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Heart|Natural|GIA

0.90ct D SI1 Heart Natural Diamond

GD • D/SI1 • GIA 1545770776

Certificate GIA 1545770776

Diamond specifications and retailer prices

From $1,804 AUD
HK$9,900 HKD
As of November 1, 2026
Save $3,276 AUD (64%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $5,844 AUD at NZ Jewellers · As of October 18, 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 standard cut grade stated by the retailer rather than the lab and certified by GIA 1545770776. Listed at 22 retailers as of October 28, 2026, with a 182% 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

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

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1545770776
Dimensions6.01 × 6.78 × 3.84 mm
L/W Ratio1.13
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Crystal
Top View
6.01 mm6.78 mm0.90 ctD / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1545770776
Side View
Table 62.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 56.7%

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: $2,667 AUD|Low: $1,786 AUD|High: $5,108 AUD|Avg: $2,821 AUD|+1.5%
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
Retailer 16
November 2, 2026
Retailer 10$1,804 AUD
Retailer 9$1,896 AUD
Retailer 4$2,195 AUD
Retailer 13$2,236 AUD
Retailer 7$2,250 AUD
Retailer 2$2,278 AUD
Retailer 3$2,335 AUD
Retailer 11$2,484 AUD
Retailer 5$2,506 AUD
Retailer 16$2,574 AUD
Retailer 1$2,667 AUD
Retailer 6$2,887 AUD
Retailer 8$3,147 AUD
Retailer 12$3,510 AUD
Retailer 14$4,193 AUD
Retailer 15$5,080 AUD

31 data points across 16 retailers

22 retailers$1,804 AUD to $5,080 AUD

A
Cheapest Retailer
-
$1,804 AUD
HK$9,900 HKD
A
Retailer 2
-
$1,896 AUD
₹126,869 INR
View
B+
Retailer 3
-
$2,195 AUD
$1,542 USD
View
Final sale: no returns
B+
Retailer 4
-
$2,236 AUD
$1,571 USD
View
B+
Retailer 5
-
$2,250 AUD
SGD 2,136 SGD
View
B+
Retailer 6
-
$2,278 AUD
$1,600 USD
View
B+
Retailer 7
-
$2,293 AUD
$1,611 USD
View
B+
Retailer 8
-
$2,335 AUD
$1,640 USD
View
Retailer 9
-
$2,396 AUD
$1,683 USD
View
Price last confirmed 17 days ago
Retailer 10
-
$2,396 AUD
$1,683 USD
View
Price last confirmed 15 days ago
B
Retailer 11
-
$2,484 AUD
$1,745 USD
View
Retailer 12
-
$2,506 AUD
$1,760 USD
View
Price last confirmed 16 days ago
B+
Retailer 13
-
$2,506 AUD
SGD 2,379 SGD
View
B
Retailer 14
-
$2,574 AUD
$1,808 USD
View
B
Retailer 15
-
$2,667 AUD
£1,475 GBP
View
Retailer 16
-
$2,765 AUD
$1,942 USD
View
Price last confirmed 14 days ago
B
Retailer 17
-
$2,887 AUD
$2,028 USD
View
Retailer 18
-
$3,147 AUD
View
Price last confirmed 27 days ago
B
Retailer 19
-
$3,510 AUD
ZAR 39,834 ZAR
View
B
Retailer 20
-
$4,193 AUD
£2,319 GBP
View
B
Retailer 21
-
$5,080 AUD
£2,810 GBP
View
Most Expensive
NZ Jewellers
4229440d-b76b-4ca5-ab6a-6a06c44d0a39 · Oct 18
$5,844 AUD
$4,105 USD
View
Price last confirmed 15 days ago
21 more retailers have this diamond
Prices start from $1,804 AUDSave up to $3,276 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
$1,804 AUD