Marquise|Natural|IGI

0.91ct I SI1 Marquise Natural Diamond

VG • I/SI1 • IGI 815639079

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 815639079

Diamond specifications and retailer prices

From $1,558 USD
As of November 2, 2026
Save $2,287 USD (59%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $3,845 USD 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 815639079. Listed at 9 retailers as of October 30, 2026, with prices from $1,558 to $3,845, a $2,287 spread on the same certified stone. NZ Jewellers lists it at $3,845. 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
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.6°
Pavilion angle38.7°
OriginNatural
Grading LabIGI
CertificateIGI 815639079
Dimensions10.19 × 4.86 × 3.02 mm
L/W Ratio2.10
Girdle conditionFaceted
Top View
10.19 mm4.86 mm0.91 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 815639079
Side View
Table 62.0%Crown 36.6°Girdle: STK-THKPavilion 38.7°Culet: NoneDepth 62.1%

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: Nov 2
Current: $3,845 USD|Low: $1,558 USD|High: $3,929 USD|Avg: $2,221 USD|-2.1%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 8$1,558 USD
Retailer 7$1,576 USD
Retailer 6$1,649 USD
Retailer 9$1,722 USD
Retailer 5$1,725 USD
Retailer 2$2,094 USD
Retailer 4$2,776 USD
Retailer 3$3,042 USD
NZ Jewellers$3,845 USD

36 data points across 9 retailers

9 retailers$1,558 USD to $3,845 USD

A
Cheapest Retailer
-
$1,558 USD
A
Retailer 2
-
$1,576 USD
View
A
Retailer 3
-
$1,649 USD
View
B+
Retailer 4
-
$1,722 USD
View
B+
Retailer 5
-
$1,725 USD
View
B+
Retailer 6
-
$2,094 USD
€1,994 EUR
View
B
Retailer 7
-
$2,776 USD
£2,186 GBP
View
B
Retailer 8
-
$3,042 USD
£2,396 GBP
View
Most Expensive
C
NZ Jewellers
7d0b2ad4-02c3-44da-a43d-a356d0377b47 · Oct 30
$3,845 USD
View
8 more retailers have this diamond
Prices start from $1,558 USDSave up to $2,287 USD

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
$1,558 USD