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Heart|Natural|GIA

0.90ct D SI1 Heart Natural Diamond

EX • D/SI1 • GIA 7542212851

Certificate GIA 7542212851

Diamond specifications and retailer prices

From $1,476 AUD
HK$8,100 HKD
As of November 1, 2026
Save $930 AUD (39%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $5,210 AUD at NZ Jewellers · As of September 25, 2026
View at NZ Jewellers

About this 0.9ct natural heart diamond

This 0.9ct natural heart sits in the just-under-one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7542212851. Listed at 14 retailers as of October 31, 2026, with a 63% 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

0.90
Carat
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Pavilion angle42.2°
OriginNatural
Grading LabGIA
CertificateGIA 7542212851
Dimensions6.06 × 6.47 × 4.08 mm
L/W Ratio1.07
Girdle conditionFaceted
Top View
6.06 mm6.47 mm0.90 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 7542212851
Side View
Table 62.0%CrownGirdle: MED-VTKPavilion 42.2°Culet: NoneDepth 63.1%

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 1
Current: $1,915 AUD|Low: $1,458 AUD|High: $3,705 AUD|Avg: $2,309 AUD|-17.1%
Retailer 1
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
November 2, 2026
Retailer 9$1,476 AUD
Retailer 10$1,794 AUD
Retailer 15$1,848 AUD
Retailer 8$1,885 AUD
Retailer 1$1,915 AUD
Retailer 12$1,936 AUD
Retailer 11$1,950 AUD
Retailer 14$2,113 AUD
Retailer 3$2,150 AUD
Retailer 2$2,406 AUD
Retailer 6$2,614 AUD
Retailer 4$2,768 AUD
Retailer 7$2,891 AUD
Retailer 13$3,043 AUD
Retailer 5$3,705 AUD

33 data points across 15 retailers

14 retailers$1,476 AUD to $2,406 AUD

A
Cheapest Retailer
-
$1,476 AUD
HK$8,100 HKD
A
Retailer 2
-
$1,794 AUD
€1,200 EUR
View
A
Retailer 3
-
$1,848 AUD
$1,298 USD
View
Final sale: no returns
A
Retailer 4
-
$1,885 AUD
$1,324 USD
View
A
Retailer 5
-
$1,915 AUD
£1,059 GBP
View
A
Retailer 6
-
$1,936 AUD
$1,360 USD
View
A
Retailer 7
-
$1,950 AUD
$1,370 USD
View
Retailer 8
-
$2,113 AUD
SGD 2,006 SGD
View
Price last confirmed 10 days ago
B+
Retailer 9
-
$2,406 AUD
SGD 2,284 SGD
View
Retailer 10
-
$2,614 AUD
View
Price last confirmed 27 days ago
Retailer 11
-
$2,891 AUD
ZAR 32,804 ZAR
View
Price last confirmed 28 days ago
Retailer 12
-
$3,043 AUD
$2,137 USD
View
Price last confirmed 9 days ago
Retailer 13
-
$3,705 AUD
£2,049 GBP
View
Price last confirmed 25 days ago
Most Expensive
NZ Jewellers
6cf700fb-68c7-4599-85e5-e44d1bfc0231 · Sep 25
$5,210 AUD
$3,660 USD
View
Price last confirmed 37 days ago
13 more retailers have this diamond
Prices start from $1,476 AUDSave up to $930 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
0.90ct Heart
$1,476 AUD