005 GBP
As of November 6, 2026
Save £2,287 GBP (69%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £3,292 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 SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI 825618962. Listed at 14 retailers as of November 5, 2026, with prices from £1,005 to £3,292, a £2,287 spread on the same certified stone. NZ Jewellers lists it at £3,292. 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

1.00
Carat
I
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.2°
Pavilion angle32°
OriginNatural
Grading LabIGI
CertificateIGI 825618962
Dimensions13.21 × 4.58 × 2.67 mm
L/W Ratio2.88
Girdle conditionFaceted
Culet sizeNone
Top View
13.21 mm4.58 mm1.00 ctI / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 825618962
Side View
Table 60.0%Crown 36.2°Girdle: STK-VTKPavilion 32°Culet: NoneDepth 58.3%

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 6
Current: £3,292 GBP|Low: £1,005 GBP|High: £3,292 GBP|Avg: £1,628 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
November 6, 2026
Retailer 2£1,005 GBP
Retailer 11£1,230 GBP
Retailer 10£1,349 GBP
Retailer 12£1,349 GBP
Retailer 9£1,412 GBP
Retailer 3£1,414 GBP
Retailer 4£1,452 GBP
Retailer 13£1,472 GBP
Retailer 8£1,483 GBP
Retailer 5£1,557 GBP
Retailer 6£1,712 GBP
Retailer 7£2,357 GBP
NZ Jewellers£3,292 GBP

46 data points across 13 retailers

14 retailers£1,005 GBP to £3,292 GBP

A
Cheapest Retailer
-
£1,005 GBP
B+
Retailer 2
-
£1,230 GBP
View
B+
Retailer 3
-
£1,349 GBP
View
Retailer 4
-
£1,349 GBP
View
Price last confirmed 8 days ago
B+
Retailer 5
-
£1,412 GBP
View
B+
Retailer 6
-
£1,414 GBP
View
B+
Retailer 7
-
£1,452 GBP
View
B+
Retailer 8
-
£1,472 GBP
View
B+
Retailer 9
-
£1,483 GBP
View
B+
Retailer 10
-
£1,557 GBP
View
Retailer 11
-
£1,668 GBP
View
Price last confirmed 61 days ago
B+
Retailer 12
-
£1,712 GBP
View
B
Retailer 13
-
£2,357 GBP
View
Most Expensive
C
NZ Jewellers
e48479fd-feb9-4893-b88b-db6eb0ab4328 · Nov 5
£3,292 GBP
$4,406 USD
View
13 more retailers have this diamond
Prices start from £1,005 GBPSave up to £2,287 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
£1,005 GBP