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Heart|Natural|GIA

0.90ct E SI1 Heart Natural Diamond

EX • E/SI1 • GIA 2537509021

Certificate GIA 2537509021

Diamond specifications and retailer prices

From $1,938 AUD
$1,361 USD
As of October 28, 2026
Save $3,454 AUD (64%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $5,391 AUD at NZ Jewellers · As of October 30, 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 E 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 2537509021. Listed at 16 retailers as of October 28, 2026, with prices from $1,938 to $5,391, a $3,454 spread on the same certified stone. NZ Jewellers lists it at $5,391. 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
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.24°
Pavilion angle39.58°
OriginNatural
Grading LabGIA
CertificateGIA 2537509021
Dimensions6.08 × 6.50 × 3.66 mm
L/W Ratio1.07
Top View
6.08 mm6.50 mm0.90 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2537509021
Side View
Table 59.0%Crown 35.24°Girdle: VTK-ETKPavilion 39.58°Culet: NoneDepth 56.3%

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: Oct 28
Current: $5,391 AUD|Low: $1,938 AUD|High: $5,391 AUD|Avg: $2,878 AUD
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
October 30, 2026
Retailer 15$1,938 AUD
Retailer 14$2,040 AUD
Retailer 3$2,049 AUD
Retailer 10$2,050 AUD
Retailer 9$2,209 AUD
Retailer 12$2,209 AUD
Retailer 11$2,312 AUD
Retailer 8$2,475 AUD
Retailer 4$2,712 AUD
Retailer 13$3,013 AUD
Retailer 7$3,046 AUD
Retailer 5$3,410 AUD
Retailer 6$4,095 AUD
Retailer 2$4,266 AUD
NZ Jewellers$5,391 AUD

31 data points across 15 retailers

16 retailers$1,938 AUD to $5,391 AUD

A
Cheapest Retailer
-
$1,938 AUD
$1,361 USD
A
Retailer 2
-
$2,040 AUD
$1,433 USD
View
Final sale: no returns
A
Retailer 3
-
$2,049 AUD
$1,439 USD
View
A
Retailer 4
-
$2,050 AUD
$1,440 USD
View
A
Retailer 5
-
$2,209 AUD
$1,552 USD
View
B+
Retailer 6
-
$2,209 AUD
$1,552 USD
View
B+
Retailer 7
-
$2,312 AUD
$1,624 USD
View
B+
Retailer 8
-
$2,475 AUD
£1,369 GBP
View
B+
Retailer 9
-
$2,693 AUD
$1,892 USD
View
B+
Retailer 10
-
$2,712 AUD
$1,905 USD
View
B+
Retailer 11
-
$3,013 AUD
€2,016 EUR
View
Retailer 12
-
$3,046 AUD
View
Price last confirmed 25 days ago
B+
Retailer 13
-
$3,410 AUD
ZAR 38,701 ZAR
View
B
Retailer 14
-
$4,095 AUD
£2,265 GBP
View
B
Retailer 15
-
$4,266 AUD
£2,359 GBP
View
Most Expensive
B
NZ Jewellers
3d32a77e-4bb2-43a1-b062-5ec33f9ee676 · Oct 30
$5,391 AUD
$3,787 USD
View
15 more retailers have this diamond
Prices start from $1,938 AUDSave up to $3,454 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
$1,938 AUD