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Round|Natural|GIA

1.40ct M SI1 Round Natural Diamond

EX • M/SI1 • GIA 6542434212

Certificate GIA 6542434212

Diamond specifications and retailer prices

From $3,328 AUD
As of November 5, 2026
Save $803 AUD (19%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $7,607 AUD at NZ Jewellers · As of September 12, 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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6542434212. Listed at 11 retailers as of November 5, 2026, with a relatively tight 24% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6542434212
Dimensions7.15 × 7.10 × 4.47 mm
L/W Ratio1.01
Star length50%
Top View
7.15 mm7.10 mm1.40 ctM / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6542434212
Side View
Table 56.0%Crown 36.5°GirdlePavilion 40.8°Culet: NoneDepth 62.8%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 5
Current: $4,064 AUD|Low: $3,316 AUD|High: $4,421 AUD|Avg: $3,701 AUD|-6.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 5, 2026
Retailer 5$3,316 AUD
Retailer 3$3,328 AUD
Retailer 4$3,638 AUD
Retailer 1$4,064 AUD
Retailer 2$4,131 AUD

25 data points across 5 retailers

11 retailers$3,328 AUD to $4,131 AUD

B+
Cheapest Retailer
-
$3,328 AUD
Retailer 2
-
$3,330 AUD
View
Price last confirmed 29 days ago
Retailer 3
-
$3,330 AUD
View
Price last confirmed 29 days ago
Retailer 4
-
$3,484 AUD
View
Price last confirmed 38 days ago
Retailer 5
-
$3,638 AUD
View
Price last confirmed 53 days ago
Retailer 6
-
$3,843 AUD
View
Price last confirmed 38 days ago
B
Retailer 7
-
$4,064 AUD
View
B
Retailer 8
-
$4,131 AUD
View
Retailer 9
-
$4,198 AUD
View
Price last confirmed 61 days ago
Retailer 10
-
$6,961 AUD
View
Price last confirmed 41 days ago
Most Expensive
NZ Jewellers
bedc1264-9bd6-4184-a4a2-8c4d200a3abd · Sep 12
$7,607 AUD
$5,325 USD
View
Price last confirmed 54 days ago
10 more retailers have this diamond
Prices start from $3,328 AUDSave up to $803 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.

B+
1.40ct Round
$3,328 AUD