Heart|Natural|GIA

1.40ct I SI1 Heart Natural Diamond

VG • I/SI1 • GIA 7558001405

Certificate GIA 7558001405

Diamond specifications and retailer prices

From $4,609 AUD
As of November 5, 2026
Save $4,525 AUD (50%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $9,738 AUD at NZ Jewellers · As of September 28, 2026
View at NZ Jewellers

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 I colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 7558001405. Listed at 21 retailers as of November 5, 2026, with a 98% 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

1.40
Carat
I
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36.7°
Pavilion angle40.9°
OriginNatural
Grading LabGIA
CertificateGIA 7558001405
Dimensions7.72 × 6.99 × 4.56 mm
L/W Ratio1.10
Culet sizeNone
Key to symbols
Twinning Wisp, Feather
Top View
7.72 mm6.99 mm1.40 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7558001405
Side View
Table 59.0%Crown 36.7°Girdle: MED-THKPavilion 40.9°Culet: NoneDepth 59.1%

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 5
Current: $9,566 AUD|Low: $4,585 AUD|High: $9,738 AUD|Avg: $6,112 AUD|-1.8%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
November 7, 2026
Retailer 14$4,609 AUD
Retailer 6$4,874 AUD
Retailer 16$4,929 AUD
Retailer 18$5,068 AUD
Retailer 17$5,261 AUD
Retailer 5$5,491 AUD
Retailer 8$5,491 AUD
Retailer 12$5,682 AUD
Retailer 15$5,702 AUD
Retailer 10$5,704 AUD
Retailer 7$5,778 AUD
Retailer 2$5,841 AUD
Retailer 4$5,852 AUD
Retailer 3$5,881 AUD
Retailer 9$6,335 AUD
Retailer 13$6,702 AUD
Retailer 11$9,134 AUD
NZ Jewellers$9,566 AUD

46 data points across 18 retailers

21 retailers$4,609 AUD to $9,134 AUD

A
Cheapest Retailer
-
$4,609 AUD
B+
Retailer 2
-
$4,874 AUD
View
B+
Retailer 3
-
$4,929 AUD
View
B+
Retailer 4
-
$5,068 AUD
View
Final sale: no returns
B+
Retailer 5
-
$5,261 AUD
View
Retailer 6
-
$5,491 AUD
View
Price last confirmed 12 days ago
Retailer 7
-
$5,491 AUD
View
Price last confirmed 13 days ago
Retailer 8
-
$5,590 AUD
View
Price last confirmed 40 days ago
B+
Retailer 9
-
$5,682 AUD
View
Retailer 10
-
$5,702 AUD
View
Price last confirmed 13 days ago
B+
Retailer 11
-
$5,704 AUD
View
B
Retailer 12
-
$5,778 AUD
View
B
Retailer 13
-
$5,841 AUD
View
B
Retailer 14
-
$5,852 AUD
View
Retailer 15
-
$5,881 AUD
View
Price last confirmed 30 days ago
Retailer 16
-
$6,335 AUD
View
Price last confirmed 11 days ago
Retailer 17
-
$6,450 AUD
View
Price last confirmed 39 days ago
B
Retailer 18
-
$6,702 AUD
View
B
Retailer 19
-
$9,134 AUD
View
Retailer 20
-
$9,566 AUD
View
Price last confirmed 11 days ago
Most Expensive
NZ Jewellers
7941e8b7-e584-4ce9-a80b-8fbd4869c419 · Sep 28
$9,738 AUD
$6,691 USD
View
Price last confirmed 40 days ago
20 more retailers have this diamond
Prices start from $4,609 AUDSave up to $4,525 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
$4,609 AUD