Marquise|Natural|IGI

1.01ct J SI1 Marquise Natural Diamond

VG • J/SI1 • IGI 735513858

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 735513858

Diamond specifications and retailer prices

From $1,142 USD
As of November 6, 2026
Save $4,402 USD (79%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $7,238 USD at MOH London · As of November 2, 2026
View at MOH London

About this 1.01ct natural marquise diamond

This 1.01ct natural marquise sits in the classic one-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 735513858. Listed at 12 retailers as of November 5, 2026, with a 385% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.01
Carat
J
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.7°
Pavilion angle41.1°
OriginNatural
Grading LabIGI
CertificateIGI 735513858
Dimensions10.20 × 5.12 × 3.28 mm
L/W Ratio1.99
Girdle conditionFaceted
Culet sizePointed
Top View
10.20 mm5.12 mm1.01 ctJ / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 735513858
Side View
Table 58.0%Crown 39.7°Girdle: THN-STKPavilion 41.1°Culet: NoneDepth 64.1%

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 6
Current: $7,238 USD|Low: $1,142 USD|High: $7,238 USD|Avg: $2,265 USD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 2$1,142 USD
Retailer 7$1,340 USD
Retailer 6$1,958 USD
Retailer 4$1,983 USD
Retailer 11$4,106 USD
Retailer 10$4,300 USD
Retailer 8$4,432 USD
Retailer 9$4,544 USD
Retailer 3$5,243 USD
Retailer 5$5,544 USD
MOH London$7,238 USD

38 data points across 11 retailers

12 retailers$1,142 USD to $5,544 USD

A
Cheapest Retailer
-
$1,142 USD
A
Retailer 2
-
$1,340 USD
View
B+
Retailer 3
-
$1,590 USD
View
B+
Retailer 4
-
$1,958 USD
View
B+
Retailer 5
-
$1,983 USD
View
C
Retailer 6
-
$4,106 USD
View
C
Retailer 7
-
$4,300 USD
View
C
Retailer 8
-
$4,432 USD
View
C
Retailer 9
-
$4,544 USD
View
C
Retailer 10
-
$5,243 USD
View
C
Retailer 11
-
$5,544 USD
View
Most Expensive
MOH London
22EB9631F · Nov 2
$7,238 USD
£5,699 GBP
View
Price under review
11 more retailers have this diamond
Prices start from $1,142 USDSave up to $4,402 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
1.01ct Marquise
$1,142 USD