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Heart|Natural|GIA

1.40ct G SI1 Heart Natural Diamond

EX • G/SI1 • GIA 2427827871

Certificate GIA 2427827871

Diamond specifications and retailer prices

From $3,947 AUD
As of November 6, 2026
Save $4,493 AUD (53%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $8,440 AUD at MOH London · As of November 7, 2026
View at MOH London

About this 1.4ct natural heart diamond

This 1.4ct natural heart sits in the one-and-a-quarter to one-and-a-half carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2427827871. Listed at 17 retailers as of November 6, 2026, with prices from $3,947 to $8,440, a $4,493 spread on the same certified stone. MOH London lists it at $8,440. 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
G
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.92°
Pavilion angle54.71°
OriginNatural
Grading LabGIA
CertificateGIA 2427827871
Dimensions6.41 × 5.97 × 4.17 mm
L/W Ratio1.07
Top View
6.41 mm5.97 mm1.40 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2427827871
Side View
Table 62.0%Crown 41.92°Girdle: MED-THKPavilion 54.71°Culet: NoneDepth 69.7%

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: $8,440 AUD|Low: $3,947 AUD|High: $8,587 AUD|Avg: $5,557 AUD|-1.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 7, 2026
Retailer 3$3,947 AUD
Retailer 8$3,967 AUD
Retailer 10$4,682 AUD
Retailer 7$4,732 AUD
Retailer 2$5,250 AUD
Retailer 5$5,512 AUD
Retailer 9$5,712 AUD
Retailer 4$5,906 AUD
Retailer 6$6,193 AUD
MOH London$8,440 AUD

30 data points across 10 retailers

17 retailers$3,947 AUD to $8,440 AUD

A
Cheapest Retailer
-
$3,947 AUD
A
Retailer 2
-
$3,967 AUD
View
A
Retailer 3
-
$4,504 AUD
View
A
Retailer 4
-
$4,682 AUD
View
Final sale: no returns
A
Retailer 5
-
$4,732 AUD
View
A
Retailer 6
-
$4,890 AUD
View
Retailer 7
-
$5,074 AUD
View
Price last confirmed 9 days ago
B+
Retailer 8
-
$5,081 AUD
View
A
Retailer 9
-
$5,250 AUD
View
B+
Retailer 10
-
$5,283 AUD
View
Retailer 11
-
$5,439 AUD
View
Price last confirmed 34 days ago
B+
Retailer 12
-
$5,512 AUD
View
B+
Retailer 13
-
$5,906 AUD
View
B+
Retailer 14
-
$6,193 AUD
View
B+
Retailer 15
-
$7,456 AUD
View
B
Retailer 16
-
$7,664 AUD
View
Most Expensive
B
MOH London
8D7273431 · Nov 7
$8,440 AUD
£4,566 GBP
View
16 more retailers have this diamond
Prices start from $3,947 AUDSave up to $4,493 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 Heart
$3,947 AUD