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Round|Natural|GIA

1.40ct D SI2 Round Natural Diamond

EX • D/SI2

Diamond specifications and retailer prices

From $6,800 AUD
CA$6,635 CAD
As of October 30, 2026
Save $6,226 AUD (48%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $13,026 AUD at NZ Jewellers · As of October 30, 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 D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA. Listed at 10 retailers as of October 30, 2026, with prices from $6,800 to $13,026, a $6,226 spread on the same certified stone. NZ Jewellers lists it at $13,026. 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
D
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
Dimensions7.12 × 7.15 × 4.48 mm
L/W Ratio1.00
Top View
7.12 mm7.15 mm1.40 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA
Side View
Table 57.0%CrownGirdle: MediumPavilionCulet: NoneDepth 62.8%

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: Oct 30
Current: $13,026 AUD|Low: $6,800 AUD|High: $13,770 AUD|Avg: $8,253 AUD|-5.4%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 30, 2026
Retailer 2$6,800 AUD
Retailer 4$7,055 AUD
Retailer 5$7,055 AUD
Retailer 6$7,055 AUD
Retailer 7$7,115 AUD
Retailer 9$7,424 AUD
Retailer 3$7,516 AUD
Retailer 8$7,905 AUD
Retailer 10$8,142 AUD
NZ Jewellers$13,026 AUD

19 data points across 10 retailers

10 retailers$6,800 AUD to $13,026 AUD

A
Cheapest Retailer
-
$6,800 AUD
CA$6,635 CAD
A
Retailer 2
-
$7,055 AUD
$4,956 USD
View
A
Retailer 3
-
$7,055 AUD
$4,956 USD
View
A
Retailer 4
-
$7,055 AUD
$4,956 USD
View
A
Retailer 5
-
$7,115 AUD
$4,998 USD
View
A
Retailer 6
-
$7,424 AUD
$5,215 USD
View
A
Retailer 7
-
$7,516 AUD
£4,157 GBP
View
B+
Retailer 8
-
$7,905 AUD
$5,553 USD
View
B+
Retailer 9
-
$8,142 AUD
$5,719 USD
View
Most Expensive
B
NZ Jewellers
d81915fb-9f7f-4cb7-b246-b38142635962 · Oct 30
$13,026 AUD
$9,150 USD
View
9 more retailers have this diamond
Prices start from $6,800 AUDSave up to $6,226 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
$6,800 AUD