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Heart|Natural|GIA

0.85ct I SI1 Heart Natural Diamond

EX • I/SI1 • GIA 7542270922

Certificate GIA 7542270922

Diamond specifications and retailer prices

From $822 AUD
HK$4,500 HKD
As of November 1, 2026
Save $1,146 AUD (58%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $3,867 AUD at NZ Jewellers · As of September 25, 2026
View at NZ Jewellers

About this 0.85ct natural heart diamond

This 0.85ct natural heart sits in the just-under-one-carat band, graded I 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 7542270922. Listed at 14 retailers as of November 1, 2026, with a 139% 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

0.85
Carat
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Pavilion angle37.9°
OriginNatural
Grading LabGIA
CertificateGIA 7542270922
Dimensions5.78 × 6.44 × 3.85 mm
L/W Ratio1.11
Girdle conditionFaceted
Top View
5.78 mm6.44 mm0.85 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7542270922
Side View
Table 58.0%CrownGirdle: STK-VTKPavilion 37.9°Culet: NoneDepth 59.8%

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 1
Current: $1,290 AUD|Low: $822 AUD|High: $2,193 AUD|Avg: $1,400 AUD|-5.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 5$822 AUD
Retailer 9$992 AUD
Retailer 8$1,056 AUD
Retailer 7$1,088 AUD
Retailer 2$1,193 AUD
Retailer 1$1,290 AUD
Retailer 11$1,370 AUD
Retailer 3$1,456 AUD
Retailer 10$1,664 AUD
Retailer 12$1,753 AUD
Retailer 4$1,779 AUD
Retailer 6$1,968 AUD

30 data points across 12 retailers

14 retailers$822 AUD to $1,968 AUD

A
Cheapest Retailer
-
$822 AUD
HK$4,500 HKD
A
Retailer 2
-
$992 AUD
$695 USD
View
Final sale: no returns
A
Retailer 3
-
$1,056 AUD
$740 USD
View
A
Retailer 4
-
$1,088 AUD
€726 EUR
View
Retailer 5
-
$1,193 AUD
SGD 1,130 SGD
View
Price last confirmed 10 days ago
A
Retailer 6
-
$1,290 AUD
£712 GBP
View
A
Retailer 7
-
$1,370 AUD
$960 USD
View
A
Retailer 8
-
$1,456 AUD
SGD 1,379 SGD
View
A
Retailer 9
-
$1,664 AUD
ZAR 18,834 ZAR
View
B+
Retailer 10
-
$1,733 AUD
View
Retailer 11
-
$1,753 AUD
$1,229 USD
View
Price last confirmed 9 days ago
Retailer 12
-
$1,779 AUD
View
Price last confirmed 29 days ago
B+
Retailer 13
-
$1,968 AUD
£1,086 GBP
View
Most Expensive
NZ Jewellers
7681b851-dd8a-4608-be12-c6db9e8b3316 · Sep 25
$3,867 AUD
$2,710 USD
View
Price last confirmed 38 days ago
13 more retailers have this diamond
Prices start from $822 AUDSave up to $1,146 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
0.85ct Heart
$822 AUD