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Marquise|Natural|IGI

0.91ct I SI1 Marquise Natural Diamond

VG • I/SI1 • IGI 841667413

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 841667413

Diamond specifications and retailer prices

From £948 GBP
SGD 1,720 SGD
As of October 31, 2026
Save £1,540 GBP (62%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £2,489 GBP at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 0.91ct natural marquise diamond

This 0.91ct natural marquise sits in the just-under-one-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 841667413. Listed at 9 retailers as of October 30, 2026, with prices from £948 to £2,489, a £1,540 spread on the same certified stone. NZ Jewellers lists it at £2,489. 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

0.91
Carat
I
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle41.1°
Pavilion angle41.5°
OriginNatural
Grading LabIGI
CertificateIGI 841667413
Dimensions9.91 × 4.93 × 3.21 mm
L/W Ratio2.01
Girdle conditionFaceted
Culet sizeNone
Top View
9.91 mm4.93 mm0.91 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 841667413
Side View
Table 61.0%Crown 41.1°Girdle: MED-THKPavilion 41.5°Culet: NoneDepth 65.1%

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: Oct 31
Current: £2,489 GBP|Low: £905 GBP|High: £2,549 GBP|Avg: £1,488 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 9£928 GBP
Retailer 5£948 GBP
Retailer 4£1,020 GBP
Retailer 7£1,068 GBP
Retailer 6£1,102 GBP
Retailer 3£1,389 GBP
Retailer 8£1,924 GBP
Retailer 2£1,963 GBP
NZ Jewellers£2,489 GBP

19 data points across 9 retailers

9 retailers£948 GBP to £2,489 GBP

Retailer 1
-
£928 GBP
$1,245 USD
Price last confirmed 8 days ago
A
Retailer 2
-
£948 GBP
SGD 1,720 SGD
View
A
Retailer 3
-
£1,020 GBP
$1,369 USD
View
A
Retailer 4
-
£1,068 GBP
$1,433 USD
View
A
Retailer 5
-
£1,102 GBP
$1,479 USD
View
B+
Retailer 6
-
£1,389 GBP
€1,775 EUR
View
B
Retailer 7
-
£1,924 GBP
View
B
Retailer 8
-
£1,963 GBP
View
Most Expensive
B
NZ Jewellers
13c37e89-edbb-469f-9fb6-4050b4f4f245 · Oct 30
£2,489 GBP
$3,340 USD
View
8 more retailers have this diamond
Prices start from £948 GBPSave up to £1,540 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
0.91ct Marquise
£948 GBP