CaratHunter
Plans
Heart|Natural|GIA

0.80ct H SI2 Heart Natural Diamond

EX • H/SI2 • GIA 6455416026

Certificate GIA 6455416026

Diamond specifications and retailer prices

From $1,023 AUD
As of November 6, 2026
Save $1,217 AUD (54%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $3,798 AUD at Queensmith · As of October 28, 2026
View at Queensmith

About this 0.8ct natural heart diamond

This 0.8ct natural heart sits in the just-under-one-carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6455416026. Listed at 15 retailers as of November 4, 2026, with a 119% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

0.80
Carat
H
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6455416026
Dimensions5.34 × 5.08 × 3.44 mm
L/W Ratio1.05
Top View
5.34 mm5.08 mm0.80 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6455416026
Side View
Table 62.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 67.8%

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: Nov 6
Current: $3,798 AUD|Low: $939 AUD|High: $3,808 AUD|Avg: $1,791 AUD|+3.5%
Queensmith
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 8$1,023 AUD
Retailer 5$1,106 AUD
Retailer 9$1,109 AUD
Retailer 7$1,332 AUD
Retailer 3$1,460 AUD
Retailer 6$1,495 AUD
Retailer 2$1,720 AUD
Retailer 4$2,240 AUD
Queensmith$3,798 AUD

43 data points across 9 retailers

15 retailers$1,023 AUD to $2,240 AUD

A
Cheapest Retailer
-
$1,023 AUD
Final sale: no returns
A
Retailer 2
-
$1,106 AUD
View
Retailer 3
-
$1,109 AUD
View
Price last confirmed 30 days ago
A
Retailer 4
-
$1,126 AUD
View
A
Retailer 5
-
$1,215 AUD
View
A
Retailer 6
-
$1,263 AUD
View
A
Retailer 7
-
$1,324 AUD
View
A
Retailer 8
-
$1,324 AUD
View
A
Retailer 9
-
$1,332 AUD
View
A
Retailer 10
-
$1,368 AUD
View
A
Retailer 11
-
$1,460 AUD
View
A
Retailer 12
-
$1,495 AUD
View
B+
Retailer 13
-
$1,720 AUD
View
B+
Retailer 14
-
$2,240 AUD
View
Most Expensive
Queensmith
6455416026 · Oct 28
$3,798 AUD
£2,055 GBP
View
Price last confirmed 9 days ago
14 more retailers have this diamond
Prices start from $1,023 AUDSave up to $1,217 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
0.80ct Heart
$1,023 AUD