CaratHunter
Plans
Marquise|Natural|IGI

1.01ct I SI1 Marquise Natural Diamond

VG • I/SI1 • IGI 803629020

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 803629020

Diamond specifications and retailer prices

From $2,937 AUD
As of November 5, 2026
Save $2,758 AUD (48%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $7,004 AUD at NZ Jewellers · As of September 29, 2026
View at NZ Jewellers

About this 1.01ct natural marquise diamond

This 1.01ct natural marquise sits in the classic one-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 803629020. Listed at 18 retailers as of November 2, 2026, with a 94% 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
I
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.2°
Pavilion angle40.9°
OriginNatural
Grading LabIGI
CertificateIGI 803629020
Dimensions9.75 × 5.17 × 3.34 mm
L/W Ratio1.89
Girdle conditionFaceted
Top View
9.75 mm5.17 mm1.01 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 803629020
Side View
Table 60.0%Crown 39.2°Girdle: STK-THKPavilion 40.9°Culet: NoneDepth 64.6%

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 5
Current: $3,151 AUD|Low: $2,937 AUD|High: $5,938 AUD|Avg: $3,799 AUD|-4.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 5, 2026
Retailer 12$2,937 AUD
Retailer 3$3,000 AUD
Retailer 1$3,151 AUD
Retailer 11$3,176 AUD
Retailer 7$3,257 AUD
Retailer 4$3,350 AUD
Retailer 2$3,418 AUD
Retailer 10$3,450 AUD
Retailer 6$3,594 AUD
Retailer 5$3,967 AUD
Retailer 8$4,044 AUD
Retailer 9$5,695 AUD

34 data points across 12 retailers

18 retailers$2,937 AUD to $5,695 AUD

A
Cheapest Retailer
-
$2,937 AUD
A
Retailer 2
-
$3,000 AUD
View
Final sale: no returns
A
Retailer 3
-
$3,151 AUD
View
B+
Retailer 4
-
$3,176 AUD
View
B+
Retailer 5
-
$3,257 AUD
View
Retailer 6
-
$3,350 AUD
View
Price last confirmed 7 days ago
Retailer 7
-
$3,350 AUD
View
Price last confirmed 35 days ago
Retailer 8
-
$3,350 AUD
View
Price last confirmed 20 days ago
B+
Retailer 9
-
$3,418 AUD
View
B+
Retailer 10
-
$3,450 AUD
View
Retailer 11
-
$3,504 AUD
View
Price last confirmed 35 days ago
B+
Retailer 12
-
$3,594 AUD
View
Retailer 13
-
$3,866 AUD
View
Price last confirmed 51 days ago
Retailer 14
-
$3,866 AUD
View
Price last confirmed 37 days ago
B+
Retailer 15
-
$3,967 AUD
View
B+
Retailer 16
-
$4,044 AUD
View
B
Retailer 17
-
$5,695 AUD
View
Most Expensive
NZ Jewellers
f17c358e-89c4-4a37-a46d-cfeeec25a26e · Sep 29
$7,004 AUD
$4,903 USD
View
Price last confirmed 37 days ago
17 more retailers have this diamond
Prices start from $2,937 AUDSave up to $2,758 AUD

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
$2,937 AUD