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Round|Natural|IGI

1.40ct M SI2 Round Natural Diamond

EX • M/SI2 • IGI 669403397

Shape and cutting style on the report: Round brilliant

Certificate IGI 669403397

Diamond specifications and retailer prices

From $1,787 AUD
As of November 4, 2026
Save $2,914 AUD (62%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $4,701 AUD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.4ct natural round diamond

This 1.4ct natural round sits in the one-and-a-quarter to one-and-a-half carat band, graded M colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI 669403397. Listed at 11 retailers as of November 4, 2026, with prices from $1,787 to $4,701, a $2,914 spread on the same certified stone. NZ Jewellers lists it at $4,701. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.40
Carat
M
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36.3°
Pavilion angle40.7°
OriginNatural
Grading LabIGI
CertificateIGI 669403397
Dimensions7.05 × 7.07 × 4.45 mm
L/W Ratio1.00
Top View
7.05 mm7.07 mm1.40 ctM / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 669403397
Side View
Table 57.0%Crown 36.3°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 63.1%

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 4
Current: $4,701 AUD|Low: $1,787 AUD|High: $4,701 AUD|Avg: $2,354 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 5, 2026
Retailer 5$1,787 AUD
Retailer 3$1,927 AUD
Retailer 4$1,927 AUD
Retailer 8$1,927 AUD
Retailer 6$2,017 AUD
Retailer 7$2,053 AUD
Retailer 10$2,120 AUD
Retailer 9$2,224 AUD
Retailer 2$2,667 AUD
NZ Jewellers$4,701 AUD

39 data points across 10 retailers

11 retailers$1,787 AUD to $4,701 AUD

A
Cheapest Retailer
-
$1,787 AUD
Retailer 2
-
$1,927 AUD
View
Price last confirmed 8 days ago
B+
Retailer 3
-
$1,927 AUD
View
A
Retailer 4
-
$1,927 AUD
View
B+
Retailer 5
-
$2,017 AUD
View
B+
Retailer 6
-
$2,053 AUD
View
B+
Retailer 7
-
$2,120 AUD
View
B+
Retailer 8
-
$2,224 AUD
View
B+
Retailer 9
-
$2,667 AUD
View
Retailer 10
-
$4,701 AUD
View
Price last confirmed 66 days ago
Most Expensive
B
NZ Jewellers
19306c95-42e2-4e6a-9580-31da0659c227 · Nov 5
$4,701 AUD
$3,291 USD
View
10 more retailers have this diamond
Prices start from $1,787 AUDSave up to $2,914 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
1.40ct Round
$1,787 AUD